PHYS 1000 Final Exam

What is the potential energy of a 40 kg box that is 6m above the ground? a. 2400 J b. 240 J c. 6 J d. 60 J

a. 2400 J

Suppose your car is on a 5% grade, meaning that for every 100 m you travel along the road you raise or lower only 5 m in elevation. If your car weighs 1500 kg, what is the component of its weight parallel to the road? (Hint: component of the weight parallel to road weight times the length ratio of opposite and hypotenuse of right angle triangle) a. 750 N b. 7500 N c. 1500 N d. 15000 N

a. 750 N

Why does a skater continue moving? a. A body in motion tends to remain in motion. b. A body in motions tends to accelerate in no external force acts upon it. motion. c. Because skaters mass increases adding to its inertia. d. Someone must be pushing the skater.

a. A body in motion tends to remain in motion. (Inertia)

Statement that best describes Newton's First Law is? a. An object that is free of external influences moves in a straight line and covers equal distances in equal times. b. An object that is free of external influences moves in a straight line and covers unequal distances in equal times. c. An object that is free of external influences moves in a curved line and covers equal distances in equal times. d. An object that is free of external influences moves in a straight line and covers equal distances in unequal times.

a. An object that is free of external influences moves in a straight line and covers equal distances in equal times.

If an electric field wave oscillates north and south, and the wave is travelling straight up, then what direction does the magnetic field wave oscillate? a. East and West. b. North and South. c. Up and Down. d. it does not oscillate: this situation is not possible.

a. East and West.

Suppose a soap box car is coasting on a track (no motor; no brake), moving from left to right, and part of the track is shown below. Friction /air resistance is present and the car comes to a stop at point E. What must be true of the car's motion at point A? a. Since friction is present it drains the system of energy. The car is stopped at point E so it must already be moving at point A. b. The car is stopped at point E because it climbed up the hill and lost its energy. c. The car is stopped at point E so it must have started moving at point A. d. The car is stopped at point E because someone applied the brakes.

a. Since friction is present it drains the system of energy. The car is stopped at point E so it must already be moving at point A.

A person is swinging a tin can around in a vertical circle at a constant speed. Please identify the places where can has maximum/ minimum total mechanical energy? a. The total mechanical energy is the sum of kinetic and potential energies, so the maximum is at the top and minimum at the bottom. b. The total mechanical energy is the sum of kinetic and potential energies, so the maximum is at the bottom and minimum at the top. c. The total mechanical energy remains conserved during the motion. d. The total mechanical energy is zero.

a. The total mechanical energy is the sum of kinetic and potential energies, so the maximum is at the top and minimum at the bottom.

A baseball player balances a bat on his finger; the bat is laying sideways and not standing on end. The bat will balance? a. at it's center of mass. b. at its middle. c. near the end farthest from the handle. d. near the end of its handle.

a. at it's center of mass.

Two permanent magnets? a. can attract or repel. b. always attract. c. always repel. d. never have stable force interactions.

a. can attract or repel.

In order to do a negative amount of work you must? a. exert a force and move opposite to the direction of the force. b. exert a force and move in the direction of the force. c. exert a force or move. d. change an object's position.

a. exert a force and move opposite to the direction of the force.

You have always wondered how much one of your friends weighs and devise a scheme to measure his weight secretly. You have him sit in a tubular steel chair. This popular style of chair consists of a single steel tube that is bent into a frame and that supports a seat bottom and a back. The empty chair weighs 10 pounds and is 30 inches tall. The frame acts as a spring and bends downward slightly when the chair is occupied. When you sit properly in the chair yourself, it bends downward 1 inch. When your friend sits properly in the chair, it bends downward 4 inches. From that observation, you know? a. four times as much as you do. b. 300 pounds. c. twice as much as you do. d. 150 pounds.

a. four times as much as you do.

Suppose you have two containers with liquid in them. One has a density of 760 kg/m^3 and the other has a density of 910 kg/m^3. If an object floats in one container and sinks in the other, the density of the object? a. has a value between 760 kg/m^3 and 910 kg/m^3. b. has a value less than 760 kg/m^3 or greater than 910 kg/m^3. c. must have a value equal to the average densities of two liquids. d. has a value equal to the difference in densities of two liquids.

a. has a value between 760 kg/m^3 and 910 kg/m^3.

A projectile is thrown directly upward and caught again. At the top of its path? a. its vertical velocity is zero. b. its horizontal velocity changes. c. it stops accelerating. d. its acceleration changes.

a. its vertical velocity is zero.

The acceleration due to gravity at the moon's surface is only about one-sixth that at the earth's surface. If you took a pendulum clock to the moon, the clock would run? a. slower than on earth. b. at the same rate as on earth, but with a larger swing. c. at the same rate as on earth, but with a smaller swing. d. faster than on earth.

a. slower than on earth.

You board an elevator with a large briefcase in your hand. Why does that briefcase suddenly feel particularly heavy when the elevator begins to move upward? a. the briefcase is accelerating upward, so the resulting apparent weight is downward. b. the briefcase is accelerating downward, so the resulting apparent weight is downward. c. the briefcase is accelerating upward, so the resulting apparent weight is upward. d. the briefcase is accelerating downward, so the resulting apparent weight is upward.

a. the briefcase is accelerating upward, so the resulting apparent weight is downward.

Cars are designed so that their bodies buckle (permanently deform) when they are in an accident. How does the buckling make the car safer by not allowing it to recoil (bounce) so much? a. the buckling dissipates the energy of the crash. b. the buckling stores energy. c. the buckling provides energy to the crashing objects. d. the bucking gives the car a high coefficient of restitution.

a. the buckling dissipates the energy of the crash.

Ice tea is often dispensed from a large jug with a faucet near the bottom. Why does the speed of tea flowing out of the faucet decrease as the jug empties? a. the gravitational potential energy due to the depth of the tea decreases as the height of the tea decreases. b. as the container empties the air inside expands to fill the volume of the container, creating a suction effect which slows the tea coming out. c. there is less tea, so it comes out slower. d. pressure decreases as the height of the tea decreases.

a. the gravitational potential energy due to the depth of the tea decreases as the height of the tea decreases.

You decide to attend an amusement park which has a ride where you are strapped into a chair which is in turn firmly attached to a plastic cable. You are released and you bounce up and down as a harmonic oscillator—a mass on the end of spring. Next in line is somebody who weighs twice as much as you do. When the heavier person goes on the ride, you notice that? a. the heavier rider will have a longer period than the lighter one. b. both of you will have the same period, regardless of how high you bounce. c. the two riders will have the same period, as long as the heights of their bounces are the same. d. the heavier rider will have a shorter period than the lighter one.

a. the heavier rider will have a longer period than the lighter one.

You are watching a semi truck bounce up and down on a spring. (Yep it's a toy!) At the topmost point in the truck's path? a. the truck's velocity is zero but its acceleration is downward. b. the truck's velocity is upward but its acceleration is downward. c. the truck's velocity is zero but its acceleration is upward. d. the truck's velocity is downward but its acceleration is upward.

a. the truck's velocity is zero but its acceleration is downward.

When you are moving on a level surface, without a push? a. you coast steady and straight. b. you change direction or speed. c. you change direction and your speed remains constant d. you move straight with non uniform speed.

a. you coast steady and straight.

Suppose you are changing a car tire and loosening a lug nut. You weigh 800N and stand on the end of a 2 m long wrench. How much torque do you exert on the lug nut? a. 1600 J b. 1600 N-m c. 800 N-m d. 2 N-m

b. 1600 N-m. (800 N * 2 m)

You and your family are on a trip to the local museum and you notice that in the aquarium there are four fish: fish 1 is floating, fish 2 is stationary 2m below the water's surface, fish 3 is stationary 4 m below the water's surface and fish 5 is on the sand at the bottom of the tank. Your Mom says that she'll buy you lunch if you rank the densities of the fish in order of increasing density, including the density of water in your ranking. Please select you ranking below. a. 1<water<2<3<4 b. 1<2=3=water<4 c. 4<3<2<water<1 d. 4<3=2=water<1

b. 1<2=3=water<4

A step-up transformer has 20 primary turns and 400 secondary turns. If the primary voltage is 120 V, what is the secondary voltage? a. 48000 V b. 2400 V c. 120 V d. 6.0 V

b. 2400 V

The coefficient of restitution for a particular ball is 0.7. If the ball rebounds from surface traveling at 60 m/s its collision speed was? a. 53 m/s b. 85.7 m/s c. 42 m/s d. 0

b. 85.7 m/s (60 m/s / .7)

Suppose you weigh 986 N, how much force does the Earth exert on you, if any? A. it cannot be determined B. 986 N C. 98.6N D. none

b. 986 N

Suppose you are driving your car down the highway at constant velocity. Which of the following are true? a. The car's momentum is constant but not its kinetic energy. b. Both the car's kinetic energy and momentum are constant. c. Neither the car's kinetic energy nor momentum are constant. d. The car's kinetic energy is constant but not its momentum.

b. Both the car's kinetic energy and momentum are constant.

As you jump across a small stream, does a horizontal force keep you moving forward? If so, what is the force? a. Yes, the horizontal force of the leap pushes you across the stream. b. No, there is no horizontal force. You continue to move forward because of inertia. c. Yes, there is a horizontal force. Inertia is that force. d. Yes, there is a horizontal force. Gravity is that force.

b. No, there is no horizontal force. You continue to move forward because of inertia.

Suppose you push a block up frictionless ramp instead of lifting directly to a certain height. What can you tell about the work done in both cases? a. Work done in pushing the block up a frictionless ramp is the more then the work done in lifting the block to the height of the ramp. b. Work done in pushing the block up a frictionless ramp is the same as lifting the block to the height of the ramp. c. Work done in pushing the block up a frictionless ramp is the less then the work done in lifting the block to the height of the ramp. d. No work is done in pushing the block up a frictionless ramp and lifting it directly up.

b. Work done in pushing the block up a frictionless ramp is the same as lifting the block to the height of the ramp.

The power supply for you answering machine is a small black cube that plugs directly into an electric outlet. The main component in this supply is a transformer and moderate current from the 120 volt power line flows through the primary coil of this transformer. If the transformer's primary coil has 20 times as many turns of wire in it as the secondary coil has, the the secondary coil provides? a. a larger voltage and a larger current than the primary. b. a smaller voltage and a larger current then the primary. c. a smaller voltage and a smaller current than the primary. d. a larger voltage and a smaller current than the primary

b. a smaller voltage and a larger current then the primary.

The reason for using a harmonic oscillator as a clock's time-keeper is so that the clock will keep accurate time even if the? a. frequency of the time-keeper's oscillation changes. b. amplitude of the time-keeper's oscillation changes. c. mass of the time-keeper's moving object changes. d. stiffness of the time-keeper's restoring force changes.

b. amplitude of the time-keeper's oscillation changes.

One warm spring day you and some friends go to the beach at a nearby lake. You are tossing a soft, almost fully inflated beach ball around when someone accidentally knocks it into the lake. Although it is a warm day, the water is still very cold so nobody wants to retrieve the ball. You notice that the ball seems to have deflated somewhat after sitting in the water for awhile. The contact with the cool water has cause the temperature of the air inside the ball to drop, resulting in? a. an increase in the pressure inside the ball. b. an increase in the density of the air inside the ball. c. a decrease in the pressure inside the ball. d. a decrease in the density of the air inside the ball.

b. an increase in the density of the air inside the ball.

You are riding a very fast Ferris Wheel so that you actually notice a variation in your apparent weight. Where is your apparent weight maximum? a. at the top. b. at the bottom. c. halfway up, going down. d. halfway up, going up.

b. at the bottom.

If you pull a permanent magnet rapidly away from a tank circuit, what is likely to happen in that circuit? a. charge will stop moving in the tank's capacitor and inductor. b. charge will oscillate in the tank's capacitor and inductor. c. charge will oscillate in the tank's capacitor and resistor. d. charge will stop moving in the tank's capacitor and resistor.

b. charge will oscillate in the tank's capacitor and inductor.

You are holding a drinking straw in your hand so that both its ends are open to the air. When you blow air across one of those ends, the air in that straw vibrates and straw emits a tone - its fundamental pitch. If you replace the air in the straw with carbon dioxide, which is more dense than air, the sound that the straw emits will? a. have the same pitch but will increase in volume. b. decrease in pitch (shift to a lower frequency). c. increase in pitch (shift to a high frequency). d. have the same pitch but will decrease in volume.

b. decrease in pitch (shift to a lower frequency).

What two properties of a material affect the speed of sound in the material? a. buoyant force and density. b. density and stiffness. c. specific heat and density. d. density and volume.

b. density and stiffness.

The principal advantage of sending electric power across long distances using low current is that? a. the charge can get from one point to another faster. b. electric power lost in the wires is greatly reduced. c. the transmission lines are less likely to get in the way than low voltage transmission lines - which are much closer to the ground. d. low current means low resistance in the lines.

b. electric power lost in the wires is greatly reduced.

Suppose you take off in a car with your physics book on top. If you are accelerating forward and the book rides with you, in what direction does friction act on the book? a. backwards. b. forwards. c. there is no friction since there is no sliding. d. the force of friction is infinite.

b. forwards.

An object pivoting around its center of mass is? a. moves clockwise. b. free of net torque. c. experiencing a torque about its center of mass. d. always in motion.

b. free of net torque.

Why can't an acrobat stop himself from spinning while he is in midair? a. his momentum is conserved. b. his angular momentum is conserved. c. his energy is conserved. d. actually, he can. All he has to do is straighten out his body.

b. his angular momentum is conserved.

Suppose you have two identical socks that repel each other with a certain force. Now you move them so they are three times as far apart as they were originally. Let the charges remain the same as the socks separate so that the force decreases as they are separated. In moving the socks apart what can be said about the potential energy of the system? a. it will increase because charges push the socks. b. it will decrease because negative work is required for the separation to increase. c. it will remain the same because charges remain the same. d. potential energy is zero.

b. it will decrease because negative work is required for the separation to increase.

A rocking chair has damaged the cord of your desk lamp. One of the two wires in the cord is completely cut in half and cannot carry any current. However, the other wire still connects the lam to the electrical socket. If you turn on the lamp? a. the normal amount of current will flow through both wires and the lamp will glow at its normal brightness. b. no current will flow through either wire and the lamp will remain dark. c. half the normal amount of current will flow through the one remaining wire and the lamp will glow at a quarter of its normal brightness. d. the normal amount of current will flow through the one remaining wire and the lamp will glow at half its normal brightness.

b. no current will flow through either wire and the lamp will remain dark.

Suppose that you had an electrically charged stick. If you divided the stick in half, each half would have half the original charge. If you split each of these halves, each piece would have a quarter of the original charge. Can you keep on dividing the charge in this manner forever? a. yes, because there is an infinite amount of charge. b. no, because charge is quantized. c. yea, because charges are created each time the stick is broken. d. no, because charges are destroyed each time the stick is broken.

b. no, because charge is quantized.

Is it possible to have two permanent magnets that always attract one another, regardless of their relative orientations? a. no, because the magneostatic forces between magnetic dipoles are independent of their relative orientations. b. no, because the magneostatic forces between magnetic dipoles depend on their relative orientations. c. yes, because the magneostatic forces between magnetic dipoles depend on their relative orientations. d. yes, because the magneostatic forces between magnetic dipoles are independent of their relative orientations.

b. no, because the magneostatic forces between magnetic dipoles depend on their relative orientations.

You go to an amusement park and, being in a physics class, you have connections. The management lets you stand on a scale as you ride a Ferris Wheel that rotates fairly rapidly. You will notice the highest reading on the scale? a. on the bottom, because the normal force upwards is weaker than your weight. b. on the bottom, because the normal force upwards is stronger than your weight. c. on top, because the normal force upwards is stronger than your weight. d. on top, because the normal force upwards is weaker than your weight.

b. on the bottom, because the normal force upwards is stronger than your weight.

You are a superb proposal writer and convince NASA to fund your taking a pendulum clock to Mars and studying how it runs. Compared to the time it should keep on Earth, the clock will run? a. faster. b. slower. c. at the same rate. d. backwards.

b. slower.

A horse does work on a cart it's pulling along a straight, level road at a constant speed. The horse is transferring energy to the cart, so why doesn't the cart go faster and faster? Where is the energy going? a. the energy is going to maintain the speed of the cart. b. the energy is converted to thermal energy as the wheels, axels and ground get warmer. c. the energy is converted to gravitational potential energy of the cart. d. the energy is lost.

b. the energy is converted to thermal energy as the wheels, axels and ground get warmer.

If you are pulling a sled along a level field at constant velocity, how does the force you are exerting on the sled compare to the force of sliding friction on its runners? a. the force you exert is greater than the sliding friction. b. the force you exert is equal to the sliding friction. c. the force you exert is less than the sliding friction. d. there is no set relationship between the forces.

b. the force you exert is equal to the sliding friction.

Do more magnetic flux lines begin or end on a button magnet, or are those numbers equal? a. more magnetic flux lines begin in a button magnet. b. the magnetic flux lines beginning and ending on a button magnet are equal. c. more magnetic flux lines end on a button magnet. d. there are no magnetic flux lines near a button magnet.

b. the magnetic flux lines beginning and ending on a button magnet are equal.

When you get new tires installed on your car the wheels are carefully balanced by placing small weights around the outside of the rim. If one of these weights fall off, your car may vibrate violently when you drive at certain speeds. This vibration occurs for speeds at which? a. the vibrating wheels acts like a harmonic oscillator. b. the rotation frequency of the off-balance wheel matches the frequency at which the car's suspension vibrates, allowing a resonant energy transfer between the two. c. the rotational kinetic energy of the wheel exactly matches the translational kinetic energy of the car, allowing a resonant energy transfer between the two. d. the amplitude of the vibrating wheel becomes large enough to overcome the inertia of the massive car.

b. the rotation frequency of the off-balance wheel matches the frequency at which the car's suspension vibrates, allowing a resonant energy transfer between the two.

For an object that sinks in a fluid? a. the weight of the fluid displaced is greater than the object's weight. b. the weight of fluid displaces is less than its weight. c. the weight of the fluid displaced equals the object's weight. d. the weight of the object becomes more than air.

b. the weight of fluid displaces is less than its weight.

You are traveling in a subway along a straight, level track at a constant velocity. If you close your eyes, you can't tell which way you're heading. Why not? a. you can't see where you're going. b. there is no feeling of acceleration. c. the vibration of the subway car masks the sensation of motion. d. you can't feel the wind inside a closed box.

b. there is no feeling of acceleration.

Some engineers have suggested that we can simulate gravity in outer space by having a circular rotating space station where persons feel an outward - directed fictitious force due to the rotation of the station. The reason they feel such a force is because? a. their velocity is toward the center of the space station and their inertia tends to keep them moving outward. b. they are accelerating toward the center of the space station and inertia tends to keep them moving sideways. c. the fictitious force is always in the direction of centripetal acceleration. d. their velocity is away from the center of the space station and their inertia tends to make them move in towards the center.

b. they are accelerating toward the center of the space station and inertia tends to keep them moving sideways.

When an airplane starts its propellers, they spin slowly at first and gradually pick up speed. Why does it take so long for them to reach their full rotational speed? a. friction slows it down. b. they have a large rotational mass. c. air resistance slows it down. d. they have a large mass.

b. they have a large rotational mass.

A typical commercial jet has a sharpened metal rod projecting backward from the tip of each wing. These two rods prevent the airplane from accumulating a large net electric charge during flight by? a. reducing sliding friction between the airplane and the passing air stream. b. transferring any charge on the plane to the air behind the plane. c. maintaining a steady electric current between the airplane's wings. d. generating high voltages while passing quickly through the earth's magnetic field.

b. transferring any charge on the plane to the air behind the plane.

During a football game the ball is kicked and it travels across the field. If the ball is kicked away from its center of mass it will? a. translate only. b. translate and rotate. c. rotate only. d. vibrate only.

b. translate and rotate.

The waves produced by plucking a guitar string are? a. Chiral. b. Transverse. c. Longitudinal. d. Toric.

b. transverse

A harmonic oscillator is an oscillator? a. which makes musical-like sound when it moves b. with a restoring force proportional to its displacement from equilibrium. c. with a restoring force proportional to its speed. d. which had constant kinetic energy when in motion.

b. with a restoring force proportional to its displacement from equilibrium.

When you're roller skating on level pavement, you can maintain your speed for a long time. But as soon as you start up a gradual hill, you begin to slow down. What slows you? a. friction. b. the force of your motion runs out. c. as you rise your gravitational potential energy increases so your kinetic energy decreases. d. the force of the slope on you.

c. as you rise your gravitational potential energy increases so your kinetic energy decreases.

Radio waves travel through empty space? a. faster than visible light. b. slower than visible light. c. at the speed of visible light. d. with only electric fields and not magnetic fields.

c. at the speed of visible light.

Suppose you go from the earth to a planet where the acceleration of gravity is 2.5 m/s^2. On the new planet your weight will be about? a. double. b. quadruple. c. be 1/4 its value on earth. d. the same as on earth.

c. be 1/4 its value on earth.

People falling from a high diving board feel weightless. Has gravity stopped exerting a force on them? If not, why don't they feel it? a. gravity still exerts a force on them, but they don't feel it because of air resistance. b. gravity no longer exerts a force on them while they're falling. c. gravity still exerts a for on them, but they don't feel it because their apparent weight has become zero. d. gravity still exerts a force on them, but they don't feel it because they're falling.

c. gravity still exerts a for on them, but they don't feel it because their apparent weight has become zero.

Suppose you are standing on a bathroom scale when you are flying in a jet airplane. For a moment the scale reads less than your actual weight. During that moment, it's exerting an upward force on you that is? a. equal to zero. b. greater than your weight. c. less than your weight. d. equal to your weight.

c. less than your weight.

What type of circuit is used to tune a radio? a. radio circuit. b. antenna circuit. c. tank circuit. d. inductance circuit.

c. tank circuit

You are riding in a hot air balloon. You have not used the burner for some time and the balloon begins to sink. Assuming that no air is allowed to leave or enter the balloon? a. the average density of the balloon became greater than the surrounding air and the buoyant force on the balloon remained constant. b. the average density of the balloon remained constant and the buoyant force on the balloon became less than its weight. c. the average density of the balloon became greater than the surrounding air and the buoyant force on the balloon became less than its weight. d. the balloon became heavier.

c. the average density of the balloon became greater than the surrounding air and the buoyant force on the balloon became less than its weight.

You're holding two balloons, one covered with positive charge and one with negative charge. Compare their voltages. a. voltages of the positive and negative balloons are equal. b. the positive balloon has a lower voltage then the negative one. c. the positive balloon has a higher voltage than the negative one. d. voltages of the positive and negative balloons are zero.

c. the positive balloon has a higher voltage than the negative one.

Stamping your feet cleans the snow off of them because? a. the vibration of the stamping lowers the friction between the snow and the foot. b. the heat generated by the stamping melts the snow somewhat. c. the snow on your feet has inertia. d. the force of stamping knocks it off.

c. the snow on your feet has inertia.

According to Ohm's law? a. voltage drop is inversely proportional to current. b. voltage drop is proportional to power consumed. c. voltage drop is proportional to electric resistance. d. voltage drop is inversely proportional to electric resistance.

c. voltage drop is proportional to electric resistance. (voltage drop=current*electrical resistance)

Cities have to use water towers to supply water to low lying areas because? a. water pressure at the top of the tower is transmitted through the water pipes. b. the water tower has a vault of air that is pressurized. c. water in the tower has higher potential energy. d. the water became heavier.

c. water in the tower has higher potential energy.

The strings of a guitar vibrate at different frequencies. They have different thicknesses because? a. a thinner string has more tension than a thicker string and vibrates at a higher frequency. b. a thicker string has more tension than a thinner string and vibrates at a higher frequency. c. a thinner, less massive string vibrates less frequently than a thicker string of the same length and tension. d. a thicker, more massive string vibrates at a lower frequency than a thinner string of the same length and tension.

d. a thicker, more massive string vibrates at a lower frequency than a thinner string of the same length and tension.

When you drop a strong magnet through the center of a copper pipe, the magnet? a. descends slowly because it is attracted to the magnetic copper metal. b. descends rapidly because its motion causes currents to flow in the pipe and those currents attract the magnet. c. falls at the usual rate because copper metal is nonmagnetic. d. descends slowly because its motion causes currents to flow in the pipa and those currents repel the magnet.

d. descends slowly because its motion causes currents to flow in the pipe and those currents repel the magnet.

What does the period of a pendulum depend on? a. mass and gravity. b. mass, length and gravity. c. length and mass. d. length and gravity.

d. length and gravity.

A tank circuit of an inductor and a capacitor. Give a simple explanation for why the magnetic field in the inductor is strongest at the moment the separated charge in the capacitor reaches zero? a. the moment the energy of the inductor is minimum and the energy of the capacitor is maximum. b. the moment the energy of the inductor is minimum and the energy of the capacitor is zero. c. the moment the energy of the inductor is maximum and the energy of the capacitor is maximum. d. the moment the energy of the inductor is maximum and the energy of the capacitor is zero.

d. the moment the energy of the inductor is maximum and the energy of the capacitor is zero.