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AP Physics Exam review

Total questions: 100

Worksheet time: 3hrs 48mins

Name
Class
Date
1.
A  car starts from rest and after  7 seconds it is moving at 42  m/s. What is the car’s acceleration?
a)
0.17
b)
1.67
c)
6
d)
7
2.
How long will it take a running horse to travel 260 m and attain a speed of 12 m/s from rest?
a)
1200 seconds
b)
1.2 hours
c)
43 Hours
d)
43 minutes
3.
A car is traveling at 21.0 m/s. It slows to a stop at a constant rate over 5.00 s. How far does the car travel during those 5.00 seconds before it stops? 
a)
4.20 m
b)
52.5 m
c)
105 m
d)
158 m
4.
The SI unit for length or distance is
a)
foot (ft)
b)
inch (in)
c)
mile (mi)
d)
meter (m)
5.
Describe the motion
a)
Slow to fast;   Negative direction
b)
Fast to slow;   Negative direction
c)
Fast to slow;   Positive direction
d)
Slow to fast;   Positive direction
6.
The equation for finding average acceleration for straight-line motion is
a)
(Vi-Vf) x Time
b)
(Vf-Vi) / Time
c)
Vi+Vf+time
d)
Vi+Vf-time
7.
Problem #3
A car is traveling at a velocity of 35.0 miles per hour.  The car runs off a cliff that has an unknown height.  The car 'lands' 50.0 meters from the base of the cliff.

How long would it take the car to 'land' after exiting the rim of the cliff?
a)
1.4 seconds
b)
3.2 seconds
c)
4.8 seconds
d)
0.7 seconds
8.
At what time did runner A pass runner B?
a)
0 seconds
b)
1 second
c)
2 seconds
d)
3 seconds
9.
At 60 seconds, how far had this object traveled? 
a)
0 m
b)
10 m
c)
20 m
d)
40 m
10.
Which runner is faster?
a)
red line runner
b)
blue line runner
11.
The Earth pulls downward on a pingpong ball with a force  of 1N. If this is the "action" force, what is the "reaction" force?
a)
The ground exerts a force of 1N on the ping pong ball
b)
The ping pong ball exerts a force of 1 N on the Earth
c)
The ping pong ball pushes down on the earth with a force of 1N
d)
The is no reaction force when a gravitational force is involved
12.

Camille launches has a catapult that changes the velocity of a ball (m= 2 kg) from 0 to 10 m/s in one sec. What is the average force that is exerted on the ball during launch?

a)

20 N

b)

5 N

c)

8 N

d)

0.2 N

13.

Which of the following statements is true about the image above?

a)

The accelerations of the blocks will vary according to their mass

b)

The net force acting on each block is the same

c)

The blocks will experience the same acceleration

d)

The 3m box will eat the 2m and the m boxes

14.

Which of the following is not true about the system?

a)

T3 is equal to the scalar sum of the magnitudes of T2 and T1

b)

T3 is equal in magnitude to Fg

c)

The x- components of the T1 and T2 and equivalent but in opposite directions

d)

The system is in equilibrium.

15.
What is the coefficient of static friction if it takes 44 N of force to move a box that weighs 86 N? 
a)
0.78
b)
0.51
c)
0.78 N
d)
0.58 N
16.
A 80 kg skydiver is free falling at a constant velocity of 19 m/s. What is the net (total) force acting on her?
a)
1,520 N
b)
0 N
c)
4.21 N
d)
Not enough information to answer
17.
Assuming both objects are at rest, which object is more massive? M1 or M2?
a)
M1 is more massive
b)
M2 is more massive
c)
both M1 and M2 are the same mass
18.
A magician pulls a tablecloth out from under dishes and glasses on a table without disturbing them.
a)
Newton's 1st Law
b)
Newton's 2nd Law
c)
Newton's 3rd Law
19.

A 31-kg mass is accelerated by a net force of 81 N. What is the acceleration of the mass?

a)

2.6 m/s2

b)

10 m/s2

c)

0.39 m/s2

d)

0.25 m/s2

e)

4 m/s2

20.

How much does a 29-kg weigh on the surface of the moon (where the acceleration of gravity is 1/6th that of Earth)?

a)

47.4 N

b)

284.2 N

c)

19.6 N

d)

290 N

e)

4.8 N

21.
Calculate the velocity of an object moved around a circle with a radius of 1.65 m and an acceleration of 3.5 m/s2.
a)
2.4 m/s
b)
3.6 m/s
c)
3.9 m/s
d)
4.2 m/s
22.
Which of the following depict the speed of the blowing ball?
a)
A
b)
B
c)
C
d)
D
23.
Calculate the centripetal force required to make a 5 kg ball move 4 m/s in a circle with a radius of 2 m.
a)
10 N
b)
20 N
c)
30 N
d)
40  N
24.
Centripetal acceleration acts towards the ___________ of the circular motion
a)
center
b)
circumference
c)
outside
d)
radius
25.
Bruno the bat flies at a speed of 0.5 m/s in circle of radius 1 m. What is his acceleration?
a)
0.25 ms-2
b)
0.5 ms-2
c)
1 ms-2
d)
2 ms-2
26.
Which represents the acceleration of the ball?
a)
A
b)
B
c)
C
d)
D
27.
What is the force that causes centripetal acceleration when a car goes around a curve?
a)
Friction
b)
Gravity 
c)
Normal
d)
Tension
28.
The velocity is always _____ to the line of a circle. 
a)
outwards
b)
towards the center
c)
tangent
d)
faster
29.
You are moving a ball in a circle using 72 N of centripetal force. What would the force be if you doubled the radius of the circle.
a)
18 N
b)
36 N 
c)
72 N
d)
144 N
30.
A test car moves at a constant speed around a circular track.  If the car is 48.2 m from the track's center and has a centripetal acceleration of 8.05 m/s2, what is the car's tangential speed?
a)
19.7 m/s
b)
5.99 m/s
c)
0.17 m/s
d)
388.01 m/s
31.
Kinetic Energy is defined as
a)
Energy stored due to its location
b)
Energy of motion
c)
Energy stored in the bonds of molecules
d)
Heat energy
32.
A 5 kg ball is lifted 12 m above the ground. It's gravitational potential energy is
a)
60 J
b)
600 J
c)
17 J
d)
2.4 J
33.
The law of conservation states that
a)
every action has an equal and opposite reaction
b)
all matter has thermal energy
c)
energy cannot be created or destroyed, only changes form
d)
heat moves from an object of higher temperature to an object of lower temperature
34.
The ability to do work is called
a)
energy
b)
thermal
c)
kinetic
d)
potential
35.
Mechanical energy can be either potential or ________.
a)
Motion
b)
Kinetic
c)
Chemical
d)
Light
36.
Which position has the most kinetic energy?
a)
A
b)
G
c)
D
d)
B
37.
Which position has the most potential energy?
a)
A
b)
G
c)
C
d)
D
38.
A 40 kg crate is picked up by a crane to a height of 50m. The crate falls. What is the velocity of the crate just before it hits the ground?
a)
2000 Joules
b)
19,600 Joules
c)
19,600 m/s
d)
31.3 m/s
39.
When a 65 kg skydiver jumps from a plane, her speed steadily increases until air resistance provides a force that balances the force due to free fall.  How fast is the skydiver falling if her kinetic energy at the moment is 704000J?
a)
21661.53 m/s
b)
147.17 m/s
c)
22880.0 km/s
d)
10830.76 m/s
40.

1. A ball has a 17 J of kinetic energy and its mechanical energy is 25 J. If the ball has a mass of 3.2 kg, what is its height above the ground?

a)

0.26 m

b)

0.52 m

c)

5.2 m

d)

25 m

41.

What are the two factors that affect the momentum of an object?

a)

speed and velocity

b)

time and mass

c)

distance and displacement

d)

mass and velocity

42.

Momentum is a ____________________ quantity

a)

science

b)

scalar

c)

vector

d)

energy

43.

T/F: A big truck will always have more momentum than a small car.

a)

True

b)

False

44.

A 9300 kg railroad car traveling at a velocity of 5 m/s strikes a second boxcar that weighs 5000 kg at rest. The railroad car is brought to a sudden stop while the boxcar moves away from the collision. At what speed will the second boxcar move?

a)

18.6 m/s

b)

9.3 m/s

c)

7.5 m/s

d)

1.86 m/s

45.

What would happen to the momentum of a toy car if the mass is doubled and the velocity decreases by 1/2?

a)

It decreases by 1/4

b)

It decreases by 1/2

c)

Stays the same

d)

It is doubled

46.

A track athlete throws a discus that has a momentum of 42kg*m/s into a field with a velocity of 21 m/s. What is the mass of the discus?

a)

1 kg

b)

2 kg

c)

3 kg

d)

4 kg

47.
A runner has a momentum of 670 kg m/s and is traveling at a velocity of 9 m/s. What is his mass?
a)
74.4 kg
b)
6030 kg
c)
0.0134 kg
d)
679 kg
48.

The Law of Conservation of Momentum states:

a)

The total momentum before a collision is equal to the total momentum after a collision.

b)

The total momentum before a collision is greater than the total momentum after a collision.

c)

The total momentum before a collision is less than the total momentum after a collision.

d)

The total momentum before a collision is not related to the total momentum after a collision.

49.

Two objects have the same momentum. Do they necessarily have the same kinetic energy?

a)

yes

b)

no

c)

Not enough information to answer this question

50.
Two football players with mass 75 kg and 100 kg run directly toward each other with speeds of 6 m/s and 8 m/s respectively. If they grab each other as they collide, the combined speed of the two players just after the collision would be:
a)
2 m/s 
b)
3.4 m/s 
c)
4.6 m/s 
d)
7.1 m/s
51.
Two pendulums are in simple harmonic motion.  Pendulum A is longer than pendulum B.  Pendulum A has a larger mass than B.  The period of pendulum A is
a)
longer than pendulum B
b)
shorter than pendulum B
c)
the same as pendulum B
d)
not enough information
52.

The pictured tube is 1.2 meters long. What is the wavelength of the wave inside?

a)

0.6 m

b)

1.2 m

c)

1.6 m

53.

A pendulum's period is initially t. Changes are made to the system so that the new period is 2t. What may have been changed?

a)

The length of the pendulum was increased by a factor of 2.

b)

The pendulum was moved to a planet with 2 times the mass of Earth.

c)

The length of the pendulum was increased by a factor of 4.

d)

The pendulum was moved to a planet with 4 times the mass of earth.

54.
A 5 kg ball hangs from a 10 m string. The ball is swung horizontally outward 90º from its equilibrium position. Assuming the system behaves as a simple pendulum, find the maximum speed of the ball during its swing.
a)
50 m/s
b)
14 m/s
c)
10 m/s
d)
5 m/s
55.
A sonar device bounces waves with a frequency of 16 Hz off of an object 2 km away and receives an echo in 0.2 s. What is the wavelength of the waves used?
a)
6.25 m
b)
625 m
c)
1000 m
d)
62500 m
56.
Which of the following characteristics of a sound wave determines how loud it is?
a)
frequency
b)
wavelength
c)
speed
d)
amplitude
57.

A pipe in a calliope is closed at one end and is 0.5 m long. The calliope uses hot air so that the speed of sound in the tube is 400 m/s. What is the fundamental frequency of the calliope tube?

a)

100 Hz

b)

200 Hz

c)

300 Hz

d)

400 Hz

58.

A wave carries...?

a)

energy only

b)

matter only

c)

nothing. The matter carries the energy

d)

neither

59.
What is the measure of how many waves pass a point in a certain amount of time?
a)
frequency
b)
wavelength
c)
midpoint
d)
crest and trough
60.
If a force of 20 N stretches a spring 0.5 m, what is the spring constant?
a)
10 N/m
b)
20 N/m
c)
40 N/cm
d)
40 N/m
61.
The rotational equivalent to d (distance), v (velocity) and a (acceleration) are?
a)
m, m/s, m/s2
b)
θ, ω, α
c)
x, x/t, alphaα
d)
μ, Σ, τ
62.
How do you get the maximum torque?
a)
longer lever arm and less force at an acute angle
b)
shorter lever arm and less force perpendicularly
c)
shorter lever arm and more force perpendicularly
d)
longer lever arm and more force perpendicularly
63.
A cylinder (I=1/2mr2) of mass M and radius r rolls with a linear velocity v.  What is its angular momentum?
a)
Mv
b)
Mv/r
c)
Mrv/2
d)
Mrv
64.
When a rigid object rotates about a fixed axis, what is true about all the points in the object? 
a)
They all have the same tangential acceleration.
b)
They all have the same angular speed.
c)
They all have the same tangential speed.
d)
They all have the same radial acceleration.
65.
The figure shows scale drawings of four objects, each of the same mass and uniform thickness, with the mass distributed uniformly. Which one has the greatest moment of inertia when rotated about an axis through point P?
a)
A
b)
B
c)
C
d)
D
66.
A person sits on a freely spinning lab stool that has no friction in its axle. When this person extends her arms,
a)
angular momentum is conserved, her moment of inertia increases and her angular speed decreases.
b)
angular momentum is conserved, her moment of inertia decreases and her angular speed increases.
c)
angular momentum increases, her moment of inertia increases and her angular speed increases.
d)
angular momentum decreases, her moment of inertia increases and her angular speed remains the same.
67.
A 0.12-m-radius grinding wheel takes 5.5 s to speed up from 2.0 rad/s to 11.0 rad/s. What is the wheel's average angular acceleration?
a)
9.6 rad/s/s
b)
4.8 rad/s/s
c)
3.1 rad/s/s
d)
1.6 rad/s/s
68.
Which has more rotational inertia? (consider all objects have equal radius)
a)
Hollow sphere
b)
solid sphere
c)
disk
d)
cylinder
69.
In order to do a lot of flips an Olympic diver would want:
a)
A high rotational inertia
b)
A low rotational inertia
c)
A low linear acceleration
d)
A low angular velocity
70.
What happens to his rotational inertia when a figure skater brings in his arms?
a)
Increase his rotational inertia
b)
Decrease his rotational inertia
c)
has no affect
71.

If you rub a balloon with a piece of wool cloth, the balloon will:

a)

Be attracted to the wool cloth

b)

Be repelled by the wool cloth

c)

Have no interaction with the wool cloth

d)

Not enough information is given to determine what will happen

72.

If you rub two balloons with the same piece of wool cloth, the balloons will:

a)

Be attracted to each other.

b)

Repel each other.

c)

Have no interaction.

d)

Not enough information is given to determine what will happen.

73.

Two pieces of transparent tape are pulled off a wooden tabletop. When they are brought near each other, they:

a)

Attract each other because they were prepared the same way.

b)

Repel each other because they were prepared the same way.

c)

Have no interaction.

74.

Which of the following statements is NOT correct about the magnitude of the electric force between two charged objects?

a)

It increases if one of the charges increases.

b)

It increases if the distance between the charges increases.

c)

It increases if both of the charges increase.

d)

It increases if the distance between the charges decreases.

75.

Two electrons are 1 nm apart. Estimate and compare the gravitational force between the electrons to the electric force between the electrons.

a)

The gravitational force is much stronger.

b)

The two forces are about the same magnitude.

c)

The electric force is much stronger.

d)

There is no gravitational force between them.

76.

The gravitational force be confidently ignored when dealing with atomic size particles because:

a)

It is many orders of magnitude greater than the electric force.

b)

It is many orders of magnitude smaller than the electric force.

c)

There is no gravitational attraction between atomic masses.

77.

A proton is projected in the +x direction into a region of a uniform electric field E = (-6.00 x 105) N/C, also in the +x direction at t = 0. The proton travels 7.00 cm as it comes to rest. Determine the initial speed of the proton.

a)

2.84×106 ms2.84\times10^6\ \frac{m}{s}

b)

8.06×1014 ms8.06\times10^{14}\ \frac{m}{s}

c)

2.84×107 ms2.84\times10^7\ \frac{m}{s}

d)

8.06×1012 ms8.06\times10^{12}\ \frac{m}{s}

78.

How much energy is used by a 2-Ω resistor connected to a 9-V battery for 2.5 minutes?

a)

675 J

b)

103,680 J

c)

6,075 J

d)

11.25 J

e)

101.25 J

79.

What is the effect of some materials holding electrons more loosely than other objects.

a)

Electrons move from one object to another.

b)

Electric force is applied to other charged objects.

c)

An unbalanced charge forms on the object.

d)

A flash of light, called lightning, occurs.

80.

What is the effect of an electric field surrounding every charged object.

a)

Electrons move from one object to another.

b)

Electric force is applied to other charged objects.

c)

An unbalanced charge forms on the object.

d)

A flash of light, called lightning, occurs.

81.

The defining word equation for the Volt

a)

energy per unit charge

b)

rate of flow of charge

c)

work per unit time

d)

product of electrical resistance and current

82.

What does the electronic schematic symbol shown represent?

a)

light bulb

b)

cell

c)

battery

d)

resistor

83.

What does the electronic schematic symbol shown represent?

a)

an AC current source

b)

a DC current source

c)

an ammeter

d)

a voltmeter

84.

What does the electronic schematic symbol shown represent?

a)

an AC current source

b)

a DC current source

c)

an ammeter

d)

a voltmeter

85.

What does the electronic schematic symbol shown represent?

a)

Wire

b)

Resistor

c)

Battery

d)

Switch

86.

What is the total resistance in the circuit?

a)

10 ohms

b)

6 ohms

c)

4 ohms

d)

2.4 ohms

87.

What is the total current through the battery?

a)

0.75 A

b)

1.5 A

c)

3 A

d)

0.33 A

88.

What is the current through the 2 ohm resistor?

a)

0.75 A

b)

1.5 A

c)

3 A

d)

0.33 A

89.

What is the current through the 4 ohm resistor?

a)

1.5 A

b)

3 A

c)

2 A

d)

0.75 A

90.

Solve for total circuit resistance

a)

140 Ohms

b)

75 Ohms

c)

90 Ohms

d)

65 ohms

91.
What kind of wave is pictured below?
a)
compressional wave
b)
transverse wave
c)
sound wave
d)
mechanical wave
92.
The units for frequency are measured in _____________.
a)
hertz
b)
seconds
c)
m/s
d)
m
93.
What property of this wave is represented by the letter "A"
a)
amplitude
b)
crest
c)
trough
d)
wavelength
94.
The highest point on a wave is:
a)
the crest
b)
the trough
c)
the top
d)
the coast 
95.
The lowest point on a wave is the:
a)
Amplitude
b)
Crest
c)
Trough
d)
Wavelength
96.
The type of waves that require medium to pass:
a)
Mechanical Waves
b)
Electromagnetic Waves
97.
What is the speed of a sound wave that has a frequency of 250 hertz and a wavelength of 8 meters? 
a)
31 m/s
b)
250 m/s
c)
2000 m/s
d)
5280 m/s
98.
A wave in which the particles of the medium move perpendicularly to the direction the wave is traveling
a)
A. surface wave
b)
B. transverse wave
c)
C. electromagnetic  wave
d)
D. longitudinal wave
99.
How many waves are in this wave chain?
a)
6
b)
3
c)
4
d)
5
100.
 A wave has frequency of 50 Hz and a wavelength of 10 m. What is the speed of the wave?
a)
500 m/s
b)
50 m/s
c)
5 m/s
d)
0.5 m/s

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