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Samples: UHS APhy 105 Final Exam
1. An object dropped from rest will have a velocity of
approximately 30. meters per second at the end of
(A) 1.0 s
(C) 3.0 s
(B) 2.0 s
(D) 4.0 s
2. Oil drips at 0.4-second intervals from a car that has an oil
leak. Which pattern best represents the spacing of oil
drops as the car accelerates uniformly from rest?
(A)
(B)
(C)
(D)
9. A softball is thrown straight up, reaching a maximum
height of 20 meters. Neglecting air resistance, what is the
ball's approximate vertical speed when it hits the ground?
(A) 10 m/sec
(C) 15 m/sec
(B) 20 m/sec
(D) 40 m/sec
10. Acceleration is a vector quantity that represents the timerate of change in
(A) momentum
(C) distance
(B) velocity
(D) energy
11. As a body falls freely near the surface of the Earth, its
acceleration
(A) decreases
(C) remains the same
(B) increases
12. A jogger accelerates at a constant rate as she travels 5.0
meters along a straight track from point A to point B ,as
shown in the diagram below.
3. If the mass of an object were doubled, its acceleration due
to gravity would be
(A) halved
(C) unchanged
(B) doubled
(D) quadrupled
4. A runner starts from rest and accelerates uniformly to a
speed of 8.0 meters per second in 4.0 seconds. The
magnitude of the acceleration of the runner is
(C) 9.8 m/s2
(A) 0.50 m/s2
2
(B) 2.0 m/s
(D) 32 m/s2
5. The speed of a wagon increases from 2.5 meters per
second to 9.0 meters per second in 3.0 seconds as it
accelerates uniformly down a hill. What is the magnitude
of the acceleration of the wagon during this 3.0-second
interval?
(A) 0.83 m/s2
(C) 3.0 m/s2
2
(B) 2.2 m/s
(D) 3.8 m/s2
6. A car travels 90. meters due north in 15 seconds. Then the
car turns around and travels 40. meters due south in 5.0
seconds. What is the magnitude of the average velocity of
the car during this 20.-second interval?
(A) 2.5 m/s
(C) 6.5 m/s
(B) 5.0 m/s
(D) 7.0 m/s
7. As an object falls freely near the surface of the Earth, its
velocity
(A) decreases
(C) remains the same
(B) increases
8. A locomotive starts from rest and accelerates at 0.12
meter per second2 to a speed of 2.4 meters per second in
20. seconds. This motion could best be described as
(A) constant acceleration and constant velocity
(B) increasing acceleration and constant velocity
(C) constant acceleration and increasing velocity
(D) increasing acceleration and increasing velocity
APhy105_MC_Samples
If her speed was 2.0 meters per second at point A and will
be 3.0 meters per second at point B, how long will it take
her to go from A to B?
(A) 1.0 s
(C) 3.3 s
(B) 2.0 s
(D) 4.2 s
13. Base your answer to the following question on the
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
14. A skater increases her speed uniformly from 2.0 meters
per second to 7.0 meters per second over a distance of 12
meters. The magnitude of her acceleration as she travels
this 12 meters is
(A) 1.9 m/s2
(C) 2.4 m/s2
2
(B) 2.2 m/s
(D) 3.8 m/s2
Samples: UHS APhy 105 Final Exam
15. An observer recorded the data above for the motion of a
car undergoing constant acceleration.
What was the magnitude of the acceleration of the car?
(C) 1.5 m/s2
(A) 1.3 m/s2
2
(B) 2.0 m/s
(D) 4.5 m/s2
16. A clam dropped by a sea gull takes 3.0 seconds to hit the
ground. What is the sea gull's approximate height above
the ground at the time the clam was dropped?
(A) 15 m
(C) 45 m
(B) 30. m
(D) 90. m
17. A car having an initial speed of 16 meters per second is
uniformly brought to rest in 4.0 seconds. How far does the
car travel during this 4.0-second interval?
(A) 32 m
(C) 96 m
(B) 82 m
(D) 4.0 m
18. Base your answer to the following question on the
information below.
A stream is 30. meters wide and its current flows
southward at 1.5 meters per second. A toy boat
is launched with a velocity of 2.0 meters per
second eastward from the west bank of the
stream.
How much time is required for the boat to reach the
opposite bank of the stream?
(A) 8.6 s
(C) 15 s
(B) 12 s
(D) 60. s
22. Base your answer to the following question on the
diagram below which represents a 10-kilogram object at
rest at point A. The object accelerates uniformly from
point A to point B in 4 seconds, attaining a maximum
speed of 10 meters per second at point B. The object then
moves up the incline. [Neglect friction.]
What distance did the object travel in moving from point A
to point B?
(A) 2.5 m
(C) 20. m
(B) 10. m
(D) 100 m
23. A rocket initially at rest on the ground lifts off vertically
with a constant acceleration of 2.0 × 101 meters per second
2
. How long will it take the rocket to reach an altitude of
9.0 × 103 meters?
(A) 3.0 × 101 s
(C) 4.5 × 102 s
1
(D) 9.0 × 102 s
(B) 4.3 × 10 s
24. Base your answer to the following question on the
information below:
A 10.-kilogram object, starting from rest,
slides down a frictionless incline with a constant
acceleration of 2.0 m/sec2 for four seconds.
Which graph below best represents the relationship
between acceleration (a) and time (t) for the object?
(A)
(C)
(B)
(D)
19. 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
(B) 39 m
(D) 96 m
20. A car travels 20. meters east in 1.0 second. The
displacement of the car at the end of this 1.0-second
interval is
(A) 20. m
(C) 20. m east
(B) 20. m/s
(D) 20. m/s east
21. The average speed of a plane was 600 kilometers per hour.
How long did it take the plane to travel 120 kilometers?
(A) 0.2 hour
(C) 0.7 hour
(B) 0.5 hour
(D) 5 hours
APhy105_MC_Samples
25. 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
Samples: UHS APhy 105 Final Exam
26. An object, initially at rest, falls freely near the Earth's
surface. How long does it take the object to attain a speed
of 98 meters per second?
(A) 0.1 sec
(C) 98 sec
(B) 10 sec
(D) 960 sec
33. The displacement-time graph below represents the motion
of a cart along a straight line.
27. One car travels 40. meters due east in 5.0 seconds, and a
second car travels 64 meters due west in 8.0 seconds.
During their periods of travel, the cars definitely had the
same
(A) average velocity
(C) change in momentum
(B) total displacement
(D) average speed
28. What is the average velocity of a car that travels 30.
kilometers due west in 0.50 hour?
(A) 15 km/hr
(C) 15 km/hr west
(B) 60. km/hr
(D) 60. km/hr west
Base your answers to questions 29 and 30 on the graph below
which represents the relationship between speed and time for
an object in motion along a straight line.
29. During which interval is the object's acceleration the
greatest?
(A) AB
(C) DE
(B) CD
(D) EF
30. During the interval t = 8 seconds to t = 10 seconds, the
speed of the object is
(A) zero
(C) decreasing
(B) increasing
(D) constant, but not zero
31. A 1-kilogram object rests on a horizontal table top. The
force that the table top exerts on the object is
(A) 1 N
(C) 0 N
(B) 2 N
(D) 9.8 N
32. What is the magnitude of the gravitational force between
two 5.0-kilogram masses separated by a distance of 5.0
meters?
(C) 6.7 × 10 –11 N
(A) 5.0 × 100 N
–10
N
(D) 1.3 × 10 –11 N
(B) 3.3 × 10
APhy105_MC_Samples
During which interval was the cart accelerating?
(A) AB
(C) CD
(B) BC
(D) DE
34. Base your answer to the following question on the graph
below, which represents the relationship between the
displacement of an object and its time of travel along a
straight line.
What is the average speed of the object during the first 4.0
seconds?
(A) 0 m/s
(C) 8 m/s
(B) 2 m/s
(D) 4 m/s
35. Which graph best represents the motion of an object that
was initially at rest and is accelerating uniformly?
(A)
(C)
(B)
(D)
Samples: UHS APhy 105 Final Exam
36. Which graph best represents the relationship between the acceleration of an object falling freely near the surface of Earth and the time
that it falls?
(A)
(B)
37. Base your answer to the following question on the
accompanying graph which represents the motions of four
cars on a straight road.
(C)
(D)
Base your answers to questions 40 through 42 on the graph
below, which represents the motion of cars A and B on a straight
track. Car B passes car A at the same instant that car A starts
from rest at t = 0 seconds.
The speed of car C at t = 20 seconds is closest to
(A) 60 m/sec
(C) 3.0 m/sec
(B) 45 m/sec
(D) 600 m/sec
38. The uniform motion of a cart is shown in the distance
versus time graph below. What is the average speed of the
cart?
40. What is the acceleration of car A during the interval
between t = 0 and t = 60?
(A) 1 m./sec./sec.
(C) 20 m./sec./sec.
(B) 10 m./sec./sec.
(D) 30 m./sec./sec.
41. During the time intervals given below, which car traveled
the greatest distance?
(A) car A from t = 0 to t = 30
(B) car A from t = 30 to t = 60
(C) car B from t = 0 to t = 30
(D) car B from t = 30 to t = 60
(A) 0.5 m/s
(B) 2 m/s
(C) 5 m/s
(D) 50 m/s
39. If the sum of all the forces acting on a car is zero, then the
speed of the car always
(A) decreases
(C) remains the same
(B) increases
APhy105_MC_Samples
42. How far did car A travel in the interval between t = 0 and t
= 60?
(A) 30 m.
(C) 1,800 m.
(B) 360 m.
(D) 3,600 m.
43. What is the magnitude of the net force acting on a
2.0 × 103- kilogram car as it accelerates from rest to a
speed of 15 meters per second in 5.0 seconds?
(C) 3.0 × 104 N
(A) 6.0 × 103 N
4
(B) 2.0 × 10 N
(D) 6.0 × 104 N
Samples: UHS APhy 105 Final Exam
44. Which graph best represents the relationship between
Base your answers to questions 46 and 47 on the graph below
velocity and time for an object which accelerates uniformly which represents the displacement of an object as a function of
for 2 seconds, then moves at a constant velocity for 1
time.
second, and finally decelerates for 3 seconds?
(A)
(B)
46. How far is the object from the starting point at the end of
3 seconds?
(A) 0 m
(C) 3.0 m
(B) 2.0 m
(D) 9.0 m
(C)
(D)
47. During which time interval is the object accelerating?
(A) 0-2 s
(C) 3-4 s
(B) 2-3 s
(D) 4-6 s
48. The graph below represents the motion of an object
traveling in a straight line as a function of time. What is
the average speed of the object during the first four
seconds?
45. Base your answer to the following question on Cars A and B
both start from rest at the same location at the same time.
(A) 1 m/s
(B) 2 m/s
(C) 0.5 m/s
(D) 0 m/s
49. At a given location on the earth's surface, which graph
best represents the relationship between an object's mass
(M) and weight (W) ?
Compared to the speed of car B at 6 seconds, the speed of
car A at 6 seconds is
(A) less
(C) the same
(B) greater
APhy105_MC_Samples
(A)
(C)
(B)
(D)
Samples: UHS APhy 105 Final Exam
50. A force of F Newtons gives an object with a mass of M an
acceleration of A. The same force F will give a second
object with a mass of 2M an acceleration of
(A) A/2
(C) A
(B) 2A
(D) A/4
51. A container of rocks with a mass of 65.0 kilograms is
brought back from the Moon’s surface where the
acceleration due to gravity is 1.62 meters per second
2
. What is the weight of the container of rocks on Earth’s
surface?
(A) 638 N
(C) 105 N
(B) 394 N
(D) 65.0 N
59. A box decelerates as it
moves to the right along a
horizontal surface, as
shown in the diagram at
the right.
Which vector best represents the force of friction on the
box?
(C)
(A)
52. A 50-kilogram student, standing on the Earth, attracts the
Earth with a force closest to
(A) 0 N
(C) 50 N
(B) 5 N
(D) 500 N
53. On the surface of planet X, the acceleration due to gravity
is 16 meters per seconds. What is the weight of a 6.0kilogram mass located on the surface of planet X?
(A) 2.7 N
(C) 96 N
(B) 59 N
(D) 940 N
(D)
(B)
60. The diagram below shows a granite block being slid at
constant speed across a horizontal concrete floor by a
force parallel to the floor.
54. If the mass of a moving object could be doubled, the
inertia of the object would be
(A) halved
(C) unchanged
(B) doubled
(D) quadrupled
55. When an unbalanced force of 10. Newtons is applied to an
object whose mass is 4.0 kilograms, the acceleration of the
object will be
(C) 9.8 m/s2
(A) 40. m/s2
2
(B) 2.5 m/s
(D) 0.40 m/s2
56. An object with a mass of 0.5 kilogram starts from rest and
achieves a maximum speed of 20 meters per second in
0.01 second. What average unbalanced force accelerates
this object?
(A) 1,000 N
(C) 0.1 N
(B) 10 N
(D) 0.001 N
Which pair of quantities could be used to determine the
coefficient of friction for the granite on the concrete?
(A) mass and speed of the block
(B) mass and normal force on the block
(C) frictional force and speed of the block
(D) frictional force and normal force on the block
61. The diagram below represents a car resting on a hill.
57. When a force of 50 Newtons acts on a mass of 10
kilograms, the resulting acceleration will be
(C) 40 m/s2
(A) 500 m/s2
2
(B) 60 m/s
(D) 5 m/s2
58. According to your reference table, Approximate
Coefficents of Friction, what is the minimum horizontal
force needed to start a 300. kilogram steel block on a steel
table in motion?
(A) 5.70 N
(C) 1710 N
(B) 7.40 N
(D) 2220 N
APhy105_MC_Samples
Which vector best represents the weight of the car?
(A) A
(C) C
(B) B
(D) D
Samples: UHS APhy 105 Final Exam
62. In the diagram below, the weight of a box on a plane
inclined at 30.º is represented by the vector W.
65. Base your answer to the following question on the
diagram below which shows a cart held motionless by an
external force F on a frictionless incline.
What is the magnitude of the component of the weight (W
) that acts parallel to the incline?
(A) W
(C) 0.87 W
(B) 0.50 W
(D) 1.5 W
63. A 1.0-kilogram block is placed on each of four frictionless
planes inclined at different angles. On which inclined plane
will the acceleration of the block be greatest?
(A)
(B)
Compared to the magnitude of the external force F
required to hold the cart at point C on the frictionless
surface, the magnitude of the external force F required to
hold the cart at point C, if friction were present, is
(A) less
(C) the same
(B) greater
66. A projectile is fired at an angle of 53º to the horizontal
with a speed of 80. meters per second. What is the vertical
component of the project initial velocity?
(A) 130 m/s
(C) 64 m/s
(B) 100 m/s
(D) 48 m/s
67. A 100.-newton force acts on point P, as shown in the
diagram below.
(C)
(D)
64. Four cannonballs, each with mass M and initial velocity V,
are fired from a cannon at different angles relative to the
Earth. Neglecting air friction, which angular direction of
the cannon produces the greatest projectile height?
(A) 90º
(C) 45º
(B) 70º
(D) 20º
APhy105_MC_Samples
The magnitude of the vertical component of this force is
approximately
(A) 30. N
(C) 71 N
(B) 50. N
(D) 87 N
68. 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
69. Jill is pulling a 200. Newton sled through the snow at
constant velocity using a horizontal force of 10. Newtons.
What is the kinetic coefficient of friction of the sled on the
snow?
(A) 0.02
(C) 0.20
(B) 0.05
(D) 20
Samples: UHS APhy 105 Final Exam
70. The diagram below shows a golf ball being struck by a club.
The ball leaves the club with a speed of 40. meters per
second at an angle of 60.° with the horizontal.
If the ball strikes the ground 7.1 seconds later, how far
from the golfer does the ball land? [Assume level ground
and neglect air resistance.]
(A) 35 m
(C) 140 m
(B) 71 m
(D) 280 m
71. The diagram below represents a box shown sliding down
an inclined plane. Toward which point will the force of
friction on the box be directed?
75. The diagram below shows the muzzle of a cannon located
50. meters above the ground. When the cannon is fired, a
ball leaves the muzzle with an initial horizontal speed of
250. meters per second. [Neglect air resistance.]
Which action would most likely increase the time of flight
of a ball fired by the cannon?
(A) pointing the muzzle of the cannon toward the ground
(B) moving the cannon closer to the edge of the cliff
(C) positioning the cannon higher above the ground
(D) giving the ball a greater initial horizontal velocity
76. The table below lists the coefficients of kinetic friction for
four materials sliding over steel.
(A) 1
(B) 2
(C) 3
(D) 4
72. According to your table, Approximate Coefficents of
Friction, which road surface would offer the greatest
traction for rubber tires?
(A) dry concrete
(C) dry asphalt
(B) wet concrete
(D) wet asphalt
73. Jim wishes to push a 100. N wood crate across a wood
floor. According to your table, Approximate Coefficents of
Friction, what is the minimum horizontal force that would
be required to start the crate moving?
(A) 30. N
(C) 72 N
(B) 42 N
(D) 100 N
74. In order to keep an object weighing 20 Newtons moving at
constant speed along a horizontal surface, a force of 10
Newtons is required. The force of friction between the
surface and the object is
(A) 0 N
(C) 20 N
(B) 10 N
(D) 30 N
A 10.-kilogram block of each of these materials is pulled
horizontally across a steel floor at constant velocity. Which
block requires the smallest applied force to keep it moving
at constant velocity?
(A) aluminum
(C) copper
(B) brass
(D) steel
77. A box initially at rest on a level floor is being acted upon by
a variable horizontal force, as shown in the diagram at the
right. Compared to the force required to start the box
moving, the force required to keep it moving at constant
speed is
(A) less
(B) greater
APhy105_MC_Samples
(C) the same
Samples: UHS APhy 105 Final Exam
78. The diagram below shows a student applying a 10.-newton force to slide a piece of wood at constant speed across a horizontal surface.
After the wood is cut in half, one piece is placed on top of the other, as shown.
What is the magnitude of the force, F, required to slide the stacked wood at constant speed across the surface?
(A) 40 N
(B) 20 N
(C) 10 N
(D) 5.0 N
79. Base your answer to the following question on the information and diagram below.
A student standing on a knoll throws a snowball horizontally 4.5 meters above the level ground toward a smokestack 15
meters away. The snowball hits the smokestack 0.65 second after being released. [Neglect air resistance.]
At the instant the snowball is released, the horizontal component of its velocity is approximately
(A) 6.9 m/s
(B) 9.8 m/s
(C) 17 m/s
APhy105_MC_Samples
(D) 23 m/s
Samples: UHS APhy 105 Final Exam
Base your answers to questions 80 through 82 on on the diagram and information below.
A machine launches a tennis ball at an angle of 45° with the horizontal, as shown. The ball has an initial vertical velocity of 9.0
meters per second and an initial horizontal velocity of 9.0 meters per second. The ball reaches its maximum height 0.92 second after
its launch. [Neglect air resistance and assume the ball lands at the same height above the ground from which it was launched.]
80. The total horizontal distance traveled by the tennis ball during the entire time it is in the air is approximately
(A) 23 m
(B) 17 m
(C) 8.3 m
(D) 4.1 m
81. The speed at which the launcher fires tennis balls is constant, but the angle between the launcher and the horizontal can be varied. As the
angle is decreased from 45° to 30.°, the range of the tennis balls
(A) decreases
(B) increases
(C) remains the same
82. The speed of the tennis ball as it leaves the launcher is approximately
(A) 4.5 m/s
(B) 8.3 m/s
(C) 13 m/s
83. Base your answer to the following question on the
diagram below which represents a 3.0-kilogram mass
being moved at a constant speed by a force of 6.0
Newtons.
The magnitude of the force of friction acting on the mass is
(A) 0 N
(C) 3 N
(B) 1.8 N
(D) 6 N
84. An artillery shell is fired at an angle to the horizontal. Its
initial velocity has a vertical component of 150 meters per
second and a horizontal component of 260 meters per
second. What is the magnitude of the initial velocity of the
shell?
(C) 3.0 × 102 m/s
(A) 9.0 × l04 m/s
2
(D) 1.1 × 102 m/s
(B) 4.1 × 10 m/s
APhy105_MC_Samples
(D) 18 m/s
Base your answers to questions 85 and 86 on the information
below.
A ball is projected vertically upward from the
surface of the Earth with an initial speed of +49 meters
per second. The ball reaches its maximum height in 5.0
seconds. (Disregard air resistance.)
85. What is the total displacement of the ball from the time it
is thrown until it returns to the point from which it was
thrown?
(A) 248 m
(C) 49 m
(B) 9.8 m
(D) 0 m
86. What is the maximum height reached by the ball?
(A) 24.5 m
(C) 122.5 m
(B) 49.0 m
(D) 245 m
87. A golf ball is hit with an initial velocity of 15 meters per
second at an angle of 35 degrees above the horizontal.
What is the vertical component of the golf ball’s initial
velocity?
(A) 8.6 m/s
(C) 12 m/s
(B) 9.8 m/s
(D) 15 m/s
Samples: UHS APhy 105 Final Exam
Base your answers to questions 88 and 89 on the information
and diagram below.
A child kicks a ball with an initial velocity of 8.5
meters per second at an angle of 35º with the
horizontal, as shown. The ball has an initial vertical
velocity of 4.9 meters per second and a total time of
flight of 1.0 second. [Neglect air resistance.]
91. A 0.2-kilogram red ball is thrown horizontally at a speed of
4 meters per second from a height of 3 meters. A 0.4kilogram green ball is thrown horizontally from the same
height at a speed of 8 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 is
(A) one-half as great
(C) the same
(B) twice as great
(D) four times as great
Base your answers to questions 92 and 93 on the information
below.
Projectile A is launched horizontally at a speed of
20. meters per second from the top of a cliff and
strikes a level surface below, 3.0 seconds later.
Projectile B is launched horizontally from the same
location at a speed of 30. meters per second.
88. The horizontal component of the ball’s initial velocity is
approximately
(A) 3.6 m/s
(C) 4.9 m/s
(B) 7.0 m/s
(D) 13 m/s
89. The maximum height reached by the ball is approximately
(A) 1.2 m
(C) 4.9 m
(B) 2.5 m
(D) 8.5 m
90. The diagram below shows a student throwing a baseball
horizontally at 25 meters per second from a cliff 45 meters
above the level ground.
92. The time it takes projectile B to reach the level surface is
(A) 4.5 s
(C) 3.0 s
(B) 2.0 s
(D) 10. s
93. Approximately how high is the cliff?
(A) 29 m
(C) 60. m
(B) 44 m
(D) 104 m
Base your answers to questions 94 and 95 on the diagram below
which shows a ball projected horizontally with an initial velocity
of 20. meters per second east, off a cliff 100. meters high.
[Neglect air resistance.]
94. How many seconds does the ball take to reach the ground?
(A) 4.5 s
(C) 9.8 s
(B) 20. s
(D) 2.0 s
95. During the flight of the ball, what is the direction of its
acceleration?
(A) downward
(C) westward
(B) upward
(D) eastward
Approximately how far from the base of the cliff does the
ball hit the ground? [Neglect air resistance.]
(A) 45 m
(C) 140 m
(B) 75 m
(D) 230 m
APhy105_MC_Samples
96. What is the period of orbit of a communications satellite in
geosynchronous orbit about Earth?
(A) 1 year
(C) 12 hours
(B) 24 hours
(D) 60 minutes
Samples: UHS APhy 105 Final Exam
97. A ball is projected horizontally to the right from a height of
50. meters, as shown in the diagram below.
99. Base your answer to the following question on the
information below.
An outfielder throws a baseball to the first
baseman at a speed of 19.6 meters per second
and an angle of 30.° above the horizontal.
Which pair represents the initial horizontal velocity (vx)
and initial vertical velocity (vy) of the baseball?
(A) vx = 17.0 m/s, vy = 9.80 m/s
(B) vx = 9.80 m/s, vy = 17.0 m/s
(C) vx = 19.4 m/s, vy = 5.90 m/s
(D) vx = 19.6 m/s, vy = 19.6 m/s
100. Base your answer to the following question on the
information and diagram below.
Which diagram best represents the position of the ball at
1.0-second intervals? [Neglect air resistance.]
A cannon elevated at an angle of 35º to the
horizontal fires a cannonball, which travels the
path shown in the diagram below.
[Neglect air resistance and assume the ball lands
at the same height above the ground from which
it was launched.]
If the ball lands 7.0 × 102 meters from the cannon 10.
seconds after it was fired, what is the horizontal
component of its initial velocity?
(A) 70. m/s
(C) 35 m/s
(B) 49 m/s
(D) 7.0 m/s
(A)
(C)
101. A ball is thrown at an angle of 38° to the horizontal. What
happens to the magnitude of the ball’s vertical
acceleration during the total time interval that the ball is in
the air?
(A) It decreases, then increases.
(B) It decreases, then remains the same.
(C) It increases, then decreases.
(D) It remains the same.
102. A vector makes an angle, ‡, with the horizontal. The
horizontal and vertical components of the vector will be
equal in magnitude if angle ‡ is
(A) 30°
(C) 60°
(B) 45°
(D) 90°
(B)
(D)
98. A ball thrown vertically upward reaches a maximum height
of 30. meters above the surface of Earth. At its maximum
height, the speed of the ball is
(A) 0.0 m/s
(C) 3.1 m/s
(B) 9.8 m/s
(D) 24 m/s
APhy105_MC_Samples
103. 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
Samples: UHS APhy 105 Final Exam
104. Projectiles are fired from different angles with the same
initial speed of 14 meters per second. The graph below
shows the range of the projectiles as a function of the
original angle of inclination to the ground, neglecting air
resistance.
Base your answers to questions 108 through 110 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.
The graph shows that the range of the projectiles is
(A) the same for all angles
(B) the same for angles of 20.º and 80.º
(C) greatest for an angle of 45º
(D) greatest for an angle of 90.º
105. Base your answer to the following question on the
information below.
A toy projectile is fired from the ground
vertically upward with an initial velocity of +29
meters per second. The projectile arrives at its
maximum altitude in 3.0 seconds.
[Neglect air resistance.]
The greatest height the projectile reaches is approximately
(A) 23 m
(C) 87 m
(B) 44 m
(D) 260 m
106. A ball is thrown horizontally from the top of a building with
an initial velocity of 15 meters per second. At the same
instant, a second ball is dropped from the top of the
building. The two balls have the same
(A) path as they fall
(B) final velocity as they reach the ground
(C) initial horizontal velocity
(D) initial vertical velocity
107. Compared to the mass of an object at the surface of the
Earth, the mass of the object a distance of two Earth radii
from the center of the Earth is
(A) the same
(C) one-half as great
(B) twice as great
(D) one-fourth as great
108. What is the approximate total time required for the ball to
reach the ground? [Neglect air resistance.]
(A) 12.2 s
(C) 3.00 s
(B) 2.04 s
(D) 3.50 s
109. What is the initial vertical velocity of the ball?
(A) 0 m/s
(C) 20.0 m/s
(B) 9.81 m/s
(D) 60.0 m/s
110. 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
111. A 2-kilogram block is dropped from the roof of a tall
building at the same time a 6-kilogram ball is thrown
horizontally from the same height. Which statement best
describes the motion of the block and the motion of the
ball? [Neglect air resistance.]
(A) The 2-kg block hits the ground first because it has no
horizontal velocity.
(B) The 6-kg ball hits the ground first because it has more
mass.
(C) The 6-kg ball hits the ground first because it is round.
(D) The block and the ball hit the ground at the same time
because they have the same vertical acceleration.
112. A mass of 10 kilograms is revolving at a linear speed of 5
meters per second in a circle with a radius of 10 meters.
The centripetal force acting on the mass is
(A) 5 N
(C) 20 N
(B) 10 N.
(D) 25 N
APhy105_MC_Samples
Samples: UHS APhy 105 Final Exam
113. Four different balls are thrown horizontally off the top of
four cliffs. In which diagram does the ball have the
shortest time of flight?
(A)
Base your answers to questions 117 through 119 on the
following information. In the diagram below, a 10.-kilogram
sphere, A, is projected horizontally with a velocity of 30. meters
per second due east from a height of 20. meters above level
ground. At the same instant, a 20.-kilogram sphere, B, is
projected horizontally with a velocity of 10. meters per second
due west from a height of 80. meters above level ground.
[Neglect air friction.]
(C)
(B)
(D)
114. Gravitational force F exists between point objects A and B
separated by distance R. If the mass of A is doubled and
distance R is tripled, what is the new gravitational force
between A and B?
(A) 2F
9
(B) 2F
3
(C) 3F
2
(D) 9F
2
115. An object weighs 200. Newtons at a distance of
100. kilometers above the center of a small uniform
planet. How much will the object weigh 200. kilometers
above the planet's center?
(A) 400. N
(C) 50.0 N
(B) 100. N
(D) 25.0 N
116. Base your answer to the following question on the
information below.
A car traveling at a speed of 13 meters per
second accelerates uniformly to a speed of 25
meters per second in 5.0 seconds.
A truck traveling at a constant speed covers the same total
distance as the car in the same 5.0-second time interval.
Determine the speed of the truck.
APhy105_MC_Samples
117. Compared to the vertical acceleration of sphere A, the
vertical acceleration of sphere B is
(A) the same
(C) one-half as great
(B) twice as great
(D) four times as great
118. Initially, the spheres are separated by a horizontal distance
of 100. meters. What is the horizontal separation of the
spheres at the end of 1.5 seconds?
(A) 15 m
(C) 40. m
(B) 30 m
(D) 45 m
119. The magnitude of the horizontal acceleration of sphere A is
(C) 9.8 m/s2
(A) 0.0 m/s2
2
(B) 2.0 m/s
(D) 15 m/s2
Samples: UHS APhy 105 Final Exam
120. Base your answer to the following question on the
information and diagram below.
The diagram shows a student seated on a
rotating circular platform, holding a 2.0-kilogram
block with a spring scale. The block is 1.2 meters
from the center of the platform. The block has a
constant speed of 8.0 meters per second.
[Frictional forces on the block are negligible.]
Base your answers to questions 122 and 123 on the information
and diagram below.
A roller coaster cart starts from rest and accelerates,
due to gravity, down a track. The cart starts at a height
that enables it to complete a loop in the track. [Neglect
friction.]
122. Which diagram best represents the path followed by an
object that falls off the cart when the cart is at point D?
Which statement best describes the block’s movement as
the platform rotates?
(A) Its velocity is directed tangent to the circular path,
with an inward acceleration.
(B) Its velocity is directed tangent to the circular path,
with an outward acceleration.
(C) Its velocity is directed perpendicular to the circular
path, with an inward acceleration.
(D) Its velocity is directed perpendicular to the circular
path, with an outward acceleration.
121. Base your answer to the following question on the
diagram below which represents a mass of 10.0 kilograms
traveling at constant speed of 4. meters per second in a
horizontal circular path about point D.
Which quantity would increase if the radius increased?
(A) period
(C) mass
(B) tangential velocity
(D) centripetal acceleration
APhy105_MC_Samples
(A)
(B)
(C)
(D)
123. The magnitude of the centripetal force keeping the cart in
circular motion would be greatest at point
(A) A
(C) C
(B) B
(D) D
124. Base your answer to the following question on the
diagram below which represents a ball of mass M attached
to a string. The ball moves at a constant speed around a
flat horizontal circle of radius R.
If the string is shortened while the speed of the ball
remains the same, the centripetal acceleration will
(A) decrease
(C) remain the same
(B) increase
Samples: UHS APhy 105 Final Exam
125. Base your answer to the following question on the
information and diagram below.
A 1200-kilogram car traveling at a constant
speed of 9.0 meters per second turns at an
intersection. The car follows a horizontal circular
path with a radius of 25 meters to point P.
The magnitude of the centripetal force acting on the car as
it travels around the circular path is approximately
(C) 3.9 × 103 N
(A) 1.1 × 104 N
4
(B) 1.2 × 10 N
(D) 4.3 × 102 N
126. Base your answer to the following question on the
information and diagram below.
A 1.00 × 103 -kilogram car is driven clockwise
around a flat circular track of radius 25.0 meters.
The speed of the car is a constant 5.00 meters
per second.
Base your answers to questions 127 through 130 on the diagram
below which represents a 2.0-kilogram mass moving in a circular
path on the end of a string 0.50 meter long. The mass moves in a
horizontal plane at a constant speed of 4.0 meters per second.
127. The speed of the mass is changed to 2.0 meters per
second. Compared to the centripetal acceleration of the
mass when moving at 4.0 meters per second, its
centripetal acceleration when moving at 2.0 meters per
second would be
(A) half as great
(C) one-fourth as great
(B) twice as great
(D) four times great
128. The force exerted on the mass by the string is
(A) 8 N
(C) 32 N
(B) 16 N
(D) 64 N
129. The centripetal force acting on the mass is directed toward
point
(A) A
(C) C
(B) B
(D) D
130. In the position shown in the diagram, the momentum of
the mass is directed toward point
(A) A
(C) C
(B) B
(D) D
Which factor, when doubled, would produce the greatest
change in the centripetal force acting on the car?
(A) mass of the car
(C) velocity of the car
(B) radius of the track
(D) weight of the car
APhy105_MC_Samples
Samples: UHS APhy 105 Final Exam
Base your answers to questions 131 through 135 on the diagram
below which represents a 5.0-kilogram object revolving around a
circular track in a horizontal plane at a constant speed. The
radius of the track is 20. meters and the centripetal force on the
object is 4.0 × 102 Newtons.
136. An object on the end of a string
rotates clockwise in a circle as
shown in the diagram below.
If the string breaks when the object is at point X, which
arrow below best represents the path of the object after
the string has broken?
131. The object's centripetal acceleration is
(A) 0.012 m/s²
(C) 80. m/s²
(B) 20. m/s²
(D) 1.0 × 102 m/s2
132. In the position shown, the object's centripetal acceleration
is directed toward point
(A) A
(C) C
(B) B
(D) D
133. In the position shown, the object's velocity is directed
toward point
(A) A
(C) C
(B) B
(D) D
134. The object's speed is
(A) 20. m/s
(B) 40. m/s
(C) 60. m/s
(D) 80. m/s
135. If the radius of the track is increased, the centripetal force
necessary to keep the object revolving at the same speed
would
(A) decrease
(C) remain the same
(B) increase
APhy105_MC_Samples
(A)
(C)
(B)
(D)
Samples: UHS APhy 105 Final Exam
Base your answers to questions 137 through 139 on the diagram
below which shows a 2.0-kilogram model airplane attached to a
wire. The airplane is flying clockwise in a horizontal circle of
radius 20. meters at 30. meters per second.
138. The centripetal force acting on the airplane at the position
shown is directed toward point
(A) A
(C) C
(B) B
(D) D
139. What is the magnitude of the centripetal acceleration of
the airplane?
(C) 45 m/s2
(A) 0 m/s2
2
(B) 1.5 m/s
(D) 90. m/s2
137. If the wire breaks when the airplane is at the position
shown, the airplane will move toward point
(A) A
(C) C
(B) B
(D) D
APhy105_MC_Samples