Physics Questions - Science Bowl

TOSSUP 142) Physics SA Holography is an application of what technique involving a large amount of equally spaced, parallel slits through which monochromatic light is passed through?

Diffraction grating

TOSSUP 35) Physics SA A test charge of 10C experiences a force of 500N due to the electric field of a nearby point charge. Calculate the magnitude of the electric field at this point.

50 N/C

TOSSUP 43) Physics SA Calculate the moment of inertia of a hollow, thin sphere rotating about its central axis with a mass of 3kg and a radius of 5m.

50kgm2

BONUS 166) Physics SA An object is 60 meters tall has an image that is 48 meters tall and 44 meters from a mirror. How far is the object from the mirror?

55

TOSSUP 36) Physics SA If an object is placed in front of a concave mirror with a focal length of 5m and no image is produced, how far is the object from the mirror?

5m

BONUS 95) Physics SA A circular loop of wire with radius 2centimeters carries a current of 9 amperes, and a uniform magnetic field of 5 milliteslas is applied parallel to the plane of the loop. To one significant figure and in scientific notation, calculate the maximum torque in newton-meters exerted on the loop.

5x10-5

BONUS 104) Physics SA The magnitude of magnetic flux passing through a closed loop is modeled by the graph 2t2-9t+16. What is the voltage induced in the loop at t=2?

-1

TOSSUP 50) Physics SA A point charge initially at rest is accelerated to a speed at which it has a kinetic energy of 52J. If the charge is 13C, calculate the change in electric potential in V.

-4V

TOSSUP 79) Physics SA A 12 volt battery is connected to three identical resistors of 9 ohms arranged in parallel. Calculate the current that flows when the circuit is closed.

4

TOSSUP 15) Physics SA A block attached to a spring undergoes simple harmonic motion. Find the potential energy of the system at the equilibrium position.

0

TOSSUP 85) Physics SA A magnetic field is applied to a charged particle initially at rest. What is the acceleration of the particle after the magnetic field is applied?

0

TOSSUP 94) Physics SA A square loop of wire of area 16m carries a current of 6 amperes and a uniform magnetic field of 12 teslas is directed parallel to the normal of the plane of the loop. What is the net torque acting on the loop?

0

BONUS 151) Physics SA Giving your answer in terms of pi, calculate the torque exerted by a 10 tesla uniform magnetic field that is perpendicular to the normal of a circular loop of wire of radius 4 cm and has current of 14 amperes.

0.224pi Week of 1/18

TOSSUP 29) Physics SA What is the wavelength of the fundamental frequency produced by a 0.85m long guitar string?

1.7m

BONUS 34) Physics SA What is the second highest energy particle collider ever built, located at the Fermi national Accelerator Laboratory?

Tevatron

TOSSUP 130) Physics SA A block of mass 9 kg is used to compress a spring of constant 4 newtons per meter a distance of 2cm, then released. Calculate the velocity of the block the moment it leaves the spring, to two significant figures and in scientific notation.

1.3x10-2

BONUS 100) Physics SA A 10 meter long segment of an ideal solenoid contains 200 loops and carries a current of 6 microamperes. Assuming the permeability of free space is 4pi x 10-7 T*m/A, calculate the magnetic field strength within this segment of the solenoid, to two significant figures and in scientific notation.

1.4x10-10 Week of 11/2

BONUS 132) Physics SA A thin lens has a radii of curvature 20 cm and 30 cm. If the refractive index of the lens is 1.5, what is its focal length in centimeters?

120

BONUS 175) Physics SA If a violin string is 0.5 meters long and has a mass of 3.0 grams, what tension, in Newtons, must be on the string to give a wave velocity of 14.14 meters per second?

1.2

BONUS 14) Physics SA A block of mass 64g sits on a frictionless table and is attached to a light spring with a force constant of 25N/m. The spring is compressed 20cm and released, and the block oscillates in simple harmonic motion. To 2 significant figures, calculate the velocity of the block, in m/s, at the equilibrium point.

1.25 m/s

BONUS 85) Physics SA The force applied to a proton traveling 15 m/s by a perpendicular magnetic field is 30 N. What is the magnitude of this magnetic field, in teslas and in scientific notation?

1.25x1019

BONUS 29) Physics SA A block attached to a spring moves in simple harmonic motion. The block has a mass of 120g and the spring constant is 3.0N/m. Using correct appropriate significant figures and in seconds, calculate the period of the oscillator.

1.2s

BONUS 97) Physics SA Given the permeability of free space as 4pi x 10-7 T m/A, calculate the magnitude of the magnetic field along a circle of radius of 2cmn with a wire passing through its center carrying a current of 12 amperes, to two significant figures and in scientific notation.

1.2x10-4

BONUS 98) Physics SA An arbitrary amperian path is drawn around two wires carrying currents of 12 amperes and 3 amperes, each flowing in the same direction and perpendicular to the surface bounded by the path. Assuming the permeability of free space is 4pi x 10-7 T m/A, calculate the line integral of the magnetic field along this path, with two significant figures and in scientific notation.

1.8 x10-5

TOSSUP 4) Physics SA Planet X exerts a force of 5.4x1011 N on a nearby planet Y of mass 3.0x106 kg. In scientific notation and to the correct number of significant figures, determine the magnitude of the gravitational field of planet X.

1.8x105 N/kg

BONUS 142) Physics SA A 5-gram bullet is shot with an initial velocity of 500 meters per second into a 2-kilogram ballistic pendulum and emerges from the pendulum with a speed of 300 meters per second. Given 10 meters per second squared as g, to what height in meters does the pendulum rise?

1/80 Week of 12/29

TOSSUP 171) Physics SA A train moving at 33 meters per second emits a whistle with a frequency of 1100 hertz. Assuming that the speed of sound in air is 330 meters per second, what is the frequency of hertz, measured by a stationary observer behind the train?

1000

BONUS 116) Physics SA The maximum voltage of an AC circuit is 150 volts. What is the root-mean-square voltage of the circuit, to the nearest whole number?

106

BONUS 168) Physics SA An AC circuit has a maximum electric potential of 150 volts. Calculate the root-mean-square voltage of the circuit to the nearest whole number.

106

BONUS 65) Physics SA Two identical parallel plate capacitors of 20 microfarads are connected in series. If each capacitor holds a charge of 100 microcoulombs, what is the electric potential of the battery attached to the capacitors, in Volts?

10V

BONUS 157) Physics SA Given g as 10 meters per second squared and the speed of sound as 331 meters per second, if you dropped a pebble down a well and heard a splash 5 seconds later, approximately how far down, in meters rounded to the nearest ten, was the water?

120 Week of 1/26

TOSSUP 31) Physics SA Two particles have an attractive electrostatic force of 3F between them. If the charge of each particle is multiplied by 4 and the distance between them is halved, what is the new force between them?

12F

BONUS 110) Physics SA The inductance of a circuit is 5 henries. If the time rate of change of current in the circuit is 26 amperes/second, what is the induced emf, in volts in the circuit?

130

BONUS 38) Physics SA An electric field of 20 N/C passes through a finite plane of length 6.0m and width 15m. If the angle between the field and the plane is 45 degrees, calculate the electric flux along the plane to two significant figures.

1300 N m2/C

BONUS 72) Physics SA The equivalent capacitance of three capacitors arranged in series is 5/3 microfarads. If two capacitors have capacitances of 3 and 5 microfarads, what is the capacitance of the third?

15 Week of 9/30

BONUS 37) Physics SA A square sheet of thin fabric holds and excess of 240C worth of electrons. If the fabric is 4m long, what is its surface charge density in standard SI units?

15 C/m2

BONUS 44) Physics SA A block is released from the top of a frictionless ramp. At the bottom of the ramp, the block encounters a frictionless loop. If the radius of the loop is 5m, from what height must the block initially be released in order to clear the loop?

15m

BONUS 96) Physics SA What is the maximum number of 100-watt light bulbs that can run on a 110volt residential circuit protected by a 15-amp fuse without blowing the fuse?

16 Week of 10/26

TOSSUP 61) Physics SA Calculate the capacitance of a parallel plate capacitor holding a charge of 256 microcoulombs with a potential difference of 16V between the plates, in microfarads.

16 microF

BONUS 158) Physics SA If a race car driver fully engages the brakes of his car traveling at 200 kilometers per hour, how many times farther will the car skid than if it was traveling at 50 kilometers per hour when the brakes were engaged?

16 times

BONUS 7) Physics SA In a hydraulic press, one end has a piston with a radius of 4cm. Liquid in the press transmits pressure to a 2nd piston with a radius of 13cm. Rounded to the nearest hundred, calculate the force applied to the smaller piston that will result in a force of 17,000 N in the second piston.

1600N

TOSSUP 44) Physics SA Calculate the moment of inertia of a thin rod rotating about its center with a mass of 12kg and a length of 13m.

169kgm2

TOSSUP 37) Physics SA A ball is dropped from the top of a building and takes 6 seconds to hit the ground. If each floor of the building is 10 feet tall, how many floors are contained in the building?

18

BONUS 135) Physics SA A student performing a double slit experiment sets a screen 10 meters away from two slits 25 micrometers apart. He then shines 450nm light through the slits and observes the interference pattern. Calculate the distance in centimeters between adjacent bright fringes on the screen.

18 cm

BONUS 47) Physics SA A disc with a radius of 3m and 4kg that can spin freely about its central axis is initially at rest when a torque of 108Nm is applied to the object tangentially to its circumference for 8 seconds. Calculate the disc's final angular displacement, in radians at the end of the 8 seconds.

192

BONUS 69) Physics SA A 5kg ball is dropped from a height of 20 meters. What is the kinetic energy, in kJ, of the ball at the moment just before it hits the ground?

1kJ

TOSSUP 74) Physics SA The conductivity of iron at 20 degrees celsius is 1x107 amps per volt-meter. What is the resistivity of iron at the same temperature, in ohm-meters and in scientific notation?

1x10-7

BONUS 35) Physics SA Two point charges of 4.5C and -4.5C are located 18m apart. In scientific notation and in N/C, calculate the electric field at the midpoint between the charges.

1x109 N/C

BONUS 155) Physics SA Suppose that the Earth's radius was reduced by a factor of 4. By what factor will the surface escape velocity be multiplied?

2

BONUS 159) Physics SA An oscillating system has a characteristic frequency of 4 radians per second and an effective spring constant of 32 Newtons per meter. What is the mass, in kilograms, of the oscillator?

2

TOSSUP 101) Physics SA A ball is thrown horizontally off a 20m high cliff. How long, in seconds, will it take for the ball to hit the ground?

2

TOSSUP 102) Physics SA The acceleration due to gravity on Jupiter is 2.5g, where g=10m/s2. If an object is thrown upwards at a velocity of 10m/s, what will be its displacement at the peak of its flight?

2

TOSSUP 129) Physics SA An object placed 5 meters away from a mirror creates an image that is 10 meters away from the mirror. What is the lateral magnification of the mirror?

2

TOSSUP 170) Physics SA An input force of 10 newtons is applied to the small piston of a hydraulic lift, which exerts a 150 newton force on the large piston with a cross sectional area of 30 square centimeters. What is the cross sectional area, in square centimeters, of the small piston?

2

BONUS 154) Physics SA Calculate the underwater pressure in atmospheres in a freshwater lake at a depth of 30 meters.

4

BONUS 83) Physics SA A 1000 square meter solar array can output 200 watts per square meter. How many 5 volt light bulbs can be powered by this array if the maximum amperage is 20 amperes?

2,000

BONUS 36) Physics SA (ignore the impossible numbers) A particle with a charge of 4C and a mass of 5kg is initially at rest when a uniform electric field of 100N/C is applied to it. What distance does the particle travel after 8 seconds?

2,560m Week of 8/17

BONUS 92) Physics SA What is the force exerted by a 13N/C electric field on an electron, to three significant figures and in scientific notation?

2.08x10-18

BONUS 8) Physics SA An empty, 10g water bottle is filled with 200g of an unknown liquid and placed in a bucket of water, where it floats. Calculate the buoyant force, in newtons, exerted on the bottle, rounded to the first decimal point.

2.1 N

TOSSUP 166) Physics SA The force exerted by a 5 tesla magnetic field on a straight 2 meter long current carrying wire is 25 Newtons. Calculate the current flowing through the wire in amperes.

2.5

TOSSUP 175) Physics SA What is the ideal mechanical advantage of an inclined plane with a height of 10 meters and a diagonal length of 25 meters?

2.5

BONUS 31) Physics SA A proton and an electron are separated by a distance of 3.0x10-7 m. Calculate the electric force between them, in N and to 2 significant figures.

2.6x10-15 N

BONUS 2) Physics SA Two spherical weights of mass 17kg each remain at rest on a level floor 67 meters away from each other. Assuming G=6.7x10-11 N m2/kg2, what is the magnitude of the gravitational force that one weight exerts on the other to one decimal point?

2.9x10-10

BONUS 64) Physics SA The equivalent capacitance of two capacitors arranged in series is 7.5 microfarads. If the capacitance of one capacitor is 12 microfarads, what is the capacitance of the other capacitor?

20 microfarads

BONUS 71) Physics SA A torque applied tangentially to a solid disc with a mass of 5kg and a radius of 4m causes it to accelerate uniformly from rest to an angular velocity of 30 radians/s in 6 seconds. What is the magnitude of the torque applied to the disc, in Nm?

200

TOSSUP 120) Physics SA The first coil of a step up transformer has 60 turns and the second coil has 3000 turns. If an electric potential of 4 kilovolts enters the transformer, what electric potential, in kilovolts, will leave the transformer?

200

BONUS 20) Physics SA A wave is sent down a thin, stretched string with a tension of 20N. If the string has a linear mass density of 50g/m, what is the speed of the wave, in m/s?

20m/s

BONUS 106) Physics SA Calculate the force exerted on a test charge of 13C in an electric field of 17 V/m.

221N

BONUS 172) Physics SA Assuming the velocity of light is 300,000 kilometers per second, what is the velocity of light, in kilometers/sec, in a transparent substance with a refractive index of 1.33?

225,000

BONUS 66) Physics SA Two capacitors are arranged in series and connected to a battery with an electric potential of 15 volts. If the capacitors have capacitances of 25 microfarads and 100 microfarads, how much total energy can they store in joules?

2250 Week of 9/22

BONUS 15) Physics SA A block of unknown mass is attached to a light spring with a force constant of 2 N/m. The spring is compressed 5m and released, setting the block into simple harmonic motion. To 2 significant figures and in Joules, calculate the kinetic energy of the block when it is 3.7m away from its initial release point.

23[J

TOSSUP 155) Physics SA How much energy, in joules, does a circuit containing a 2 volt battery and a 1.5 ohm resistor dissipate over 9 seconds?

24

TOSSUP 93) Physics SA Calculate the rotational inertia of a hollow sphere with a mass of 9kg and a radius of 2m.

24

BONUS 25) Physics SA The distance between two adjacent antinodes of a standing wave is 12 m. What is the wavelength of each traveling wave that comprises the standing wave?

24 m

TOSSUP 55) Physics SA Calculate the work done by an electric field of 2N/C on a point charge of 2C that travels a distance of 6m.

24J

BONUS 119) Physics SA Calculate the impedance, in ohms, of a series RLC circuit with a resistance of 7 ohms, an inductive reactance of 32 ohms, and a capacitive reactance of 8 ohms.

25

BONUS 124) Physics SA Calculate the impedance, in ohms, of a series RLC circuit with a resistance of 7 ohms, an inductive reactance of 32 ohms, and a capacitive reactance of 8 ohms.

25

BONUS 84) Physics SA A person is driving a 1500kg car driving at 22 m/s. After 10 seconds, he slams on his brakes and skids to stop in 4 seconds. How far, in meters, did the car travel over this entire interval?

264 Week of 10/13

BONUS 33) Physics SA Calculate the force exerted on a test charge of 15C in an electric field of 18 N/C.

270N

BONUS 140) Physics SA Assuming that the speed of sound in air is 343 meters per second and providing your answer to the nearest integer, what is the fundamental frequency in hertz produced by a pipe with a length of 3 meters that is open at one end?

29 Hz

TOSSUP 72) Physics SA How much energy, in joules, is stored in a capacitor with a capacitance of 4 farads and a charge of 4 coulombs?

2J

TOSSUP 149) Physics SA How many lumens does an isotropic source of 1 candela emit into the upper half plane?

2pi

TOSSUP 90) Physics SA A charged particle of mass 12 kilograms and charge of 3 coulombs travels perpendicularly to a uniform magnetic field of 4 teslas. In terms of pi, find the period of the particle, assuming uniform circular motion.

2pi

TOSSUP 62) Physics SA What is the capacitance, in microfarads and in scientific notation, of a charged, conducting sphere with a radius of 18m?

2x10-9

TOSSUP 68) Physics SA The electric potential between the plates of a capacitor is measured by a multimeter to be 18V. When a dielectric is inserted between the plates, the new electric potential is measured to be 6V. What is the dielectric constant of the material between the plates?

3

TOSSUP 84) Physics SA Calculate the voltage required to charge a 12 farad capacitor with 54 joules of energy.

3

TOSSUP 148) Physics SA An electric field does 12 joules of work on a charged particle, moving it from 2 volts to 5 volts. What is the charge of the particle in coulombs?

4

BONUS 56) Physics SA Calculate the electric potential at a point 27m away from a point charge of 9C, to 2 significant figures and in scientific notation.

3.0x109

BONUS 103) Physics SA A 26 meter long wire carries a current of 6 amperes. A uniform magnetic field of 4 teslas is applied at an angle of 30 degrees to the wire. Calculate the force applied to the wire.

312 Week of 11/10

TOSSUP 144) Physics SA Calculate the rotational inertia, in kilogram meters squared, of a thin spherical shell of mass 3 kilograms and a radius of 4 meters.

32

TOSSUP 65) Physics SA Calculate the rotational inertia of a solid sphere with a radius of 4m and a mass of 5kg.

32 kgm2

BONUS 45) Physics SA A very large baton consists of a thin rod of length 8m and mass 36kg with one small sphere of mass 4kg at each end. When the baton spins about its center, what is its rotational inertia?

320

TOSSUP (INSTANT) 21) Physics SA What is the speed of sound at 0 degrees celsius, in m/s?

331m/s

TOSSUP 32) Physics SA Calculate the speed of sound at 4 degrees celsius.

333.4 m/s

BONUS 26) Physics SA A tube open at both ends is 2m long. If the temperature of the air is 5 degrees celsius, calculate the frequency of the 3rd overtone produced by the tube.

334Hz

TOSSUP 69) Physics SA Calculate the speed of sound at 8 degrees celsius.

335.8 m/s

BONUS 13) Physics SA A block of mass 5kg is attached to a light spring. The spring is compressed 2m and is released, at which point the acceleration of the block is 14m/s2. Calculate the force constant of the spring.

35

BONUS 55) Physics SA The graph V(x) indicates the electric potential at different distances x away from an arbitrary reference point taken to be 0V. If V(x)=2x3+3x2+x+4, then find the value of the electric field at the point x=2.

37

BONUS 102) Physics SA A ball is thrown at 10m/s off a 60m high cliff at an angle of 30 degrees above the horizontal. How many seconds after launch will it take the ball to reach the ground at the base of the cliff?

4

TOSSUP 2) Physics SA An ideal spring with a spring constant of 500 N/m sits vertically on a table. How much work, in kJ, must be done on the spring to compress it to a distance of 4m?

4 kJ

BONUS 49) Physics SA Calculate the work done on an electron moving from an electric potential of 7V to 4V, two 2 significant figures and in scientific notation.

4.8 x 10-19

BONUS 101) Physics SA A catapult sitting on a flat plane launches a projectile at 20m/s at an angle of 45 degrees above the horizontal. How far away from the catapult will the projectile land?

40

TOSSUP 63) Physics SA Calculate the equivalent capacitance of 4 capacitors with capacitances of 16 microF, 4 microfarads, 3microfarads, and 17 microfarads, connected in parallel.

40 microfarads

TOSSUP 27) Physics SA A tuning fork vibrates at a frequency of 440Hz. When played alongside the piano string to be tuned. A beat frequency of 8Hz is produced. If the string sounds flat compared to the tuning fork, what is its current frequency?

432 Hz

TOSSUP 70) Physics SA What is the force exerted on 4 coulomb point charge by an electric field of 11 N/C?

44 N

TOSSUP 82) Physics SA A chunk of silver has a density of 10,500 kilograms per cubic meter and a volume of 5 cubic meters is submerged in water. Assuming the density of water is 1,000 kilograms per cubic meter, what is the apparent weight of this chunk of silver?

475,000

BONUS 76) Physics SA How much power, in watts, is used to accelerate a 5kg object from rest to 14m/s in 10 seconds?

49 watts

TOSSUP 71) Physics SA A capacitor has an electric potential difference of 16V and an electric field of 24N/C between the plates without a dielectric. Upon the insertion of an insulator with a dielectric constant of 4, what are the new values of the electric potential and electric field?

4V and 6N/C

BONUS 146) Physics SA Calculate the energy in joules of a photon with a wavelength of 500 nanometers to one significant digit.

4x10-19

BONUS 73) Physics SA The resistivity of copper at 20 degrees celsius is 1.7x10-8 Ohm-meters. Giving your answer in scientific notation to one sigfig, what is the resistance of a copper wire that is 20m long and has a cross sectional area of 8.5 square millimeters?

4x10-2 Ohms

TOSSUP 6) Physics SA Planet Δ completes one full orbit around the star ɑ in 8x106 s. Find the semimajor axis of this planet.

4x104 m

BONUS 109) Physics SA A circular loop of wire with radius 18m is placed in a uniform magnetic field of 5 teslas, with the plane of the loop perpendicular to the field. To one significant digit and in scientific notation, calculate the magnetic flux passing through the loop in webers.

5x103 Week of 11/16

BONUS 87) Physics SA A particle of mass 12kg and a positive charge of 2 coulombs is traveling at a speed of 3x104 m/s when a uniform magnetic field of 36 teslas is applied perpendicular to the particle's motion. Calculate the radius of the circular path taken by the particle after the field is applied.

5x103 m

BONUS 94) Physics SA An electron is fired through parallel plate electrodes that are 5 millimeters apart. A 2 millitesla magnetic field is perpendicular to the electric field between the plates, which have a potential difference of 600 volts. If the electron is NOT deflected, at what speed, in meters per second and in scientific notation, is it traveling?

6.0x107

BONUS 67) Physics SA The capacitance of a parallel plate capacitor is 12.5 microfarads. An insulating material with a dielectric constant of 2.50 is placed between the plates. The dielectric allows for the distance between the plates to be decreased by a factor of 5. What is the new capacitance of the plates, to 3 significant figures and in microfarads?

6.25

BONUS 170) Physics SA A figure skater is holding his hands outstretched as he spins at 180 rotations per minute. If his hands are 210 centimeters apart, what is the speed in meters per second of his hands in terms of pi?

6.3pi

BONUS 6) Physics SA A planet of mass 3.0x1011 kg exerts a gravitational force on a satellite of mass 5.0x106 kg that is 1.5x1013 km. Giving your answer in scientific notation and with proper significant digits, find the potential energy, in Joules, of this planet-satellite system.

6.7x10-6 J Week of 7/12

BONUS 112) Physics SA A ball is launched from the ground at an unknown angle across a flat plane with an initial velocity of 10 meters per second. The maximum height reached by the ball is 45m and lands 30m away from its initial position. Calculate the angle from which the ball was launched.

60

TOSSUP 83) Physics SA A capacitor of 12 farads and a resistor of 5 ohms are connected to a 3 volt battery. When the circuit is closed, how long will it take for the initial current to reduce to 1/e its original value?

60

BONUS 86) Physics SA A magnetic field of 5 teslas applies an upward force to a positively charged particle traveling North at 12 m/s. Calculate the magnitude and direction of an electric field, in N/C that applies the same amount of force on this particle in the same direction as the magnetic field.

60 West

BONUS 117) Physics SA The frequency of an alternating current source is 60 hertz. An inductor connected to the source has an inductance of 5 henries. In terms of pi, what is the inductive reactance of the inductor?

600pi

BONUS 156) Physics SA In scientific notation to one significant figure, calculate the period of a simple pendulum with length 1 millimeter.

6x10^-2

BONUS 4) Physics SA 3 point masses A, B, and C form a straight line in space, with mass B in between mass A and C. Mass A produces a gravitational field with a magnitude of 6.0x108 N/kg and mass C produces a gravitational field with a magnitude of 5.0x108 N/kg. If mass B has a mass of 7.0x109 kg, and giving your answer in scientific notation with correct significant figures, find the magnitude and direction of the net gravitational force on mass B in Newtons.

7.0x1017 N toward mass A

BONUS '43) Physics SA A ball is thrown upwards initial velocity of 10m/s at a height of 4m above the ground. Calculate the height of the ball from the ground after 1.5 seconds to 2 significant figures.

7.8m

BONUS 41) Physics SA A small ball of mass 5kg attached to a light string 6m long is spun in a horizontal circle with a tangential velocity of 24m/s. Calculate the angular momentum of the ball, in kilogram meters squared per second.

720

BONUS 52) Physics SA A point charge of 4C within a uniform electric field of 12N/C travels a distance of 15m. Calculate the charge's change in potential energy in J.

720J

BONUS 23) Physics SA A ball is dropped from the top of a building and takes 12 seconds to hit the ground. How tall is the building, in meters?

720m

BONUS 78) Physics SA Three identical resistors of 6 ohms arranged in parallel are connected to a 5 volt battery. Calculate the amount of energy in joules dissipated by the battery after the circuit is closed for one minute.

750 J Week of 10/5

TOSSUP 135) Physics SA A 5kg box initially at rest slides down from the top of a rough ramp that is 40 meters long and makes a 30 degree angle with the floor. When the box reaches the ground, it has a velocity of 10 meters per second. Calculate the work in joules done by friction.

750J

TOSSUP 52) Physics SA Calculate the mechanical advantage of a wheel with a radius of 24cm if it is attached to an axle with a 6cm diameter.

8

BONUS 1) Physics SA Iram rides his bike 6km North, then 4 km 60 degrees east of north. What is the magnitude of his overall displacement?

8+2sqrt(3)

BONUS 54) Physics SA Calculate the electric potential at a point 18m away from a point charge of 162C, to 2 significant figures and in scientific notation.

8.1x1010 Week of 9/9

BONUS 63) Physics SA Taking the permittivity of free space as 8.85x10-12 C2/Nm2, calculate the capacitance, in microfarads, of a square-shaped parallel-plate capacitor with a side-length of 5 centimeters and a separation distance of 2.5mm.

8.85x10-10 microfarads

TOSSUP 105) Physics SA A magnetic field of 5 teslas is applied to a 4 meter long conductor moving at 4 meters per second. What is the electric potential induced in the conductor?

80

BONUS 11) Physics SA A viscous fluid flows through a rough pipe. If the pipe's radius decreases by a factor of 3, by what factor would the fluid's flow rate decrease, assuming the pressure within the pipe, length of the pipe, and viscosity of the fluid remains constant?

81

TOSSUP 47) Physics SA A 2kg object is dropped from the top of a 500m tall building, lands on a trampoline at ground level, bounces up to a height of 125m, and finally lands on a platform 50m from the ground. What is the net work done on the object?

9000J

BONUS 75) Physics SA Calculate the rotational inertia of a thin spherical shell with a mass of 18kg and a radius of 4m.

96

BONUS 91) Physics SA A magnetic field of 160 teslas is applied perpendicularly to a wire of length 5 meters with a current of 12 amperes flowing through it. What is the magnitude of the magnetic force experienced by the wire?

9600

BONUS 12) Physics SA Identify all of the following four objects that make use of Bernoulli's principle. I. Sailboat II. Baseball III. Racecar IV. Golfball

All Week of 7/19

TOSSUP 80) Physics SA Calculate the terminal voltage of a battery with electromotive force 16 volts and internal resistance 0.2 ohms if a current of 12 amperes is sent through a wire connecting its terminals.

ANSWER: 13.6V

BONUS 19) Physics SA Identify all of the following 4 particles that are leptons: I. Pion II. Tau III. Muon IV. Electron

All except I

TOSSUP 97) Physics SA Which of Maxwell's equations provides a direct mathematical relationship between an electric current and the magnetic field produced by the current?

Ampere's law

TOSSUP 5) Physics SA What name is given to the greatest distance between the Earth and the moon?

Apogee

TOSSUP 177) Physics SA What is the name for the angle at which light is incident on a medium when the reflected ray is perpendicular to the refracted ray and is completely polarized?

Brewster's angle

TOSSUP 12) Physics SA The shape of an airplane wing causes air to flow above it faster than air flowing below it. This creates a pressure difference and consequently, there is an upward force exerted on the wing by the air. This is a demonstration of what principle of fluid mechanics?

Bernoulli's Principle

TOSSUP 165) Physics SA A venturi tube makes use of what equation of fluid dynamics to calculate the flow rate of a liquid?

Bernoulli's equation

TOSSUP 98) Physics SA What law of magnetism states that the magnetic field at any point due to a steady current is directly proportional to the current and inversely proportional to the distance from the current squared?

Biot-Savart Law

TOSSUP 132) Physics SA What optical aberration is produced by lenses due to the variation in refraction angles between different wavelengths of light?

Chromatic aberration

TOSSUP 81) Physics SA Kirchoff's first rule states that the sum of what quantity at a junction must equal zero?

Current

TOSSUP 152) Physics SA What two scientists performed the first experiment to provide evidence for the wave-nature of particles other than photons?

Davisson and Germer

TOSSUP 133) Physics SA What optical instrument consists of a light-tight chamber, a converging lens, and a charge-coupled device to digitize captured images?

Digital camera

TOSSUP 108) Physics SA What law states that the electric flux passing through a surface is proportional to the charge enclosed by that surface?

Gauss's law

TOSSUP 49) Physics SA Consider a graph displaying electric potential along the y-axis and displacement on the x-axis. What quantity is represented by the slope of this graph?

Electric Field

TOSSUP 33) Physics MC A test charge of +5C is at a point P, where there is an electric field directed right with a magnitude F. If the test charge is replaced with another of -15C, what is the new value of the electric field at point P? W. -3F X. 3F Y. -F Z. F

F

TOSSUP 58) Physics SA What law states that the electric flux passing through a surface is proportional to the charge enclosed by that surface?

Gauss's law

TOSSUP 59) Physics SA What name is given to a conductive container that protects its contents from strong external electric fields?

Faraday Cage

TOSSUP 107) Physics SA Eddy currents are induced in masses of metals that pass through a magnetic field. This is a demonstration of what law of electromagnetism?

Faraday's law

TOSSUP 96) Physics SA What principle states that a light ray will travel along the path between two points that takes the least amount of time?

Fermat's Principle

BONUS 126) Physics SA In 2009, Charles K. Kao earned the Nobel Prize in Physics for his discovery of how to transmit light signals over long distances. This discovery led to the advent of what sizable modern industry?

Fiber optics

TOSSUP 30) Physics SA What mathematical theorem is used to represent any periodic function as a series of sine and cosine functions?

Fourier theorem

TOSSUP 156) Physics SA What theorem gives that any waveform can be created by the sum of constituent waves?

Fourier's theorem

TOSSUP 139) Physics SA What type of diffraction pattern is created when coherent light passes through a single slit that is close to a screen?

Fresnel diffraction pattern

BONUS 131) Physics SA What type of lens found in lighthouse and overhead projectors is capable of producing a powerful light while utilizing cutouts to reduce thickness?

Fresnel lens

TOSSUP 157) Physics SA What German scientist first predicted the existence of two forms of molecular hydrogen?

Heisenberg

TOSSUP 110) Physics SA What is the unit of inductance?

Henry

BONUS 134) Physics SA Identify all of the following three conditions that must be filled in order to observe interference in two sources of light: I. The sources must be coherent II. The sources must be the same color III. The two sources must originate from the same location

I and II only

BONUS 150) Physics SA Identify all of the following four phenomena which are best explained by the particle-model of light: I. Compton scattering II. Photoelectric effect III. Diffraction IV. Red shift

I and II only

TOSSUP 158) Physics SA Identify all of the following three properties of a quantum particle system that are defined in the Schrodinger equation: I. Kinetic energy II. Momentum III. Probability distribution

I and III only

BONUS 50) Physics SA If the net flux passing through a gaussian surface is zero, identify all of the following four statements that must be true. I. There are no charges inside the surface II. The net charge inside the surface is zero III. The electric field is zero everywhere on the surface IV. The number of electric field lines entering the surface equals the number leaving the surface.

I and IV

TOSSUP 41) Physics SA If the net flux passing through a gaussian surface is zero, identify all of the following four statements that must be true. I. There are no charges inside the surface II. The net charge inside the surface is zero III. The electric field is zero everywhere on the surface IV. The number of electric field lines entering the surface equals the number leaving the surface.

I and IV

BONUS 16) Physics SA A baseball is pitched and it curves in the air toward its target. Identify all of the following three types of motion exhibited by the baseball during its time in the air: I. Periodic II. Oscillatory III. Linear

I only

BONUS 3) Physics SA A satellite orbits planet earth. Identify all of the following three values, if increased, would increase the gravitational force it exerts on the Earth. I. Mass of the satellite II. Distance between the satellite and the Earth III. Orbital Period of the Satellite

I only

TOSSUP 160) Physics SA Identify all of the following three experiments that demonstrate the particle nature of light: I. photoelectric effect II. dual slit experiment III. Davisson-germer experiment

I only

BONUS 93) Physics SA Classify each of the following four subatomic particles as a hadron or a lepton: I. Electron II. Electron-neutrino III. Kaon IV. Neutron

I: Lepton, II: Lepton, III: Hadron, IV: Hadron

BONUS 53) Physics SA Identify all of the following three that are conservative fields: I. Magnetic field II. Electric Field III. Gravitational Field

II and IIIpoint A and point B. ANSWER: 4m

BONUS 107) Physics SA Identify all of the following four that are conservative fields: I. Magnetic field II. Electric Field III. Induced Electric Field IV. Gravitational Field

II and IV

TOSSUP 164) Physics SA Identify all of the following four particles that are gauge bosons: I. Quark II. Photon III. Kaon IV. Gluon

II and IV only

III. A magnetic field pointing in the negative-z direction

II only

BONUS 122) Physics SA Ole Roemer was the first to successfully estimate the speed of light by using the time differences between eclipses caused by what moon of jupiter?

Io

BONUS 138) Physics SA What phenomenon, caused by interference of light, is observed when the surface color of soap bubbles, hummingbird feathers, and butterfly wings changes at different viewing angles?

Iridescence

TOSSUP 67) Physics SA What greek letter is commonly used to denote the dielectric constant of a material?

Kappa

TOSSUP 39) Physics SA What law states that the ratio of a planet's period squared to its semimajor axis cubed is equal among all bodies orbiting the sun?

Kepler's third law

BONUS 177) Physics SA What name is given to the pattern of spots that results from x-ray diffraction and is used to deduce the structure of the molecule being studied?

Laue pattern

TOSSUP 106) Physics SA What law of electricity and magnetism gives the sign convention for Faraday's law, indicating that the induced current produces a magnetic field that opposes the change in magnetic flux?

Lenz's Law

BONUS 167) Physics SA Classify each of the following 5 particles as either a lepton or hadron: I. Electron II. Kaon III. Tau-neutrino IV. Anti-neutron V. Sigma

Leptons: I and III, Baryons: II, IV, and V

BONUS 139) Physics SA Charged-coupled devices and complementary metal oxide sensors are devices typically used to detect what?

Light

TOSSUP 141) Physics SA What law gives the intensity of light passing through two polarizers as a function of the angle of rotation between them?

Malus's Law

BONUS 149) Physics SA Careful measurements have shown that the mass of a particular atom is always slightly less than the sum of the masses of the individual neutrons, protons, and electrons of which the atom consists. What is the difference between the mass of the atom and the sum of the masses of its parts called?

Mass defect

TOSSUP 146) Physics SA What scientist first hypothesized that energy from electromagnetic radiation is quantized?

Max Planck

TOSSUP 151) Physics SA What scientist first hypothesized about the quantization of energy in electromagnetic radiation?

Max Planck

TOSSUP 137) Physics SA What phenomenon is observed when a superconducting object deflects an applied magnetic field?

Meissner effect

BONUS 176) Physics SA A weight is sinking in a fluid. The drag force on the weight is equal to a constant times its velocity squared times the density of the fluid. In SI base units, give the dimensions of the constant.

Meters squared

TOSSUP 34) Physics SA What experiment famously used an interferometer in an attempt to prove the existence of the ether?

Michelson Morley Experiment

TOSSUP 127) Physics SA The permeability of free space is a fundamental constant commonly denoted by what greek letter?

Mu

TOSSUP 18) Physics SA What name is given to the angular frequency of an oscillator in the absence of a retarding force?

Natural frequency (ACCEPT: Resonance Frequency)

TOSSUP 168) Physics SA Identify all of the following 3 changes that would increase the magnetic field outside an ideal solenoid of infinite length: I. Increasing current strength II. Increasing turn density III. Adding an iron core

None

TOSSUP 25) Physics SA What term describes a wave that does not follow the superposition principle?

Nonlinear

BONUS 143) Physics SA What name is given to the inconclusive outcome of the Michelson-Morley experiment?

Null result

TOSSUP 73) Physics SA What term is used to describe a conductor that obeys Ohm's law?

Ohmic

TOSSUP 117) Physics SA What are the units of inductive reactance?

Ohms

TOSSUP 19) Physics SA What type of earthquake wave propagates longitudinally?

P waves

TOSSUP 7) Physics SA What law gives that the pressure applied to a fluid is transmitted uniformly and undiminished to every point of the fluid?

Pascal's Law

TOSSUP 115) Physics SA Ampere's law gives that the path integral of a magnetic field is equal to the product of the current and what fundamental constant?

Permeability of free space

BONUS 58) Physics SA The value of the charge enclosed by a Gaussian surface must be divided by what physical constant in order to obtain the value of the electric flux passing through the surface?

Permittivity of free space

TOSSUP 153) Physics SA What type of vector has a length proportional to the maximum value of the variable it represents and rotates counterclockwise at an angular speed equal to the angular frequency of its associated variable?

Phasor

TOSSUP 11) Physics SA What law of fluid mechanics gives a mathematical relationship between the pressure required to keep a viscous fluid moving through a pipe at a fixed speed, and the resistive forces between the fluid and the pipe?

Poiseuille's law

TOSSUP 46) Physics SA A graph displays the force applied to an object against its displacement. What quantity is represented by the negative form of the area underneath this graph?

Potential Energy

TOSSUP 169) Physics SA What specific type of vector, named for its discoverer, represents the rate of energy transfer by an electromagnetic wave?

Poynting vector

TOSSUP 161) Physics SA What semiconducting nanoparticles are produced by growing a small region within a silicon crystal and can be used in solar cells?

Quantum dots

BONUS 30) Physics SA What principle states that the laws of physics are equivalent in all inertial reference frames?

Relativity Principle Week of 8/10

TOSSUP 10) Physics SA Density is often symbolized by what greek letter?

Rho

TOSSUP 13) Physics SA An object whose acceleration is proportional to its position and opposes its displacement is said to be undergoing what type of motion?

Simple harmonic motion

TOSSUP 123) Physics SA What type of reflection is demonstrated when light is reflected from a smooth surface?

Specular reflection

BONUS 162) Physics SA Using the harmonic oscillator model, and assuming the force constant is unchanged between the two molecules, what is the ratio of the fundamental vibrational frequency of hydrogen to that of deuterium?

Sqrt(2)

TOSSUP 150) Physics SA What law states that the total power of the electromagnetic radiation emitted by a black body increases with temperature?

Stefan's Law

TOSSUP 9) Physics SA What name is given to the path taken by a fluid particle in laminar flow?

Streamline

TOSSUP 173) Physics MC A 1 nanocoulomb charge is held 1 meter above an infinite sheet with a surface charge density of 1 nanocoulomb per meter squared. If the charge is moved to 2 meters from the sheet, then by what factor does the electric force on the charge change?

There is no change

TOSSUP 167) Physics SA Muons have been observed to decay a very short time after being produced in the atmosphere. Based on the speed of a muon, this would not be enough time for it to hit the surface of the earth before decaying. However, we have detected muons from the surface, despite the very short lifetime. What quantum phenomenon is responsible for this discrepancy?

Time dilation

TOSSUP 42) Physics SA What name is given to the phenomenon in which light is produced as a result of the crushing, rubbing, or ripping of a material?

Triboluminescence

TOSSUP 91) Physics SA A vertical wire experiences a uniform magnetic field directed north. When an electric current is sent through the wire, it experiences a force due east. What is the direction of the current?

Upwards

BONUS 137) Physics MC One microscope slide is placed on top of another with their left edges in contact and a human hair under the right edge of the upper slide. As a result, a wedge of air exists between the slides. An interference pattern results when monochromatic light is incident on the wedge. What is at the left edges of the slides? W. A dark fringe X. A bright fringe Y. A transition between a dark and bright fringe Z. It is impossible to determine

W

BONUS 118) Physics MC A charged conductor in electrostatic equilibrium has an electric potential of 12V everywhere on its surface. What is the value of the electric potential at a point inside the conductor? W. Equal to 12V X. Greater than 12V Y. Less than 12V Z. More information is needed

W

BONUS 127) Physics SA Huygen's principle is useful for studying properties of light assuming which of the following models? W. Light as a wave X. Light as a particle Y. Light as both a particle and wave Z. Light as either a particle or wave

W

BONUS 128) Physics MC An object is placed 3 meters away from a concave mirror with a radius of curvature 2 meters. Which of the following correctly describes the image formed by the mirror? W. The image lies 1.5 meters in front of the mirror X. The image lies 1.5 meters behind the mirror Y. The image lies 6 meters in front of the mirror Z. The image lies 6 meters behind the mirror

W

BONUS 147) Physics MC An object is placed 3 meters away from a concave mirror with a radius of curvature 2 meters. Which of the following correctly describes the image formed by the mirror? W. The image lies 1.5 meters in front of the mirror X. The image lies 1.5 meters behind the mirror Y. The image lies 6 meters in front of the mirror Z. The image lies 6 meters behind the mirror

W

BONUS 165) Physics MC When a pitcher throws the baseball and releases it with spin, depending upon the orientation of this spin, the ball will "break" in some direction. In other words, a breaking ball is a pitch that does not travel straight like a fastball as it approaches the batter. Which of the following scenarios accurately describes the phenomenon of "breaking"? W. A baseball moving to the right and spinning vertically counterclockwise will experience upward lift. X. A baseball moving to the left and spinning horizontally clockwise will experience a deviation to the left of its original path. Y. A baseball moving to the left and spinning horizontally counterclockwise will experience an upward lift. Z. A baseball moving to the right and spinning vertically clockwise will experience a deviation to the right of its original path.

W

BONUS 171) Physics SA As the current being pulled from a battery decreases, the capacity does which of the following? W. Increases X. Decreases Y. Stays the same Z. It depends on the battery

W

BONUS 21) Physics MC Which of the following is equivalent to the speed of a mechanical wave? W. the square root of the elastic property of the medium divided by the inertial property of the medium X. the square root of the inertial property of the medium divided by the inertial property of the medium Y. The square of the elastic property of the medium divided by the inertial property of the medium Z. the square of the inertial property of the medium divided by the elastic property of the medium

W

BONUS 27) Physics MC An orchestra is performing an all-day outdoor concert. They tune their instruments in the morning, when it is cold, and play into the afternoon, when it becomes much warmer. After returning from a lunch break, a violinist and a flutist decide to compare the sound of their instruments before re-tuning. Which of the following will they observe? W. The violin sounds slightly flat, while the flute sounds slightly sharp X. The violin sounds slightly sharp, while the flute sounds slightly flat Y. Both instruments sound slightly sharp Z. Both instruments sound slightly flat

W

BONUS 46) Physics MC The frequency of a simple harmonic oscillator with a mass of 26kg and a spring constant of 13N/m is closest to which of the following? W. 0.2 X. 1.2 Y. 2.2 Z. 3.2

W

BONUS 59) Physics MC Your younger brother likes to rub his feet on the carpet and then touch you to give you a shock. While you are trying to escape the shock treatment, you discover a hollow metal cylinder in your basement, large enough to climb inside. In which of the following cases will you not be shocked? W. You touch the inner surface of the cylinder, and your brother touches the outer surface X. You touch the outer surface of the cylinder, and your brother touches the inner surface Y. You both touch the outer surface of the cylinder Z. You both touch the inner surface of the cylinder

W

BONUS 82) Physics MC A charged conductor in electrostatic equilibrium has an electric potential of 12V everywhere on its surface. What is the value of the electric potential at a point inside the conductor? W. Equal to 12V X. Greater than 12V Y. Less than 12V Z. More information is needed

W

BONUS 89) Physics MC Which of the following statements is false concerning the cyclotron frequency of a particle accelerator? W. It proportional to the speed of the particles X. It proportional to the magnetic field applied by the particle accelerator Y. It is proportional to the charge of the particle Z. It is Inversely proportional to the mass of the particle

W

TOSSUP 121) Physics MC A massless, rigid, insulating rod of length R is attached at one end to a wall by a hinge so that it is free to swing vertically.The other end of the rod is attached to a sphere of mass m with charge -Q. If the rod and sphere are released in a horizontal position, which of the following electric fields is required to maintain the horizontal position of the rod? W. mg/Q, down X. mg/Q, up Y. mgQ/R, down Z. mgR/Q, up

W

TOSSUP 134) Physics MC A student is recreating Thomas Young's double slit experiment. He currently has the light sources 10 meters away from the screen and observes the interference pattern. If he brings the screen closer to the light sources, which of the following changes will he observe? W. The fringes will move closer together X. The fringes will move farther apart Y. The fringes will remain the same distance apart Z. It depends on the wavelength of light being used

W

TOSSUP 145) Physics MC Which of the following quantities remains constant of a relativistic particle within all inertial reference frames? W. Mass X. Velocity Y. Momentum Z. Energy

W

TOSSUP 162) Physics MC Which of the following correctly describes a magnifying glass? W. Single convex lens X. two convex lenses Y. Single concave lens Z. Two concave lenses

W

TOSSUP 163) Physics MC A material with a negative index of refraction has which of the following technologically significant implications: W. allowing imaging at resolutions below the diffraction limit of light X. superluminal light Y. improved spin coherence times Z. realization of high temperature superconductors

W

TOSSUP 24) Physics SA A cellphone emits an annoying noise with a frequency of 15kHz, and the user, frustrated, throws the phone forward at 30m/s. The perceived frequency of the user is closest to which of the following? W. 14kHz X. 15Khz Y. 16kHz Z. 17 kHz

W

TOSSUP 66) Physics SA Lightning is a phenomenon that can be explained by modeling the surface of the Earth and the atmosphere was which of the following electrical components? W. Capacitor X. Transistor Y. Resistor Z. Battery

W

BONUS 48) Physics MC Which of the following is equivalent to the speed of a mechanical wave? W. the square root of the elastic property of the medium divided by the inertial property of the medium X. the square root of the inertial property of the medium divided by the inertial property of the medium Y. The square of the elastic property of the medium divided by the inertial property of the medium Z. the square of the inertial property of the medium divided by the elastic property of the medium

W Week of 8/31

BONUS 74) Physics MC Which of the following correctly explains the difference between resistance and resistivity? W. Resistivity is a property of a substance, while resistance is a property of an object. X. Resistance is a property of a substance, while resistivity is a property of an object. Y. Resistivity is a fictitious property, while resistance is a real property. Z. There is no difference between resistance and resistivity.

W.

BONUS 153) Physics SA A particle can be modeled as the region of constructive interference among an infinite series of waves varying in frequency. What other name is given to this region of constructive interference?

Wave packet

TOSSUP 51) Physics SA Nails and push pins are examples of what simple machine?

Wedge

BONUS 105) Physics MC A circular loop of wire falls toward a wire carrying a current to the left. What is the direction of the induced current in the loop of wire? W. Clockwise X. Counterclockwise Y. Zero Z. Impossible to determine

X

BONUS 111) Physics MC The current flowing through a solenoid is decreasing at a rate of 4 amperes/second. The solenoid has 12 coils and is 144 cm long, with a cross sectional area of 5 cm2. Taking the permeability of free space to be 4pi x 10-7 T m/A, the induced-emf in volts through the solenoid is closest to which of the following? W. 8.0x10-8 X. 2.4x10-7 Y. 8.0x108 Z. 2.4x107

X

BONUS 125) Physics SA When light is dispersed through Newton's prism, which of the following colors of light has the greatest angle of refraction? W. Orange X. Blue Y. Yellow Z. Green

X

BONUS 136) Physics MC Which of the following is a possible value for the path difference between two sources of a double slit experiment that creates a dark fringe, given that the wavelength of light is 550 nanometers? W. 1650 X. 1375 Y. 2750 Z. 4400

X

BONUS 144) Physics MC If the ether, the theoretical medium through which light propagates, existed, what would Michelson and Morley have observed? W. The light traveling along one path would become red-shifted X. The fringes of an interference pattern would shift based on the orientation of the interferometer Y. There would be no path difference between the two light beams of the interferometer Z. The frequency of the rotating gear would only allow light to pass at specific orientations of the apparatus

X

BONUS 152) Physics MC The speed of an electron with mass 9.1x10^-31 kg and De Broglie wavelength of 10 picometers is closest to which of the following? W. One tenth the speed of light X. One fourth the speed of light Y. One half the speed of light Z. Two thirds the speed of light

X

BONUS 161) Physics MC A 200 meter spaceship moves past you with speed sqrt(2) c/2. At what length in meters do you measure the space ship? W. 100 X. 100 sqrt(2) Y. 200 Z. 400

X

BONUS 17) Physics MC Which of the following simple pendulums has the greatest period? W. Pendulum on Jupiter (where g=24.5m/s2) and a length of 10cm X. Pendulum on Mars (where g=3.7 m/s2) and a length of 10m Y. Pendulum on Venus (where g=8.87 m/s2) and a length of 5m Z. Pendulum on Earth (where g=9.8 m/s2) and a length of 100cm

X

BONUS 173) Physics SA A falling object reaches a terminal velocity V. If the mass of the object is doubled, by what factor must the terminal velocity be multiplied? W. 2 X. sqrt(2) Y. ½ sqrt(2) Z. Terminal velocity is unchanged

X

BONUS 174) Physics MC Which of the following most accurately describes Mie scattering? W. The incident particle is much smaller than the wavelength of the emitted radiation X. The incident particle is of comparable size to the wavelength of the emitted radiation Y. The incident particle is much larger than the wavelength of the emitted radiation Z. The incident particle can be of any size relative to the wavelength of the emitted radiation

X

BONUS 32) Physics MC Which of the following choices describes the most ideal fluid flow? W. Viscous and laminar X. Non-viscous and laminar Y. Viscous and turbulent Z. Non-viscous and turbulent

X

BONUS 5) Physics MC Kepler's Second law states which of the following? W. The square of a planet's orbital period is proportional to its semimajor axis cubed X. A line drawn from the sun to a planet sweeps out equal areas in equal time intervals Y. The planets move in elliptical orbits with the sun at one focus Z. An object of mass produces a gravitational field

X

BONUS 51) Physics MC A wheelbarrow is considered which of the following simple machines? W. First class lever X. Second class lever Y. Third class lever Z. Wedge

X

BONUS 68) Physics MC Two capacitors are connected in series and have an equivalent capacitance C. If an insulator with a dielectric constant k is added to each capacitor, what is the value of the new equivalent capacitance? W. k/C X. kC Y. C/k Z. C

X

BONUS 70) Physics MC What is the period of a simple pendulum of length 40 cm? W. pi/5 X. 2pi/5 Y. 2pi Z. 4pi

X

TOSSUP 100) Physics SA Which of the following objects can be described as a current-carrying wire wrapped around a ring of nonconductive material? W. Toroid X. Solenoid Y. RC Circuit Z. Battery

X

TOSSUP 104) Physics MC A circular loop of wire is held in a uniform magnetic field, with the plane of the loop perpendicular to the field lines. Which of the following will not cause a current to be induced in the loop? W. Crushing the loop X. Rotating the loop about an axis perpendicular to the field lines Y. Keeping the orientation of the loop fixed and moving it along the field lines Z. Pulling the loop out of the field

X

TOSSUP 111) Physics MC Which of the following circuit elements would make the best inductor? W. Capacitor X. Solenoid Y. Resistor Z. Transistor

X

TOSSUP 114) Physics SA Which of the following provides the best definition for inductance? W. A conductive coil's resistance to a change in emf X. A conductive coil's resistance to a change in current Y. A conductive coil's affinity for inducing emf Z. A conductive coil's affinity for inducing current

X

TOSSUP 136) Physics MC The gravitational potential energy between two planets A and B is 5E/2, where E is some energy constant. If the mass of A is doubled, and the mass of B is quadrupled, and the distance between the two planets is halved, what is the new value of their gravitational potential energy? W. 20E X. 40E Y. 80E Z. 160E

X

TOSSUP 140) Physics MC When two sources of light fulfill Rayleigh's criterion, they are said to be what? W. Well resolved X. Just resolved Y. Unresolved Z. Incoherent

X

TOSSUP 159) Physics MC A square loop of wire with a resistance of 2 ohms and a side length of 2 meters has a magnetic field of 5 teslas passing straight through it. If the field is uniformly reduced to zero in 10 seconds, what is the magnitude of the current generated in the loop in amperes? W. 0.5 X. 1 Y. 2 Z. 4

X

TOSSUP 176) Physics MC Which of the following quarks does NOT have an electric charge of +⅔? W. Up X. Strange Y. Charm Z. Top

X

TOSSUP 22) Physics MC Which of the following is true concerning the pressure amplitude of a sound wave? W. It is proportional to the square root of the displacement amplitude X. It is proportional to the displacement amplitude Y. it is proportional to the displacement amplitude squared Z. it is not proportional to the displacement amplitude

X

TOSSUP 26) Physics MC A hollow tube closed at one end is used to produce a sound. Which of the following best describes the sound wave at the open end of the tube? W. Pressure varies, while displacement is unchanging X. Displacement varies, while pressure is unchanging Y. Pressure and displacement both vary Z. Pressure and displacement are both unchanging

X

TOSSUP 3) Physics MC Which of the following statements is true concerning Earth's acceleration due to gravity g? W. g increases with increasing altitude X. g decreases with increasing altitude Y. g is unaffected by altitude Z. g fluctuates with increasing altitude

X

TOSSUP 45) Physics MC If the retarding force exerted on an oscillator is very small compared to the restoring force, the oscillator is said to be which of the following? W. Simple harmonic X. Underdamped Y. Critically Damped Z. Overdamped

X

TOSSUP 48) Physics MC A hollow tube closed at one end is used to produce a sound. Which of the following best describes the sound wave at the open end of the tube? W. Pressure varies, while displacement is unchanging X. Displacement varies, while pressure is unchanging Y. Pressure and displacement both vary Z. Pressure and displacement are both unchanging

X

TOSSUP 77) Physics MC Which of the following metals has zero resistance below a critical temperature? W. Gold X. Aluminum Y. Silver Z. Copper

X

TOSSUP 92) Physics MC Which of the following incorrectly compares conventional current and electric current? W. Conventional current and electric current flow in opposing directions. X. Conventional current and electric current flow in the same direction Y. Conventional current describes the flow of positive charges Z. Electric current describes the flow of negative charges

X

BONUS 24) Physics SA An 800g block is placed on a spring with a force constant of 0.4N/m. When set in simple harmonic motion, the system has a period (in seconds) closest to which of the following? W. 6 X. 9 Y. 12 Z. 15

X Week of 8/3

BONUS 133) Physics MC An object is placed 50cm away from a spherical mirror with focal length 20cm. The image produced is inverted and smaller relative to the object. Which of the following statements is true? W. The image is real and the mirror is convex X. The image is real and the mirror is concave Y. The image is virtual and the mirror is convex Z. The image is virtual and the mirror is concave

X Week of 12/21

BONUS 108) Physics MC Which of the following laws relates magnetic fields directly to electric current? W. Gauss's law X. Ampere's law Y. Faraday's law of induction Z. Gauss's law for magnetism

X.

BONUS 79) Physics MC Two resistors A and B arranged in parallel and have resistances R1 and R2 respectively are connected to a battery with voltage V. If the total current flowing through the circuit is I, which of the following expressions is equal to the current flowing only through A? W. I + V/R2 X. I - V/R2 Y. I Z. V/(R1 + R2)

X.

TOSSUP 78) Physics MC Which of the following rotating objects has the greatest moment of inertia? W. Solid sphere about its center X. Thin spherical shell about its center Y. Cylinder about its symmetry axis Z. Cylinder about its central diameter

X.

BONUS 114) Physics MC In an LC circuit, the maximum energy stored within the electric field of the capacitor is analogous to which of the quantities in a simple harmonic oscillator? W. The kinetic energy of a simple pendulum when the bob passes its equilibrium point X. The kinetic energy of block in a spring oscillator at the point midway between the amplitude and equilibrium point Y. The potential energy of a simple pendulum at the peak of its height Z. The potential energy of a block in a spring oscillator at the point midway between the amplitude and equilibrium point

Y

BONUS 141) Physics MC Which of the following is a direct conclusion of Bragg's law? W. The tangent of the polarizing angle of a light beam incident on a new medium is equal to the ratio between the indices of refraction of the two media. X. The polarizing angle of an incident beam of light results in a completely polarized reflected beam. Y. For an x-ray incident on a crystalline surface, the angle at which the ray is scattered is equal to the angle of incidence. Z. Light will split into two different rays when incident on a birefringent material.

Y

BONUS 28) Physics MC Which of the following statements is a direct result of Gauss's Law for Magnetism? W. A changing magnetic field induces an electric field around a wire X. A changing electric field induces a magnetic field around a wire Y. There are no magnetic monopoles Z. An electric current passing through a wire results in a magnetic field

Y

BONUS 80) Physics MC Which of the following best describes the voltage across three different resistors arranged in parallel? W. The resistor with the greatest resistance has the greatest voltage X. The resistor with the greatest current passing through it has the greatest voltage Y. All three resistors will have the same voltage Z. More information is needed

Y

BONUS 99) Physics MC Which of the following statements is true concerning magnetic fields? W. Magnetic fields are produced by stationary charges X. Magnetic field lines begin on positive charges and end on negative charges Y. Magnetic fields can exert forces on current-carrying wires Z. The magnitude of a magnetic field is independent of the current producing the field

Y

TOSSUP 109) Physics SA A uniform magnetic field is directed downwards. An electron traveling perpendicular to the magnetic field would take which of the following paths? W. Linear X. Parabolic Y. Circular Z. Elliptical

Y

TOSSUP 112) Physics SA A parallel plate capacitor currently has a capacitance 3C. The area of each plate is increased by a factor of 3 and the separation distance is decreased by a factor of 9. A dielectric of constant 4 is placed between the plates. What is the new value of the capacitance? W. 12C X. ¾ C Y. 4C Z. 4/3 C

Y

TOSSUP 113) Physics MC When the resistance of an RLC circuit is very large compared to its inductance and capacitance, the circuit models which of the following oscillators? W. Simple harmonic oscillator X. Underdamped oscillator Y. Overdamped oscillator Z. Critically damped oscillator

Y

TOSSUP 116) Physics MC Which of the following correctly describes the current flowing through an AC circuit? W. It is inversely proportional to the sine of the product of the angular frequency and time X. It is never equal to zero Y. It can be negative Z. It is out of phase with the voltage across a resistor

Y

TOSSUP 119) Physics MC What is the impedance of a series RLC circuit at resonance? W. Larger than the resistance X. Less than the resistance Y. Equal to the resistance Z. Impossible to determine

Y

TOSSUP 125) Physics MC Rainbows are created by which of the following phenomena? W. Refraction only X. Reflection only Y. Refraction and reflection Z. It depends on the rainbow

Y

TOSSUP 126) Physics SA A translucent object becomes invisible when immersed in an unknown fluid with index of refraction n. What must be the index of the object? W. Greater than n X. Less than n Y. Equal to n Z. There is no way to tell

Y

TOSSUP 131) Physics MC If an object is placed within the focal point of a converging lens, which of the following images would be produced? W. Real, inverted, and magnified X. Real, inverted, and diminished Y. Virtual, upright, and magnified Z. Virtual, upright, and diminished

Y

TOSSUP 138) Physics MC Newton's rings can be observed when what two types of surfaces come in contact? W. Plano-concave and plano-convex X. Flat and parabolic Y. Plano-convex and flat Z. Plano-concave and parabolic

Y

TOSSUP 154) Physics MC An electron and a proton moving at non-relativistic speeds have the same de Broglie wavelength. Which of the following quantities are also the same for the two particles? W. speed X. kinetic energy Y. momentum Z. frequency

Y

TOSSUP 174) Physics MC What type of inelastic scattering of a photon results in the transfer of vibrational energy to the incident particle? W. Compton X. Thomson Y. Raman Z. Mie

Y

TOSSUP 40) Physics MC Consider two gaussian surfaces, A and B, where B has twice the surface area as A. The point charges q1 and q2 have the same charge. Q1 is contained in A and q2 is contained in B. Which of the following correctly compares the electric flux passing through x and through y? W. The flux passing through A is greater than the flux passing through B X. The flux passing through B is greater than the flux passing through A Y. The flux passing through each surface is the same. Z. There is no flux passing through either surface.

Y

TOSSUP 57) Physics SA The electric potential energy of a two-charge system is U. If the distance between them is multiplied by a factor of 4, and each charge is multiplied by a factor of 2, what is the new value of the electric potential energy of the system? W. 4U X. 2U Y. U Z. U/2

Y

TOSSUP 60) Physics MC A charged conductor in electrostatic equilibrium has an electric potential of 4V everywhere on its surface. What is the value of the electric potential at a point inside the conductor? W. Less than 4V X. Greater than 4V Y. Equal to 4V Z. More information is needed

Y

TOSSUP 89) Physics SA A charged particle travels at an angle to a uniform magnetic field less than 90 degrees but greater than 0 degrees. Which of the following paths does the particle take? W. Linear X. Circular Y. Helical Z. Sinusoidal

Y

TOSSUP 95) Physics MC If the tension in a stretched string is multiplied by a factor of 16, the speed of the transverse wave is multiplied by what factor? W. 1/16 X. 1/4 Y. 4 Z. 16

Y

TOSSUP 99) Physics MC Wire A carries a current IA exerts a force F on wire B, which is parallel to wire A and carries a current IB that flows in the same direction as IA. If the current in each wire is doubled and the direction of IA is reversed, what will be the magnitude of the force exerted on wire B? W. 4F X. 2F Y. -4F Z. -2F

Y

BONUS 42) Physics MC Two solid cylinders A and B are held at the top of a ramp. Cylinder A is 10 times more massive than cylinder B and has twice the radius. Which of the following correctly predicts the outcome if both cylinders are released at the same time? ` W. Cylinder A will reach the bottom of the ramp first. X. Cylinder B will reach the bottom of the ramp first. Y. Both cylinders will reach the bottom of the ramp at the first time. Z. There is no way to tell which cylinder will reach the bottom first.

Y Week of 8/24

BONUS 121) Physics MC What is an object's average angular acceleration, in degrees per second per second, if it transited 72 degrees with an initial angular velocity of 8 degrees per second and a final angular velocity of 10 degrees per second? W. 1/12 X. 1/6 Y. 1/4 Z. 1/3

Y Week of 12/7

BONUS 60) Physics MC Which of the following is not a property of a conductor in electrostatic equilibrium? W. If it is irregularly shaped and charged, areas of greater radii of curvature have the least charge density X. The electric field outside a point on its surface is perpendicular to the surface Y. The electric field is zero inside if it is hollow, but not if it is solid Z. Any charge in the conductor is located on its surface

Y. Week of 9/15

TOSSUP 14) Physics MC A block of mass 5kg undergoes simple harmonic motion while attached to a spring with a force constant of 20N/m. Calculate the period, radians per second, of the system. W. ⅓ X. ¼ Y. ⅕ Z. ⅙

Y. 2/5pi

TOSSUP 122) Physics SA What was the first experiment to demonstrate the wave-nature of light?

Young's Double Slit Experiment

BONUS 10) Physics MC Which of the following correctly describes Torricelli's law? W. The pressure of a fluid decreases with increasing altitude X. The pressure of a fluid decreases as its speed increases Y. The pressure exerted by a fluid is equal at all points in the fluid Z. The speed of a fluid leaving an open tank through a hole at a certain height is equal to the final speed of a free-falling object dropped from the same height

Z

BONUS 113) Physics MC Two identical inductors of separate but also identical circuits are in close enough proximity to create mutual inductance L and induce an emf ε in each inductor. If the inductors are placed closer together, which of the following changes will be observed? W. L will decrease and epsilon will increase X. L will increase and epsilon will decrease Y. Both L and epsilon will decrease Z. Both L and epsilon will increase

Z

TOSSUP 38) Physics MC Which of the following represents the units of electric flux? W. newtons squared meters squared per coulomb X. newtons meters per coulomb Y. newtons squared meters per coulomb Z. newtons meters squared per coulomb

Z

BONUS 120) Physics MC Which of the following statements must be true concerning a series RLC circuit at resonance? W. The inductive reactance is greater than the capacitive reactance X. The impedance is greater than the resistance Y. The power factor is less than 1 Z. The phase angle is purely resistive

Z

BONUS 123) Physics MC A light beam travels through three different liquid media, with indices of refraction n1 =1.4, n2=1.6, and n3=1.33, with respective speeds v1, v2, and v3. Which of the following statements is true? W. v1 is less than v2 X. v2 is equal to v3 Y. v3 is less than v2 Z. v1 is less than v3

Z

BONUS 129) Physics MC An object placed in front of a spherical mirror creates an image that appears upright and magnified. Which of the following statements is true? W. The image is real and the mirror is convex X. The image is real and the mirror is concave Y. The image is virtual and the mirror is convex Z. The image is virtual and the mirror is concave

Z

BONUS 130) Physics SA Two point charges q1 and q2 are surrounded by a Gaussian surface. A third point charge q3 is located outside of the surface. The electric flux passing through the surface is proportional to which of the following? W. q1+q2+q3 X. q1*q2*q3 Y. q3 Z. q1+q2

Z

BONUS 164) Physics MC A lead sheet lies parallel to the X-Z plane. Striking the sheet with gamma rays causes the expulsion of electrons and positrons initially in the positive Y direction. Influenced by the presence of a uniform magnetic field, the electrons then move in a counter clockwise path along the X-Y plane. What is the direction of the magnetic field? W. Negative Y X. Positive X Y. Negative Z Z. Positive Z

Z

BONUS 22) Physics MC Amiel wishes to find the force constant of a spring. To accomplish this, he sets up an experiment in which he creates a simple harmonic oscillator using the spring and a block. He first measures the mass of the block, then after setting the oscillator in motion, he records the period for one oscillation. Which of the following expressions would he use to calculate the force constant of the spring? W. the mass divided by the square root of the period X. The square root of the mass divided by the square root of the period Y. The square of the period divided by the square of the mass Z. the mass divided by the square of the period

Z

BONUS 40) Physics MC Consider a gaussian surface . Two point charges Q1 and Q2 are contained within the surface and a third point charge Q3 is located outside the surface. The electric flux passing through the surface is proportional to which of the following? W. Q1 + Q2 + Q3 X. Q2 + Q3 Y. Q1 + Q3 Z. Q1 + Q2

Z

BONUS 57) Physics MC A uniform electric field moves a proton from point A to point B. Which of the following statements correctly describes how the electric potential energy of the proton-field system changes, and how the electric potential from point A to B changes. W. Electric potential energy increases, while electric potential decreases X. Electric potential energy decreases, while electric potential increases Y. Both increase Z. Both decrease

Z

BONUS 61) Physics MC Which of the following changes will not impact the capacitance of a parallel-plate capacitor? W. Decreasing the distance between the plates X. Increasing the area of the plates Y. Changing the type of insulator between the plates Z. Increasing the voltage of a battery attached to the plates

Z

BONUS 62) Physics SA A capacitor stores charge Q at a potential difference V. What happens if the voltage applied to the capacitor by a battery is doubled to 2V? W. The capacitance is halved and the charge remains constant X. The capacitance and charge are both halved Y. The capacitance and charge both double Z. The capacitance remains constant, while the charge is doubled

Z

BONUS 77) Physics MC Which of the following best describes how the resistance of a superconducting material changes as its temperature decreases? W. Decreases quadratically until it reaches zero X. Decreases quadratically, then suddenly drops to zero at the critical temperature Y. Decreases linearly until it reaches zero Z. Decreases linearly, then suddenly drops to zero at the critical temperature

Z

BONUS 81) Physics MC Two resistors A and B arranged in parallel with resistances R and 2R. What is the equivalent resistance of A and B? W. 3R/2 X. R/2 Y. R/3 Z. 2R/3

Z

BONUS 9) Physics MC Which of the following demonstrates the most ideal fluid flow? W. Viscous fluid and turbulent flow X. Viscous fluid and laminar flow Y. Nonviscous fluid and turbulent flow Z. Nonviscous fluid and laminar flow

Z

TOSSUP 103) Physics MC An electron is put through a potential of 1 gigavolt. How much energy, in electron volts, is transferred through this process? W. 1.6x10-10 X. 10-10 Y. 1.6x109 Z. 109

Z

TOSSUP 118) Physics MC Which of the following statements concerning components in an AC circuit is true? W. In a resistor, the current is out of phase with the voltage X. In an inductor, the current is in phase with the voltage Y. In a capacitor, the current is in phase with the voltage Z. None of the above choices are correct

Z

TOSSUP 128) Physics MC A mirror produces an image that is virtual and upright compared to the object. Which of the following describes the mirror? W. Flat X. Concave Y. Convex Z. More information is needed

Z

TOSSUP 143) Physics MC Which of the following correctly describes the second postulate of Einstein's special theory of relativity? W. Light is a wave that propagates through a medium known as the ether. X. The laws of physics must be the same in all inertial reference frames. Y. The laws of mechanics are invalid at speeds approaching that of light. Z. The speed of light in a vacuum is constant in all reference frames.

Z

TOSSUP 16) Physics MC A graph plots the force exerted on a particle against time. What quantity is represented by the area under this graph? W. Momentum X. Work Y. Acceleration Z. Impulse

Z

TOSSUP 20) Physics SA The power of a sinusoidal wave on a string is proportional to which of the following? W. The square of the speed X. The period Y. The amplitude Z. The square of the frequency

Z

TOSSUP 23) Physics MC The decibel increase in a sound that is 3 times as loud is closest to which of the following? W. 2 X. 3 Y. 4 Z. 5

Z

TOSSUP 54) Physics MC The potential energy of a two-charged particle system is U. If the charge of each particle is doubled, and the distance between them is halved, what is the new value of the potential energy of the system? W. U/4 X. 4U Y. U/8 Z. 8U

Z

TOSSUP 56) Physics MC In a certain region of space, the electric potential all along the x-axis is 4V. Given this information, the x-component of the electric field in this region must be equal to which of the following, N/C? W. 4 X. 2 Y. 2√3 Z. 0

Z

TOSSUP 64) Physics MC Which of the following arrangements of 3 parallel plate capacitors will yield the least equivalent capacitance W. Two capacitors in parallel, and a third in series with the first two X. Two capacitors in series, and a third in parallel with the first two Y. All three capacitors in parallel Z. All three capacitors in series

Z

TOSSUP 75) Physics SA The resistance of a copper wire is R. If the radius of the wire is doubled, what is the new value of the resistance of the wire? W. 2R X. R/2 Y. 4R Z. R/4

Z

TOSSUP 8) Physics MC What upward force exerted by a fluid results from the difference between pressure exerted on the top of an object and pressure exerted on the bottom of an object? W. Normal X. Lift Y. Drag Z. Buoyant

Z

TOSSUP 86) Physics SA An electron is traveling due north when a magnetic field is applied upwards. What cardinal direction must an electric field be applied in order to apply a force in the same direction as the magnetic field? W. North X. East Y. South Z. West

Z

TOSSUP 87) Physics MC Nathan observes a negatively charged particle moving upwards. He then applies a magnetic field directed towards him on the particle. Which of the following best describes the path of the particle that Nathan observes after the field is applied? W. Upwards line X. Downwards line Y. Clockwise circle Z. Counterclockwise circle

Z

TOSSUP 88) Physics MC In a velocity selector, the magnetic force applied to a charged particle moving at the right speed will cancel out the force due to the electric field. What is the Lorentz force applied to this particle? W. Equal to the magnetic force X. Equal to the electric force Y. Greater than the electric force but less than the magnetic force Z. Equal to 0

Z

BONUS 145) Physics MC Einstein's first postulate of general relativity states which of the following? W. A gravitational field is equivalent to an accelerated reference frame in a vacuum X. The speed of light is constant Y. Light bends when passing a star due to the curvature of spacetime Z. All laws of nature remain the same for all frames of reference

Z Week of 1/11

BONUS 90) Physics MC Which of the following statements correctly compares the forces applied to an electron by an electric field and a magnetic field? W. The electric force is perpendicular to the electric field, but the magnetic force is parallel to the magnetic field X. The magnetic field exerts a force on an electron at rest, but an electric field can only exert a force on an electron in motion Y. Both the electric force and magnetic force are dependent on the velocity of the electron Z. Both the electric force and magnetic force are dependent on the charge of the electron

Z Week of 10/19

BONUS 163) Physics MC Two parallel conducting plates, separated by a distance d, are connected to a battery. Which of the following is correct if the plate separation is doubled while the battery remains connected? W. The electric charge on the plates is doubled X. The potential difference between the plates is doubled Y. The potential difference between the plates is halved Z. The electric charge on the plates is halved

Z Week of 2/2

BONUS 169) Physics MC Which of the following is not true? W. Magnetic field associated with the current on a straight long wire is inversely proportional to the distance from the wire X. Kirchoff's first rule has to do with the accounting of total charges entering and leaving a junction per unit time Y. superconducting quantum interference devices, or SQUID's, are based on the Josephson Effect Z. resistance and voltage are the two most common parameters used to characterize a resistor

Z Week of 2/8

BONUS 18) Physics SA If the retarding force exerted on an oscillator is very large compared to the restoring force, the oscillator is said to be which of the following? W. Simple harmonic X. Underdamped Y. Critically Damped Z. Overdamped

Z Week of 7/27

BONUS 148) Physics MC A mass spectrometry experiment is performed with a magnetic field of 0.2 newtons per ampere meter and an electric field of 3 × 105 volts per meter. What is the speed of the ions? W. 6 meters per second X. 15 meters per second Y. 150 kilometers per second Z. 1.5 megameters per second

Z.

BONUS 88) Physics MC A mass spectrometry experiment is performed with a magnetic field of 0.4 newtons per ampere meter and an electric field of 2.5 × 105 volts per meter. What is the speed of the ions? W. 100 meters per second X. 625 meters per second Y. 6250 kilometers per second Z. 625 kilometers per second

Z.

TOSSUP 1) Physics MC A simple pendulum swings with a bob of mass 5kg and a length of 10cm. In terms of pi, and assuming g=10m/s2 what is the period of this pendulum? W. 4π X. 0.4π Y. 2π Z. 0.2π

Z.

TOSSUP 17) Physics MC A simple pendulum swings with a bob of mass 2kg and a length of 2.5cm. In terms of pi, and assuming g=10m/s2 what is the period of this pendulum? W. 2π X. 0.2π Y. π Z. 0.1π

Z.

TOSSUP 28) Physics MC The frequency of sound produced by a guitar string is not dependent on which of the following? W. Length of the string X. Tension of the string Y. Thickness of the string Z. Speed of sound

Z.

TOSSUP 147) Physics SA A closed sphere of radius 10 centimeters is immersed in a uniform electric field of 25 volts per meter. What is the electric flux through the sphere?

Zero

TOSSUP 76) Physics SA What term describes a collision in which the two objects stick together?'

perfectly inelastic

TOSSUP 124) Physics SA Light travels through air and enters a new media with index of refraction 2.0 at an incident angle of 30 degrees. What is the sine of the angle of refraction?

¼