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A truly educated person is knowledgeable about

- science - the arts - religion (all of the above)

To see his full height in a mirror, Blinky Bill of height 1.0 meter requires a mirror that is at least

0.50 m tall

One watt of power is equivalent to

1 joule per sound

A vibrating bob at the end of a vertical spring completes a cycle every 2 s. Its period is

1 seconds

A heavy stone is launched straight upward at 100 m/s. If air resistance can be neglected, the time to reach its maximum height is

10 seconds

A 12-volt battery supplies to each coulomb of charge

12 joules

A block of ice slides with a kinetic energy of 40 J. If it slides at twice the speed, its kinetic energy is

160 J

If she exerts 6 N across a distance of 2 m in 3 s she'll deliver a power of

4 W

In lifting a 5000-N piano via a pulley system, every 1 m of rope pulled down raises the piano by 0.1 m. Ideally, this indicates that the force needed to lift the piano is

500 N

A scientific hypothesis is

An educated guess

The first to be credited for Earth circling the Sun was

Copernicus

The scientist to be arrested for his views was

Galileo

Newton's second law focuses on

acceleration

Science, art, and religion need not contradict one another because

all three involve different domains

If the mass of Phil Physiker doubles, his weight

also doubles

Which has more mass?

an automobile battery

Which moving object has the greater momentum?

any of these depending on speed

A cannonball fired from a cannon begins to fall

as soon as it leaves the barrel

The least amount of energy needed to produce forced vibrations in an object occurs

at its natural frequency

The vibrations of a transverse wave move in a direction

at right angles to the direction of wave travel

Mass is a more fundamental quantity than weight because mass

both of these

A heavy and a light ball are dropped at the same time from a high tower. The ball to reach the ground first, assuming no air resistance, will be the

both together

A skydiver who falls at constant velocity is in a state of

dynamic equilibrium

A positive ion has too few

electrons

A stone whirled at the end of a rope follows a circular path. If the rope breaks, the stone tends to

follow a straight-line path

Different colors of light correspond to different light

frequencies

When a bowling ball slows as it rolls along an alley, we know that

friction acts on the ball

The scientific method is most effective in

gaining, organizing, and applying new knowledge

By Newton's third law, if action is the force the string pulls on the can to make it follow a circular path, the reaction force is then

idk

A crate sliding down an incline at a constant velocity is

in dynamic equilibrium

If an object has no acceleration of any kind, then we can say for certain that it is

in mechanical equilibrium

When you push a brick with twice as much force, the acceleration of the brick

increase

Current in a conductor can be increased by

increasing the voltage across it and reducing its resistance

Magnetic poles cannot be

isolated

Whereas potential energy is measured in joules, electric potential is measure in

joules/coulomb and volts

Pseudoscience is a field of

junk science

Infrasonic sound waves have relatively

long wavelengths and low frequencies

Surrounding a moving electron is

magnetic and electric field

A kilogram is a measure of

mass

An electron beam that is directed through a magnetic field

may be deflected and may experience a force

You are weightless when you

momentarily step off a curb lack a support force orbit in today's space stations

A Cadillac and a Mini Cooper roll down a hill at the same speed. While rolling the heavier Cadillac has greater

momentum

Any object that moves has

momentum

A moving vehicle has

momentum kinetic energy speed

A school bus on a highway brakes to a stop. More braking force is required if the bus has

more mass more momentum less stopping distance all of the above

Aristotle asserted that motion was characterized by

natural and violent motion

Which law most underlies the impulse-momentum relationship?

newtons second law

Scientists who falsify experimental results or data are generally given

no second chance

Which of these hockey pucks has zero acceleration?

one at rest one moving at constant velocity one in mechanical equilibrium

Light from a candle has a certain brightness 1 m away. At 2 m away its brightness is

one- quarter as much

Electric field lines about a tiny charged particle extend

outward when the charge is positive

An atom's nucleus has what kind of charge?

positive

We define inertia to be a

property of matter

When Galileo dropped balls from the Leaning Tower of Pisa, he

refuted Aristotle's teachings

You toss a ball upward. After it leaves your hand, the force of gravity on it

remains constant

The net force acting on an object is

the combination of all forces acting on it

Which is gravitationally attracted to Earth?

the moon and apple

A push of 1 N accelerates a 1-kg mass at 1 m/s2. A push of 2 N accelerates of a 2-kg mass

the same

The frequency of electromagnetic waves and the frequency of the vibrating electrons that produce them are normally

the same

A 10-kg brick and a 1-kg book are dropped in a vacuum. Acceleration of the 10-kg brick is

the same as that of the 1-kg book

In the spirit of science, science-oriented people must be willing to consider ideas

they dislike

Ultraviolet light that shines on a pane of transparent glass

transforms to thermal energy

If a pulse of laser light shines on the Moon and bounces back to Earth, it completes a round-trip in about. Earth and the Moon are separated by 3.84 X 10^8 m

two and a half seconds

If the masses of two planetary bodies doubles, and the distance between them decreases by half, the force between them would be

unchanged

Cave people discovered gravity. Isaac Newton discovered that gravity is

universal

A wiggle in time is a

vibration

When Nellie Newton steps off a stool she is momentarily

weightless

The source of electrons that comprise a shock is

your own body

The person most likely to fool you is

yourself

The sum of the forces that act on any object moving at constant velocity is

zero


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