Name
Regents Physics
Physics Midterm Review - Multiple Choice Problems
1. A car traveling on a straight road at 15.0 meters
per second accelerates uniformly to a speed of
21.0 meters per second in 12.0 seconds. The total
distance traveled by the car in this 12.0-second
time interval is
A) 36.0 m
C) 216 m
B) 180. m
D) 252 m
2. A baseball player runs 27.4 meters from the
batter's box to first base, overruns first base by
3.0 meters, and then returns to first base.
Compared to the total distance traveled by the
player, the magnitude of the player's total
displacement from the batter's box is
A) 3.0 m shorter
C) 3.0 m longer
B) 6.0 m shorter
D) 6.0 m longer
3. A blinking light of constant period is situated on
a lab cart. Which diagram best represents a
photograph of the light as the cart moves with
constant velocity?
A)
B)
C)
6. An object accelerates uniformly from rest to a
speed of 50. meters per second in 5.0 seconds.
The average speed of the object during the
5.0-second interval is
A) 5.0 m/s
C) 25 m/s
B) 10. m/s
D) 50. m/s
7. A child riding a bicycle at 15 meters per second
decelerates at the rate of 3.0 meters per second2
for 4.0 seconds. What is the child's speed at the
end of the 4.0 seconds?
A) 12 m/s
C) 3.0 m/s
B) 27 m/s
D) 7.0 m/s
8. A rock is dropped from a bridge. What happens
to the magnitude of the acceleration and the
speed of the rock as it falls? [Neglect friction.]
A) Both acceleration and speed increase.
B) Both acceleration and speed remain the
same.
C) Acceleration increases and speed decreases.
D) Acceleration remains the same and speed
increases.
9. Base your answer to the following question on the
D)
diagram below which shows a 1-kilogram mass
and a 2-kilogram mass being dropped from a
4. Base your answer to the following question on the
building 100 meters high.
information below.
A 1,000-kilogram car traveling with a
velocity of +20. meters per second decelerates
uniformly at –5.0 meters per second2 until it
comes to rest.
What is the total distance the car travels as it
decelerates to rest?
A) 10. m
C) 40. m
B) 20. m
D) 80. m
5. Starting from rest, an object rolls freely down an
incline that is 10 meters long in 2 seconds. The
acceleration of the object is approximately
A) 5 m/sec
C) 10 m/sec
B) 5 m/sec 2
D) 10 m/sec 2
Halfway down, the acceleration is
A) greater for the 1-kilogram mass
B) greater for the 2-kilogram mass
C) the same for both masses
10. A ball is thrown vertically upward with an
initial velocity of 29.4 meters per second. What
is the maximum height reached by the ball?
[Neglect friction.]
A) 14.7 m
C) 44.1 m
14. The graph below represents the displacement of
an object moving in a straight line as a function
of time.
B) 29.4 m
D) 88.1 m
11. A rock falls from rest a vertical distance of 0.72
meter to the surface of a planet in 0.63 second.
The magnitude of the acceleration due to
gravity on the planet is
A) 1.l m/s2
C) 3.6 m/s 2
B) 2.3 m/s 2
D) 9.8 m/s 2
12. As shown in the diagram below, a student
standing on the roof of a 50.0-meter-high
building kicks a stone at a horizontal speed of
4.00 meters per second.
What was the total displacement traveled by the
object during the 10.0-second time interval?
A) 0 m
C) 16 m
B) 8 m
D) 24 m
15. Which graph best represents the motion of a
block accelerating uniformly down an inclined
plane?
A)
B)
How much time is required for the stone to
reach the level ground below? [Neglect
friction.]
A) 3.19 s
C) 10.2 s
B) 5.10 s
D) 12.5 s
13. A ball is thrown horizontally at a speed of 24
meters per second from the top of a cliff. If the
ball hits the ground 4.0 seconds later,
approximately how high is the cliff?
A) 6.0 m
C) 78 m
C)
B) 39 m
D) 96 m
D)
16. The graph below represents the relationship
between speed and time for an object moving
along a straight line.
What is the total distance traveled by the object
during the first 4 seconds?
A) 5 m
C) 40 m
B) 20 m
D) 80 m
17. The graph below shows the relationship
between speed and time for two objects, A and
B. Compared with the acceleration of object B,
the acceleration of object A is
19. A 5-newton ball and a 10-newton ball are
released simultaneously from a point 50 meters
above the surface of the Earth. Neglecting air
resistance, which statement is true?
A) The 5-N ball will have a greater
acceleration than the 10-N ball.
B) The 10-N ball will have a greater
acceleration than the 5-N ball.
C) At the end of 3 seconds of free-fall, the
10-N ball will have a greater momentum
than the 5-N ball.
D) At the end of 3 seconds of free-fall, the
5-N ball will have a greater momentum
than the 10-N ball.
20. A force of 6.0 newtons changes the momentum
of a moving object by 3.0 kilogram•meters per
second. How long did the force act on the mass?
A) 1.0 s
C) 0.25 s
21. A 5.0-kilogram cart moving with a velocity of
4.0 meters per second is brought to a stop in 2.0
seconds. The magnitude of the average force
used to stop the cart is
A) 20. N
C) 10. N
A)
B)
C)
D)
one-third as great
twice as great
three times as great
the same
B) 2.0 s
D) 0.50 s
B) 2.0 N
D) 4.0 N
22. When a 1.0-kilogram cart moving with a speed
of 0.50 meter per second on a horizontal surface
collides with a second 1.0-kilogram cart initially
at rest, the carts lock together. What is the speed
of the combined carts after the collision?
[Neglect friction.]
A) 1.0 m/s
C) 0.25 m/s
B) 0.50 m/s
D) 0 m/s
23. A 750-newton person stands in an elevator that
18. In the diagram below, a 10-kilogram ball is fired
is accelerating upward. The upward force of the
with a velocity of 500 meters per second from a
elevator floor on the person must be
1,000-kilogram cannon. What is the recoil
A) equal to 0 N
velocity of the cannon?
B) less than 750 N
C) equal to 750 N
D) greater than 750 N
A) 5 m/s
C) 10 m/s
B) 2 m/s
D) 500 m/s
24. On a small planet, an astronaut uses a vertical
force of 175 newtons to lift an 87.5-kilogram
boulder at constant velocity to a height of 0.350
meter above the planet's surface. What is the
magnitude of the acceleration due to gravity on
the surface of the planet?
A) 0.500 N/kg
C) 9.81 N/kg
B) 2.00 N/kg
D) 61.3 N/kg
25. Four forces act concurrently on a block on a
horizontal surface as shown in the diagram
below.
28. What is the magnitude of the gravitational force
between two 5.0-kilogram masses separated by
a distance of 5.0 meters?
A) 5.0 × 10 0 N
C) 6.7 × 10 –11 N
B) 3.3 × 10
D) 1.3 × 10
–10
–11
N
N
29. As a meteor moves from a distance of 16 Earth
radii to a distance of 2 Earth radii from the
center of Earth, the magnitude of the
gravitational force between the meteor and
Earth becomes
A)
B) 8 times as great
as great
C) 64 times as great D) 4 times as great
30. The diagram below shows a 2.0-kilogram object
accelerating at 5.0 meters per second 2 on a
rough horizontal surface.
As a result of these forces, the block
A)
B)
C)
D)
moves at constant speed to the right
moves at constant speed to the left
accelerate to the right
accelerate to the left
26. Two forces, F 1 and F 2, are applied to a block on
a frictionless, horizontal surface as shown
below.
What is the magnitude of the frictional force Ff
acting on the object?
A) 5.0 N
C) 20. N
31. An 8.0-newton wooden block slides across a
horizontal wooden floor at constant velocity.
What is the magnitude of the force of kinetic
friction between the block and the floor?
A) 2.4 N
C) 8.0 N
If the magnitude of the block's acceleration is
2.0 meters per second 2, what is the mass of the
block?
A) 1 kg B) 5 kg C) 6 kg D) 7 kg
27. A student pulls a 60.-newton sled with a
force having a magnitude of 20. newtons.
What is the magnitude of the force that the sled
exerts on the student?
A) 20. N
C) 60. N
B) 40. N
D) 80. N
B) 10. N
D) 40. N
B) 3.4 N
D) 27 N
32. Two forces act concurrently on an object on a horizontal, frictionless surface, as shown in the
diagram below.
What additional force, when applied to the object, will establish equilibrium?
A) 16 N toward the right
C) 4 N toward the right
B) 16 N toward the left
D) 4 N toward the left
33. Which term identifies a scalar quantity?
A) displacement
C) velocity
B) momentum
D) time
34. Which is a vector quantity?
A) distance
C) power
B) speed
D) force
35. The vector diagram below represents the
horizontal component, FH, and the vertical
component, FV, of a 24-newton force acting at
35° above the horizontal.
36. A shopping cart slows as it moves along a level
floor. Which statement describes the energies of
the cart?
A) The kinetic energy increases and the
gravitational potential energy remains the
same.
B) The kinetic energy increases and the
gravitational potential energy decreases.
C) The kinetic energy decreases and the
gravitational potential energy remains the
same.
D) The kinetic energy decreases and the
gravitational potential energy increases.
37. If the speed of a moving object is doubled, the
kinetic energy of the object is
A) halved
C) unchanged
What are the magnitudes of the horizontal and
vertical components?
A)
B)
C)
D)
FH = 3.5 N and FV = 4.9 N
FH = 4.9 N and FV = 3.5 N
FH = 14 N and FV = 20. N
FH = 20. N and FV = 14 N
B) doubled
D) quadrupled
38. A 1.00-kilogram ball is dropped from the top of
a building. Just before striking the ground, the
ball’s speed is 12.0 meters per second. What
was the ball’s gravitational potential energy,
relative to the ground, at the instant it was
dropped? [Neglect friction.]
A) 6.00 J
C) 72.0 J
B) 24.0 J
D) 144 J
39. Which statement describes the kinetic energy
and total mechanical energy of a block as it is
pulled at constant speed up an incline?
A) Kinetic energy decreases and total
mechanical energy increases.
B) Kinetic energy decreases and total
mechanical energy remains the same.
C) Kinetic energy remains the same and total
mechanical energy increases.
D) Kinetic energy remains the same and total
mechanical energy remains the same.
40. A spring gains 2.34 joules of elastic potential
energy as it is compressed 0.250 meter from its
equilibrium position. What is the spring
constant of this spring?
A) 9.36 N/m
C) 37.4 N/m
B) 18.7 N/m
D) 74.9 N/m
41. A student performed a laboratory investigation
to determine the spring constant of a spring. The
force applied to the spring was varied and the
resulting elongation of the spring was measured.
The student graphed the data collected, as
shown below.
43. The diagram below shows a 50.-kilogram crate
on a frictionless plane at angle to the
horizontal. The crate is pushed at constant speed
up the incline from point A to point B by force
F.
If angle were increased, what would be the
effect on the magnitude of force F and the total
work W done on the crate as it is moved from A
to B?
A) W would remain the same and the
magnitude of F would decrease.
B) W would remain the same and the
magnitude of F would increase.
C) W would increase and the magnitude of F
would decrease.
D) W would increase and the magnitude of F
would increase.
44. A 500.-newton girl lifts a 10.-newton box
vertically upward a distance of 0.50 meter. The
work done on the box is
A) 5.0 J
C) 250 J
According to the student's graph, what is the
spring constant for this spring?
A) 0.050 m/N
C) 13 N• m
B) 9.8 N/kg
D) 20. N/m
42. How much work is required to lift a 10.-newton
weight from 4.0 meters to 40. meters above the
surface of Earth?
A) 2.5 J
C) 3.6 ×10 2 J
B) 3.6 J
D) 4.0 ×10 2 J
B) 50. J
D) 2500 J
45. A student pulls a box across a horizontal floor at
a constant speed of 4.0 meters per second by
exerting a constant horizontal force of 45
Newtons. Approximately how much work does
the student do against friction in moving the
box 5.5 meters across the floor?
A) 45 J
C) 250 J
B) 180 J
D) 740 J
46. If a motor lifts a 400.-kilogram mass a vertical
distance of 10. meters in 8.0 seconds, the
minimum power generated by the motor is
A) 3.2 10 2 W
C) 4.9 10 3 W
B) 5.0 10 2 W
D) 3.2 10 4 W
47. A baseball bat strikes a ball with an average
force of
Newtons. If the bat stays in
contact with the ball for a distance of
meter, what kinetic energy will the
ball acquire from the bat?
A)
C)
B)
D)
48. A pendulum is made from a 7.50-kilogram mass
attached to a rope connected to the ceiling of a
gymnasium. The mass is pushed to the side until
it is at position A, 1.5 meters higher than its
equilibrium position. After it is released from
rest at position A, the pendulum moves freely
back and forth between positions A and B, as
shown in the diagram below.
What is the total amount of kinetic energy that
the mass has as it swings freely through its
equilibrium position? [Neglect friction.]
A) 11 J
C) 110 J
B) 94 J
D) 920 J
49. As a block slides across a table, its speed
decreases while its temperature increases.
Which two changes occur in the block’s energy
as it slides?
A) a decrease in kinetic energy and an
increase in internal energy
B) an increase in kinetic energy and a
decrease in internal energy
C) a decrease in both kinetic energy and
internal energy
D) an increase in both kinetic energy and
internal energy
50. Base your answer to the following question on
the diagram below. The diagram represents a 1.00 kilogram object being held at rest on a
frictionless incline.
As the object slides down the incline, the sum of the gravitational potential energy and kinetic
energy of the object will
A) decrease
C) remain the same
B) increase
51. Base your answer to the following question on
the information and diagram below.
A ball is thrown horizontally with an
initial velocity of 20.0 meters per second
from the top of a tower 60.0 meters high.
52. A red ball and a green ball are simultaneously
thrown horizontally from the same height. The
red ball has an initial speed of 40. meters per
second and the green ball has an initial speed of
20. meters per second. Compared to the time it
takes the red ball to reach the ground, the time it
takes the green ball to reach the ground will be
A)
B)
C)
D)
What is the horizontal velocity of the ball just
before it reaches the ground? [Neglect air
resistance.]
A) 9.81 m/s
C) 34.3 m/s
B) 20.0 m/s
D) 68.6 m/s
the same
twice as much
half as much
four times as much
53. Base your answer to the following question on the information and diagram below
A golf ball leaves a golf club with an initial velocity of 40.0 meters per second at an angle
of 40º with the horizontal.
What is the total horizontal distance traveled by the golf ball during the first 2.10 seconds of
its flight?
A) 100. m
B) 76.6 m
C) 64.3 m
54. An archer uses a bow to fire two similar arrows
with the same string force. One arrow is fired at
an angle of 60.° with the horizontal, and the
other is fired at an angle of 45° with the
horizontal. Compared to the arrow fired at 60.°,
the arrow fired at 45° has a
A) longer flight time and longer horizontal
range
B) longer flight time and shorter horizontal
range
C) shorter flight time and longer horizontal
range
D) shorter flight time and shorter horizontal
range
55. A basketball player jumped straight up to grab a
rebound. If she was in the air for 0.80 second,
how high did she jump?
A) 0.50 m
C) 1.2 m
B) 0.78 m
D) 3.1 m
D) 40.0 m
56. A projectile is fired from a gun near the surface
of Earth. The initial velocity of the projectile
has a vertical component of 98 meters per
second and a horizontal component of 49 meters
per second. How long will it take the projectile
to reach the highest point in its path?
A) 5.0 s
C) 20. s
B) 10. s
D) 100. s
57. An unbalanced force of 40. newtons keeps a
5.0-kilogram object traveling in a circle of
radius 2.0 meters. What is the speed of the
object?
A) 8.0 m/s
C) 16 m/s
B) 2.0 m/s
D) 4.0 m/s
58. A ball of mass M at the end of a string is
swinging in a horizontal circular path of radius
R at constant speed V. Which combination of
changes would require the greatest increase in
the centripetal force acting on the ball?
A)
B)
C)
D)
doubling V and doubling R
doubling V and halving R
halving V and doubling R
halving V and halving R
59. A 1.0 × 103-kilogram car travels at a constant
speed of 20. meters per second around a
horizontal circular track. Which diagram
correctly represents the direction of the car’s
velocity (v) and the direction of the centripetal
force (Fc) acting on the car at one particular
moment?
A)
B)
C)
D)
60. A student on her way to school walks four
blocks east, three blocks north, and another four
blocks east, as shown in the diagram.
Compared to the distance she walks, the
magnitude of her displacement from home to
school is
A) less
C) the same
B) greater
Answer Key
Midterm Review (2015)
1.
C
36.
C
2.
B
37.
D
3.
C
38.
C
4.
C
39.
C
5.
B
40.
D
6.
C
41.
D
7.
C
42.
C
8.
D
43.
D
9.
C
44.
A
10.
C
45.
C
11.
C
46.
C
12.
A
47.
A
13.
C
48.
C
14.
B
49.
A
15.
D
50.
C
16.
C
51.
B
17.
C
52.
A
18.
A
53.
C
19.
C
54.
C
20.
D
55.
B
21.
C
56.
B
22.
C
57.
D
23.
D
58.
B
24.
B
59.
A
25.
D
60.
A
26.
B
27.
A
28.
C
29.
C
30.
D
31.
A
32.
D
33.
D
34.
D
35.
D