Quiz about PHYSICS ACP REVIEW 2ND SEMESTER

Question 1

The momentum of an object depends upon the object's ___________&_____________.

Accepted Answer

mass and veloctiy

Answer

size and shape

Answer

mass and speed

Answer

mass and energy

Question 2

The equation to calculate momentum is

Accepted Answer

p=mv

Answer

p=1/2mv2

Answer

p=mgh

Answer

p=mg

Question 3

Determine the momentum of 1000-kg car moving southward at 20 m/s.........

Accepted Answer

20000 Kg * m/s south

Answer

20000 N

Answer

20000 Joules

Answer

10000 kg * m/s south

Question 4

A 9300 kg railroad car traveling at a velocity of 5 m/s strikes a second boxcar that weighs 5000 kg at rest. At what speed will the second boxcar move?

Accepted Answer

9.3 m/s

Answer

18.6 m/s

Answer

7.5 m/s

Answer

1.86 m/s

Question 5

The impulse is ______ the change in momentum

Accepted Answer

Equal to

Answer

Greater than

Answer

less than

Answer

always double

Question 6

When the speed of an object is doubled, its momentum

Accepted Answer

doubles

Answer

remains unchanged in accord with the conservation of momentum.

Answer

quadruples

Answer

decreases

Question 7

Which object listed below has the greatest momentum?

Accepted Answer

A 0.4 kg object rolling at 2 m/s.

Answer

A 0.05 kg object rolling at 0.2 m/s.

Answer

A 0.15 kg object rolling at 2 m/s.

Answer

A 0.15 kg object rolling at 1 m/s

Question 8

A boy kicks a football with a force of 20 N, the time the force acts for is 0.3 s.
Calculate the impulse on the ball.

Accepted Answer

6 N.s

Answer

1 N.s

Answer

66 N.s

Answer

None of these

Question 9

The impulse-momentum theorem states that

Accepted Answer

the impulse on an object is equal to the change in momentum it causes

Answer

the force on a moving object is equal to the magnitude of the impulse.

Answer

the impulse on an object is greater than the change in momentum it causes

Answer

the impulse on an object is less than the change in momentum it causes

Question 10

What is the frequency of this wave?

Accepted Answer

5 Hertz

Answer

3 Hertz

Answer

4 Hertz

Answer

6 Hertz

Question 11

When wavelength increases, what happens to the frequency?

Accepted Answer

it decreases

Answer

it increases

Answer

it stays the same

Question 12

You can't hear sounds in outer space because there is no

Accepted Answer

medium

Answer

light

Answer

energy

Answer

heat

Question 13

Which color has the highest frequency?

Accepted Answer

violet

Answer

blue

Answer

yellow

Answer

orange

Question 14

A student placed a pencil in a cup of water.  The pencil appears broken because light-

Accepted Answer

bends when it passes through water

Answer

always travels in a straight line

Answer

makes the water in the glass evaporate

Answer

reflects the pencil on the water's surface

Question 15

When a wave strikes and object and bounces off. (example echo)

Accepted Answer

reflection

Answer

medium

Answer

refraction

Answer

interference

Question 16

Which of the following represents refraction?

Accepted Answer

D

Answer

A

Answer

B

Answer

C

Question 17

The diagram shows a series of wave fronts approaching an opening in a barrier. Point P is located on the opposite side of the barrier. The wave fronts reach point P as a result of

Accepted Answer

diffraction

Answer

resonance

Answer

refraction

Answer

reflection

Question 18

A converging lens is also known as a ____ lens.

Accepted Answer

convex

Answer

concave

Answer

double

Answer

refracted

Question 19

When an object is placed between the focal point and the convex lens, the image produced is ___.

Accepted Answer

virtual, enlarged, and upright

Answer

real, reduced, and inverted

Answer

real, enlarged, and inverted

Answer

virtual, reduced, and upright

Question 20

When an object is placed on the focal point in front of a convex lens, the image produced is ___.

Accepted Answer

There is no image

Answer

real, reduced, and inverted

Answer

real, enlarged, and inverted

Answer

real, true, and inverted

Question 21

This image is.....

Accepted Answer

inverted and smaller

Answer

inverted and larger

Answer

not inverted and smaller

Answer

not inverted and larger

Question 22

What is the ray of light that strikes the surface.

Accepted Answer

Incident ray

Answer

reflected ray

Answer

normal ray

Answer

normal

Question 23

An image that you can see when you look into a mirror, but does not really exist is called which of the following?

Accepted Answer

Virtual Image

Answer

Real Image

Answer

Fake Image

Answer

Digital Image

Question 24

The picture shows an electrical circuit. This circuit is a series circuit because:

Accepted Answer

The same current flows through all three light bulbs.

Answer

It has 3 light bulbs.

Answer

It uses a single battery.

Answer

The electrical current is divided between the three light bulbs.

Question 25

As resistors are added in series to a circuit, the total resistance will...

Accepted Answer

increase

Answer

decrease

Answer

stay the same

Question 26

As the resistance of a circuit increases, the current will...

Accepted Answer

decrease

Answer

increase

Answer

stay the same

Question 27

What will happen if one light bulb is removed from this circuit?

Accepted Answer

The other bulbs will stay on

Answer

The other bulbs will go out.

Answer

The other bulbs will get dimmer.

Answer

The battery will become stronger.

Question 28

If lamp 1 is unscrewed from its holder, what will happen to lamp 2?

Accepted Answer

It will go out

Answer

It will get brighter

Answer

It will stay the same brightness

Answer

Nothing will happen

Question 29

What size resistor would produce a 3 Amp current flow with a 12 Volt battery

Accepted Answer

4 Ohms

Answer

1 Ohm

Answer

3 Ohms

Answer

12 Ohms

Question 30

What is Resistance?

Accepted Answer

The ability to reduce the flow of electrons

Answer

The flow of electrons

Answer

Electric potential difference

Answer

A battery

Question 31

Current times Resistance equals
(I X R)

Accepted Answer

Voltage

Answer

Power

Answer

Amperage

Answer

Ohm

Question 32

This circuit has a 24 volt battery and the resistor is 8 ohms. How many amps are running through the circuit?

Accepted Answer

3 Amps

Answer

192 Amps

Answer

2 Amps

Answer

4 Amps

Question 33

A particle of light is called a...

Accepted Answer

Photon

Answer

Photoelectron

Answer

Proton

Answer

Electron

Question 34

The only way to increase the number of photoelectrons emitted is by increasing the _________ of the light

Accepted Answer

Intensity

Answer

Wavelength

Answer

Frequency

Answer

Energy

Question 35

What color of light has the greatest energy per photon?

Accepted Answer

Violet

Answer

Red

Answer

Green

Answer

Blue

Question 36

Which of the following best describes the nature of light?

Accepted Answer

Light is both a wave and a particle.

Answer

Light is a wave.

Answer

Light is a particle.

Answer

Light is neither a wave nor a particle.

Question 37

Emission of light from an atom occurs when an electron

Accepted Answer

drops from a higher to a lower energy level.

Answer

jumps from a lower to a higher energy level.

Answer

moves within its atomic orbital.

Answer

falls into the nucleus.

Question 38

What is the transfer of electricity in a generator?

Accepted Answer

Mechanical to Electrical

Answer

Physical to Potential

Answer

Electrical to Mechanical

Answer

Yogurt to Light

Question 39

What is the transfer of electricity in a motor?

Accepted Answer

electrical to mechanical

Answer

chemical to mechanical

Answer

mechanical to electrical

Answer

physical to potential

Question 40

Generators are devices that convert _____ energy into _____ energy.

Accepted Answer

mechanical; electrical

Answer

chemical; mechanical

Answer

electrical; mechanical

Answer

potential; kinetic

Question 41

Looking at the drawing. If you tried to move these 2 magnets closer together, what would you feel?

Accepted Answer

Pull Closer together

Answer

Push Away

Answer

No Force

Answer

Let the Force be with YOU

Question 42

The area around a magnet which is affected by its magnetism is the

Accepted Answer

magnetic field

Answer

magnetic curtain

Answer

magnetic gas

Answer

sum of 5 + 3

Question 43

If 2 objects collide and stick together, what will happen to their velocities?

Accepted Answer

velocities will decrease

Answer

velocities will increase

Answer

velocities will stay the same

Answer

none of the above

Question 44

When the speed of an object is doubled, its momentum

Accepted Answer

doubles

Answer

remains unchanged in accord with the conservation of momentum.

Answer

quadruples

Answer

decreases

Question 45

In this type of collision, objects tend to "stick" together.

Accepted Answer

inelastic

Answer

elastic

Answer

They "stick" together in both types of collisions

Question 46

A 10kg toy truck moves at 5m/s East. It collides and bounces off of a 5kg toy car moving 10 m/s moving west. Which equation would you use to solve for the final velocity of the car?

Accepted Answer

m₁v_1i+m₂v_2i=m₁v_1f+m₂v_2f

Answer

(m₁+m₂₎v_i=m₁v_1f+m₂v_2f

Answer

m₁v_1i+m₂v₂_i=(m₁+m₂)v_f

Question 47

Determine the momentum of 1,000-kg car moving northward at 20 m/s.

Accepted Answer

20,000 kg * m/s north

Answer

20,000 N

Answer

20,000 Joules

Answer

20,000 Kg * m/s

Question 48

Which figure represents the path light takes through a converging lens?

Accepted Answer

Option C is correct

Answer

A.

Answer

B.

Answer

D.

Question 49

The splitting of a nucleus into smaller nuclei is

Accepted Answer

fission

Answer

fusion

Answer

half-life

Answer

gamma radiation

Question 50

How do nuclear power-plants work?

Accepted Answer

Fission

Answer

Fusion

Answer

Half-life

Answer

Fusion or fission

Question 51

This is an example of...

Accepted Answer

Fission  reaction

Answer

Fusion reaction

Answer

Decomposition reaction

Answer

Decay

Question 52

This is an example of ---

Accepted Answer

Nuclear Fusion

Answer

Radioactive Decay

Answer

Nuclear Fission

Answer

Fossil fuel reaction

PHYSICS ACP REVIEW 2ND SEMESTER

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