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Name: ________________________ Class: ___________________ Date: __________ ID: A

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Exam Review

Multiple Choice

Identify the letter of the choice that best completes the statement or answers the question.

____ 1. A football player successfully kicks a field goal through the uprights situated at the south end of the

stadium. What are the directions of the instantaneous velocity and acceleration, respectively, of the

football at the peak of its trajectory?

a. south, south d. south, up

b. up, south e. down, down

c. south, down

____ 2. Two hikers set out from the same spot and arrive at the same destination but they take different routes.

Which of the following quantities must be the same for both hikers?

a. distance d. displacement

b. average speed e. acceleration

c. average velocity

____ 3. Which of the following graphs does NOT depict uniform motion?

a. A and B d. B and D

b. C only e. A and E

c. D and E

____ 4. The slope of a velocity-time graph represents

a. displacement d. acceleration

b. average velocity e. distance

c. instantaneous velocity

____ 5. The area under a velocity-time graph represents

a. acceleration d. distance

b. displacement e. average velocity

c. instantaneous velocity

____ 6. An object is travelling north and slowing down. The directions associated with the object’s velocity and

acceleration, respectively, are

a. [N], [S] d. [N], [N]

b. [N], [N] e. [N], [S]

c. [S], [S]

____ 7. The slope of an acceleration-time graph represents

a. change in velocity d. displacement

b. instantaneous acceleration e. instantaneous velocity

c. jerk

____ 8. An object is thrown vertically upward with a speed of 25 m/s. How much time passes before it comes

back down at 15 m/s? (Air resistance is negligible.)

a. 1.0 s d. 18 s

b. 4.1 s e. 27 s

c. 9.8 s

Name: ________________________ ID: A

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____ 9. An object is thrown vertically upward at 18 m/s from a window and hits the ground 1.6 s later. What is

the height of the window above the ground? (Air resistance is negligible.)

a. 3.7 m d. 37 m

b. 16 m e. 41 m

c. 21 m

____ 10. A jogger is running at 4.2 m/s when she begins to accelerate uniformly. If she runs a distance of 14 m in

the next 3.0 s, what is her new speed?

a. 17 m/s d. 5.1 m/s

b. 14 m/s e. 4.9 m/s

c. 7.7 m/s

____ 11. An object is thrown vertically downward at 3.2 m/s. How long will the object take to hit the ground 12 m

below?

a. 3.8 s d. 1.0 s

b. 3.1 s e. 1.3 s

c. 2.0 s

____ 12. A bullet accelerates uniformly along a barrel, exiting the gun in 24 ms with a speed of 196 m/s. The

acceleration of the bullet, expressed in units of metre per second squared, is

a. 1.7 × 105 d. 1.7 × 103

b. 1.8 × 104 e. 3.6 × 102

c. 8.2 × 103

____ 13. A car is travelling north when it enters a curve. It maintains a constant speed and leaves the curve

travelling east. The direction of the car’s acceleration is

a. south-east d. south

b. north-east e. the car does not accelerate

c. east

____ 14. Ignoring air resistance, which of the following are exhibiting “free fall”?

a. an object, initially at rest, dropped out of a window

b. an object thrown vertically downward from a window

c. an object projected vertically upward from a window

d. an object thrown horizontally from a window

e. all of the above

____ 15. Three identical objects are thrown from the same height through a window at the same time. Object A is

thrown horizontally at 4.0 m/s, object B is thrown horizontally at 8.0 m/s, and object C is simply dropped.

If air resistance is negligible, which object will reach the ground first?

a. object A

b. object B

c. object C

d. objects B and C will land first and together

e. all three will land at the same time

____ 16. A boat always points directly at the opposite shore while crossing a river. The time it will take to cross

will be

a. less if the current is stronger

b. greater if the current is stronger

c. the same regardless of the current

d. dependent on the strength of the current

e. impossible to predict without more information

____ 17. With no wind, a hot air balloon rises vertically at 4.0 m/s. With a wind blowing, the same balloon rises at

an angle of 10.0° with the vertical. What is the wind speed?

a. 3.9 m/s d. 0.25 m/s

b. 0.71 m/s e. 0.044 m/s

c. 0.69 m/s

Name: ________________________ ID: A

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____ 18. Which of the following is NOT considered to be one of the “fundamental forces”?

a. gravity d. weak nuclear

b. friction e. electromagnetic

c. strong nuclear

____ 19. The free-body diagram of a wagon being pulled along a horizontal surface is best represented by

a. A d. D

b. B e. E

c. C

____ 20. The free-body diagram of a block being pushed up a rough ramp is best represented by

a. A d. D

b. B e. E

c. C

____ 21. The free-body diagram of a car in a skid with its brakes locked up is best represented by

a. A d. D

b. B e. E

c. C

____ 22. An object sits at rest on a ramp. Which of the following free-body diagrams best represents the forces

acting on the object?

a. A d. D

b. B e. E

c. C

Name: ________________________ ID: A

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____ 23. A 24-kg traffic light is suspended from the midpoint of a cable suspended between two poles. The angle

between the cable and the pole is 80° at both poles. The net force acting on the traffic light has a value of

a. zero d. 2.4 × 102 N

b. 47 N e. 4.6 × 102 N

c. 82 N

____ 24. An object has two forces acting on it: 8.4 N [S] and 7.5 N [E]. The magnitude of the net force is

a. 1.3 × 102 N d. 4.0 N

b. 16 N e. 0.9 N

c. 11 N

____ 25. An object is pushed horizontally at a constant velocity. What can correctly be said about the forces acting

on the object?

a. The force(s) acting forward is/are greater than the force(s) acting backward.

b. The sum of all forces has a value directed forward.

c. The sum of all forces is zero.

d. The forces acting on the object can be said to be “unbalanced.”

e. Newton’s second law best summarizes the effect of the forces acting on the object.

____ 26. Which of the following is NOT an example of “inertia”?

a. A person’s head jerks back as the car he is riding in accelerates forward.

b. A person’s head jerks forward as the car he is riding in suddenly stops.

c. A person is pressed up against the car door as the car turns a corner.

d. A person is largely unaware of a car’s motion when his eyes are closed.

e. All of the above are examples of inertia.

____ 27. Which of the following situations would produce the greatest acceleration?

a. A 1.0-N force acting west and a 2.0-N force acting east on a 1.0-kg object.

b. A 3.0-N force acting west and a 5.0-N force acting east on a 2.0-kg object.

c. A 8.0-N force acting west and a 5.0-N force acting east on a 3.0-kg object.

d. A 8.0-N force acting west and a 12.0-N force acting east on a 4.0-kg object.

e. A 1.0-N force acting west and a 9.0-N force acting east on a 5.0-kg object.

____ 28. An elevator moves downward at a constant speed. What is the relationship between the gravitational

force Fçg acting on the elevator and the tension FçT in the cable?

a. Fçg

||

|| = FçT

||

|| d. Fçg

||

|| ≥ FçT

||

||

b. Fçg

||

|| > FçT

||

|| e. Fçg

||

|| ≤ FçT

||

||

c. Fçg

||

|| < FçT

||

||

____ 29. An elevator accelerates downward. What is the relationship between the gravitational force Fçg acting on

the elevator and the tension FçT in the cable that supports the elevator?

a. Fçg

||

|| = FçT

||

|| d. Fçg

||

|| ≥ FçT

||

||

b. Fçg

||

|| > FçT

||

|| e. Fçg

||

|| ≤ FçT

||

||

c. Fçg

||

|| < FçT

||

||

____ 30. An elevator is moving upward at a constant velocity. What is the relationship between the gravitational

force Fçg acting on the elevator and the tension FçT in the cable that supports the elevator?

a. Fçg

||

|| = FçT

||

|| d. Fçg

||

|| ≥ FçT

||

||

b. Fçg

||

|| > FçT

||

|| e. Fçg

||

|| ≤ FçT

||

||

c. Fçg

||

|| < FçT

||

||

Name: ________________________ ID: A

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____ 31. An object’s “weight”

a. depends on its mass

b. depends on the gravitational field strength

c. is properly measured in “newtons”

d. is equivalent to the force of gravity acting on the object

e. all of the above

____ 32. A 425-g model rocket is accelerated upward at 86 m/s2 by its engine. What is the value of the force

exerted by the engine on the rocket?

a. 41 N [up] d. 32 N [up]

b. 41 N [down] e. 32 N [down]

c. 37 N [up]

____ 33. Which of the following units is equivalent to a newton (N)?

a. kg·m/s d. kg·m/s2

b. g·cm/s e. kg·cm/s2

c. kg·s2/m

____ 34. A force of 12 N acting in a direction [30ºE of S] is equivalent to which of the following pairs of forces

acting simultaneously?

a. 24 N [S], 14 N [E] d. 6 N [S], 10 N [E]

b. 14 N [S], 24 N [E] e. 10 N [S], 6 N [E]

c. 12 N [S], 12 N [E]

____ 35. Forces of 2.4 N and 1.8 N act on an object at right angles to one another. What is the magnitude of a third

force acting on the same object so that it remains stationary?

a. 9.0 N d. 2.7 N

b. 4.2 N e. 0.6 N

c. 3.0 N

____ 36. A 4.0-kg object, A, and a 2.0-kg object, B, are connected with a rope. A force is applied to another rope

attached to the 2.0-kg object that pulls both A and B along a horizontal surface. Which of the following

statements is true?

a. The force that B exerts on A is greater than the force that A exerts on B.

b. The force that A exerts on B is greater than the force that B exerts on A.

c. The force that B exerts on A is equal to the force that A exerts on B provided that the

system slides with uniform motion.

d. The force that B exerts on A is equal to the force that A exerts on B regardless of the

motion of the system.

e. The sum of the applied force and the force that B exerts on A is equal to the force that A

exerts on B.

____ 37. Two masses, A and B, hang on opposite ends of a rope suspended over a pulley. The mass of A is greater

than the mass of B. If FçTA represents the force of tension exerted by the rope on mass A and FçTB

represents the force of tension exerted by the rope on mass B, then which of the following statements

concerning the forces of tension is true?

a. FçTA||

|| > FçTB

||

|| d. FçTA

||

|| ≤ FçTB

||

||

b. FçTA||

|| < FçTB

||

|| e. FçTA

||

|| = FçTB

||

||

c. FçTA||

|| ≥ FçTB

||

||

Name: ________________________ ID: A

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____ 38. An airplane has three gliders in tow behind it (glider 1 in front of glider 2 which is in front of glider 3). If

FT1 represents the force of the airplane on glider 1, FT2 represents the force of glider 1 on glider 2, and FT3

represents the force of glider 2 on glider 3, then which of the following statements correctly represents

the relationships among these three forces?

a. FçT1||

|| = FçT2

||

|| = FçT3

||

|| d. FçT1

||

|| > FçT3

||

|| > FçT2

||

||

b. FçT1||

|| > FçT2

||

|| > FçT3

||

|| e. FçT3

||

|| > FçT1

||

|| > FçT2

||

||

c. FçT1||

|| < FçT2

||

|| < FçT3

||

||

____ 39. Two masses hang on opposite ends of a rope suspended over a pulley. The pulley is restrained from

rotating and the two forces: FçTA (the force of tension exerted by the rope on mass A) and FçTB (the force

of tension exerted by the rope on mass B) are found to be equal in magnitude. If the pulley becomes free

to rotate and the system begins moving, the relationship between those forces becomes

a. FçTA||

|| > FçTB

||

|| d. FçTA

||

|| ≤ FçTB

||

||

b. FçTA||

|| < FçTB

||

|| e. FçTA

||

|| = FçTB

||

||

c. FçTA||

|| ≥ FçTB

||

||

____ 40. A 1.5-kg cart is pulled with a force of 7.3 N at an angle of 40° above the horizontal. If a kinetic friction

force of 3.2 N acts against the motion, the cart’s acceleration along the horizontal surface will be

a. 5.0 m/s2 d. 1.6 m/s2

b. 2.7 m/s2 e. 1.0 m/s2

c. 2.4 m/s2

____ 41. Three masses are suspended vertically as shown in the diagram below. The system is accelerating

upward. What is the relationship among the forces of tension?

a. FçT1||

|| = FçT2

||

|| = FçT3

||

|| d. FçT1

||

|| > FçT2

||

|| < FçT3

||

||

b. FçT1||

|| > FçT2

||

|| > FçT3

||

|| e. FçT1

||

|| > FçT3

||

|| < FçT2

||

||

c. FçT1||

|| < FçT2

||

|| < FçT3

||

||

____ 42. A 2.0-kg object is pulled horizontally by a force of 6.3 N along the floor where the coefficient of kinetic

friction is 0.24. What is the object’s acceleration?

a. 5.5 m/s2 d. 1.6 m/s2

b. 2.0 m/s2 e. 0.80 m/s2

c. 2.0 m/s2

Name: ________________________ ID: A

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____ 43. Imagine that you are travelling in a train and you have a drink sitting on the dining table in front of you.

The train suddenly stops and the drink ends up in your lap. What force acting on the drink is responsible

for its sudden motion?

a. the force of the table acting on the drink

b. the force of the track on the wheels

c. the force of the wheels on the track

d. the force of the drink on itself

e. There is no force acting on the drink that is responsible for its motion.

____ 44. The law of inertia holds

a. only for inertial frames of reference

b. only for noninertial frames of reference

c. for all frames of reference, both inertial and noninertial

d. only in a gravitational field

e. only for objects travelling with uniform motion

____ 45. The acceleration of an object sliding along a frictionless ramp that is inclined at an angle θ is

a. g cosθ d. g

b. g sinθ e. zero

c. g tanθ

____ 46. A 1.8-kg object is pulled along the floor with a force of 7.0 N acting horizontally. If the object accelerates

at 2.4 m/s2, how much kinetic friction is acting?

a. 30 N d. 7.8 N

b. 11 N e. 2.7 N

c. 8.3 N

____ 47. A 1.4-kg object is pulled horizontally along the floor against 3.2 N of kinetic friction. If the object

accelerates at 5.8 m/s2, what is the value of the applied force?

a. 26 N d. 6.4 N

b. 11 N e. 4.9 N

c. 10 N

____ 48. For an object travelling with “uniform circular motion,”

a. its velocity is constant

b. its acceleration is always directed tangent to the circle

c. its velocity is always directed toward the centre of the circle

d. its speed and distance from the centre of the circle are constant

e. its speed may change provided the radius of the circle is constant

____ 49. For an object travelling with “uniform circular motion,” its acceleration is

a. zero because the speed is constant

b. directed tangent to the circle

c. directed toward the centre of the circle

d. changing in magnitude depending on its position in the circle

e. directed outward from the centre of the circle

____ 50. An object moves with a speed of 2.4 m/s in a circle of radius 1.6 m. Its centripetal acceleration is

a. 9.2 m/s2 d. 1.5 m/s2

b. 7.4 m/s2 e. 0.94 m/s2

c. 3.6 m/s2

____ 51. A child whirls a ball around in circles on the end of a 48 cm long string at a frequency of 2.5 Hz. What is

the ball’s centripetal acceleration?

a. 1.2 × 104 m/s2 d. 38 m/s2

b. 1.2 × 102 m/s2 e. 3.0 m/s2

c. 47 m/s2

Name: ________________________ ID: A

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____ 52. A passenger on a Ferris wheel of diameter 22 m makes one complete revolution every 45 s. What is the

passenger’s centripetal acceleration?

a. 19 m/s2 d. 0.21 m/s2

b. 13 m/s2 e. 0.068 m/s2

c. 0.43 m/s2

____ 53. A fighter jet flies at 328 km/h in an arc of radius 235 m. How many “g’s” of centripetal acceleration does

the pilot experience? (1g = 9.8 m/s2)

a. 47 d. 3.6

b. 35 e. 1.5

c. 3.8

____ 54. A car drives around a corner in a radius of 16 m. Passengers experience a centripetal acceleration of 4.9

m/s2. What is the car’s speed expressed in kilometres per hour?

a. 42 d. 12

b. 32 e. 2

c. 22

____ 55. A wheel of diameter 85 cm spins at a rate such that a point on the rim of the wheel has an acceleration of

45 m/s2. How many rotations does the wheel make in 1.0 min?

a. 1.7 × 102 d. 6.9

b. 98 e. 0.93

c. 69

____ 56. A rock is tied to the end of a string and whirled around in a circle that describes a vertical plane. At

which position is the tension in the string the least?

a. at the bottom of the circle

b. at the top of the circle

c. on the ascending side of the circle

d. on the descending side of the circle

e. The tension in the string is the same at all places on the circle.

____ 57. A rock is tied to the end of a 35 cm long string and whirled around in a circle that describes a vertical

plane. The tension in the string becomes zero when the speed of the rock is

a. 9.8 × 102 cm/s d. 9.8 cm/s

b. 1.9 × 102 cm/s e. 1.9 cm/s

c. 19 cm/s

____ 58. Imagine you are a passenger upside-down at the top of a vertical looping roller coaster. The centripetal

force acting on you at this position

a. is perhaps the least of anywhere in the loop

b. is supplied at least partly by gravity

c. is supplied partly by the seat of the roller coaster

d. is directed vertically downward

e. all of the above

____ 59. Two identical masses, A and B, are each tied to the ends of strings A and B, respectively, and whirled

around in circles that are both oriented horizontally. The length of string A is twice that of string B. For

the tension in the strings to be the same, the ratio of the speeds of the masses (vA:vB) must be

a. 1.4:1 d. 1:2

b. 1:1.4 e. 1:1

c. 2:1

____ 60. A 1.0-kg and a 2.0-kg mass are each tied to the ends of identical strings and whirled around in circles that

describe a horizontal plane. The larger mass moves with a speed of 3.2 m/s. For the tension in the two

strings to be the same, the smaller mass must be moving with a speed of

a. 6.4 m/s d. 2.3 m/s

b. 4.5 m/s e. 1.6 m/s

c. 3.2 m/s

Name: ________________________ ID: A

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____ 61. The acceleration due to gravity on the surface of a planet having twice the Earth’s mass and twice its

radius would be

a. 39.2 m/s2 d. 4.9 m/s2

b. 19.6 m/s2 e. 2.45 m/s2

c. 9.8 m/s2

____ 62. Planet X has a radius 4 times that of Earth and the acceleration due to gravity at the surface of planet X is

4.9 m/s2. The mass of Planet X compared to Earth’s mass is

a. 16 times d. 2 times

b. 8 times e. the same

c. 4 times

____ 63. Planet X has a mass 8 times that of Earth and the acceleration due to gravity at its surface is 19.6 m/s2.

The radius of planet X compared to Earth is

a. 16 times d. 2 times

b. 8 times e. the same

c. 4 times

____ 64. With all other things being equal, had the value of the universal gravitational constant been twice its

present value, your weight would be

a. four times as great d. one-half as great

b. two times as great e. one-quarter as great

c. the same

____ 65. The force of gravity acting on a 10-kg object at an altitude equivalent to the Earth’s radius is

a. 49 N d. 5.0 N

b. 24 N e. 2.4 N

c. 9.8 N

____ 66. The relationship between the gravitational force of attraction, FG, of two objects on one another and their

separation distance r is best illustrated by which of the following graphs?

a. A d. D

b. B e. E

c. C

____ 67. A 5.0-kg cat travelling at 1.3 m/s [E] has a momentum of

a. 6.5 m/s [E] d. 3.8 m/s [W]

b. 6.5 m/s [W] e. none of the above

c. 3.8 m/s [E]

____ 68. A bobsleigh and its riders have a combined mass of 598 kg. They cross the finish line with a velocity of

125 km/h [forward]. The momentum of the team and the bobsleigh at the finish line is

a. 4.78 kg⋅m/s [forward] d. 7.48 × 104 kg⋅m/s [forward]

b. 17.2 kg⋅m/s [forward] e. 2.69 × 105 kg⋅m/s [forward]

c. 2.08 × 104 kg⋅m/s [forward]

____ 69. A bullet with a momentum of 2.8 kg⋅m/s [E] is travelling at a speed of 187 m/s. The mass of the bullet is

a. 0.015 g d. 67 g

b. 0.067 g e. not enough information

c. 15 g

Name: ________________________ ID: A

10

____ 70. A net force of 12 N changes the momentum of a 250-g ball by 3.7 kg⋅m/s. The force acts for

a. 0.31 s d. 3.2 s

b. 0.81 s e. 44 s

c. 1.2 s

____ 71. A 2200 kg car starts from rest and speeds up to 12 m/s in 5.2 s. The net force acting on the car is

a. 1.8 × 102 N d. 5.1 × 103 N

b. 4.2 × 102 N e. 1.4 × 105 N

c. 1.1 × 104 N

____ 72. A car with a mass of 1800 kg slows from 42 km/h [E] to 28 km/h [E]. The impulse from the brakes is

a. 2.5 × 104 N⋅s [E] d. 2.1 × 104 N⋅s [W]

b. 2.5 × 104 N⋅s [W] e. 7.0 × 103 N⋅s [W]

c. 2.1 ×104 N⋅s [E]

____ 73. A 1.5-kg bird is flying at a velocity of 18 m/s [22º above the horizontal]. The vertical component of its

momentum is

a. 10 m/s [up] (2 significant digits) d. 17 m/s [up]

b. 6.7 kg⋅m/s [up] e. none of the above

c. 25 kg⋅m/s [up]

____ 74. A 1.5-kg bird is flying west at a velocity of 18 m/s [22º above the horizontal]. The horizontal component

of its momentum is

a. 10 m/s [W] (2 significant digits) d. 17 m/s [W]

b. 6.7 kg⋅m/s [W] e. 17 kg⋅m/s [E]

c. 25 kg⋅m/s [W]

____ 75. A bullet with a mass of 28 g is fired from a 2.8-kg gun that is stationary, but free to recoil. After the bullet

is fired, the gun is observed to be moving at 1.4 m/s [left]. The velocity of the bullet is

a. 140 m/s [left] d. 71 m/s [left]

b. 140 m/s [right] e. 71 m/s

c. 71 m/s [right]

____ 76. A shell is fired from a gun mounted on a battleship. Which of the following statement is NOT true?

a. There will be a force to push the boat in the opposite direction of the shell.

b. The recoil spring on the barrel is to minimize the force on the deck of the ship.

c. Neglecting fluid friction, the momentum of the boat and shell have the same magnitude.

d. To calculate the speed of the boat we would need to know the recoil length of the gun.

e. A larger mass of shell will increase the recoil force felt by the ship.

____ 77. An arrow slows down from 43 m/s to 28 m/s as it passes through an apple. If the 493-g apple was

originally at rest and sped up to 0.44 m/s, the mass of the arrow is

a. 5.0 g d. 29 g

b. 7.7 g e. 7.7 kg

c. 14 g

____ 78. A boy throws a 15-kg ball at 4.7 m/s to a 65-kg girl who is stationary and standing on a skateboard. After

catching the ball, the girl is travelling at

a. 0 m/s d. 3.2 m/s

b. 0.88 m/s e. 4.7 m/s

c. 1.1 m/s

____ 79. A goalie standing on a frictionless surface catches a 270.0-g puck travelling at 95.0 km/h. After catching

the puck, the goalie is moving at 8.90 cm/s. The mass of the goalie (including equipment) is

a. 75.2 kg d. 84.2 kg

b. 79.8 kg e. 91.7 kg

c. 80.1 kg

Name: ________________________ ID: A

11

____ 80. A 55-kg person carrying a 5.0-kg ball slides along a horizontal frictionless surface. He tosses the ball

perpendicular to his direction of travel relative to himself.

a. His path will not change.

b. The ball will have a smaller angle from the original path than he will.

c. His speed does not change.

d. He speeds up.

e. He slows down.

____ 81. A 55-kg person carrying a 5.0-kg ball slides along a horizontal frictionless surface. He tosses the ball

forward.

a. His path will not change.

b. The ball will have a smaller angle from the original path than he will.

c. His speed does not change.

d. He speeds up.

e. He will most likely stop moving forward.

____ 82. A moving curling stone, A, collides head on with a stationary stone, B. Both stones are of identical mass.

If friction is negligible during this linear elastic collision,

a. stone A will slow down

b. after the collision, the momentum of stone B will be less than that of stone A

c. both stones will come to rest shortly after the collision

d. after the collision, the kinetic energy of the stone B will be less than that of stone A

e. after the collision, stone A will have a speed of zero

____ 83. If an arrow’s mass is doubled and the speed is halved, the momentum is changed by a factor of

a. 0.25 d. 2

b. 0.5 e. 4

c. 1

____ 84. A car (of constant mass) doubles its speed while driving up a hill sloped at 45º. The factor by which its

momentum changes is

a. 0 d. 3

b. 1 e. 4

c. 2

____ 85. A car (of constant mass) doubles its kinetic energy while driving down a hill sloped at 45º. The factor by

which its momentum changes is

a. 1 d. 2.8

b. 1.4 e. 4

c. 2

____ 86. A ball rolling down a hill doubles its speed but reduces its gravitational energy to one-fifth its starting

value. The factor by which its momentum changes is

a. 0.4 d. 2

b. 1 e. 10

c. 1.4

____ 87. A ball rolling down a hill doubles its momentum but reduces its gravitational energy to one-third its

starting value. The factor by which its kinetic energy changes is

a. 0.66 d. 4

b. 1 e. 6

c. 2

____ 88. A 72-kg girl on a skateboard doubles her kinetic energy coasting down a hill.

a. Momentum is conserved.

b. The increase in kinetic energy is offset by a decrease in momentum.

c. The momentum will also double.

d. Her momentum does not change.

e. none of the above

Name: ________________________ ID: A

12

____ 89. A sabotaged curling stone explodes into three pieces as it travels across the ice. Neglecting the force of

friction,

a. all three pieces will travel at the same speed

b. the magnitudes of the momenta for each piece will be the same

c. an external net force had to act on the stone to accelerate the three pieces

d. the components perpendicular to the original motion must add up to zero

e. momentum is not conserved because of the small explosive charge

____ 90. Two young sisters with a combined mass of 75 kg ride on a cart of mass 30.0 kg travelling at 2.0 m/s. If

they jump off together so they land with zero speed relative to the ground, the change in speed of the cart

is

a. 0 m/s d. 5.0 m/s

b. 2.0 m/s e. 7.0 m/s

c. 4.0 m/s

____ 91. A force of 4.0 N [S] is applied to a 2.0-kg block sliding west at 3.0 m/s on a smooth surface. The puck

will be moving exactly south-west after

a. 1.1 s d. 2.8 s

b. 1.5 s e. 4.2 s

c. 2.1 s

____ 92. A woman of mass M is at rest on a frictionless skateboard of negligible mass. She throws a cement block

of mass m with a velocity v relative to the ground. After the throw, her velocity relative to the ground is

a. –mv d. Mv

b. −mv

M+me. −

mv

M

c.mv

M

____ 93. A two-dimensional collision occurs as shown below.

Which vector below most closely represents the new velocity of P?

a. A d. D

b. B e. E

c. C

Name: ________________________ ID: A

13

____ 94. Two objects of equal mass with the speeds indicated by the vectors below, collide and stick together.

Which vector below best represents the velocity of the combined objects after the collision?

a. A d. D

b. B e. E

c. C

____ 95. When you catch a fast-moving baseball, your hand hurts less if you move it in the direction of the ball

because

a. the ball changes momentum more slowly

b. the force applied is smaller

c. you decrease the impulse required to stop the ball

d. two of A, B, and C

e. all of A, B, and C

____ 96. When a baseball bounces on the ground

a. momentum is conserved in the Earth–ball system

b. the impulse is the same as if the baseball landed without bouncing

c. it leaves the surface with the same speed that it impacted the surface with

d. kinetic energy is imparted to the ground

e. the force applied by the surface is smaller than if it didn't bounce

Name: ________________________ ID: A

14

____ 97. Two objects strike a glancing blow. The diagram below shows the momenta of some of the objects are

shown before and after the collision.

Which vector best represents the momentum of object P after the collision?

a. A d. D

b. B e. E

c. C

____ 98. A gun is mounted on a wooden plank. The plank is stationary and is mounted on frictionless wheels. A

heavy wooden block is set in front of the gun, and the gun is fired into the wooden block, which then

slows to a stop due to friction between the block and the plank.

a. The plank does not move.

b. Momentum is not conserved because of the frictional force.

c. The speed of the plank is zero immediately after the collision between the bullet and

block.

d. The plank will have shifted position relative to its starting point.

e. Kinetic energy is conserved because the speed of the system is zero before and after the

collision.

____ 99. Without knowing any other information than is given in the diagram below, which deductions could be

true?

a. The eastbound car was travelling faster.

b. The northbound car was lighter.

c. Both cars had the same speed.

d. two of A, B, and C

e. all of A, B, and C

Name: ________________________ ID: A

15

____ 100. A student wishes to measure very small distances using the interference pattern generated by

monochromatic light. The pattern must be widely spaced with numerous fringes and clearly defined.

Which of the following experimental set-ups would generate the most suitable pattern?

a. blue light and a wide single slit

b. red light and a narrow single slit

c. blue light and narrow double slits spaced close together

d. red light and narrow double slits spaced close together

e. red light and narrow double slits spaced far apart

____ 101. Light from a monochromatic source passes through a single slit and illuminates a screen. Which of the

following patterns would best illustrate the interference pattern seen on the screen?

a. d.

b. e.

c.

____ 102. A single slit is used to create an interference pattern on a screen using light. Consider the statements that

follow with respect to the pattern generated:

I. A longer wavelength of light generates a wider central maximum.

II. When using white light, the outer fringes are coloured.

III. A narrower slit generates a wider central maximum.

Which of the above statements is/are correct?

a. I only d. I, II, and III

b. I and II only e. II only

c. I and III only

____ 103. A sonar transmitter produces 14 kHz waves in water, creating the intensity pattern shown above. The

dark lines represent positions over which the intensity of the sound is constant. The intensity pattern is

analogous to the effect of a single-slit interference pattern in optics. Such a device functions best when

the central maximum is very narrow. Which of the following combination of changes will produce a

central maximum that is the narrowest?

a. same frequency but halve the size of the vibrating surface

b. double the frequency and double the size of the vibrating surface

c. halve the frequency and double the size of the vibrating surface

d. double the frequency and halve the size of the vibrating surface

e. halve the frequency and halve the size of the vibrating surface

Name: ________________________ ID: A

16

____ 104. A sonar transmitter, with a source width of 0.450 m, produces waves in water creating the intensity

pattern shown above. The speed of sound in the water is 1.50 × 103 m/s. The dark lines represent

positions over which the intensity of the sound is constant. The intensity pattern is analogous to the effect

of a single-slit interference pattern in optics. What is the frequency of the sound source?

a. 1.11 kHz

b. 3.33 kHz

c. 10.0 kHz

d. 30.0 kHz

e. cannot be determined from the data available

____ 105. Pattern A, a single-slit interference pattern viewed on a screen using a monochromatic source, is changed

to pattern B. Both are shown below.

Which of the following changes could explain the change in the pattern?

a. The screen is moved closer.

b. The width of the slit is increased.

c. The frequency of the source is decreased.

d. The wavelength of the source is decreased.

e. The intensity of the source is increased.

____ 106. Light from a monochromatic source shines on a single, narrow slit. Which of the intensity patterns shown

below best illustrates the interference pattern observed?

a. d.

b. e.

c.

____ 107. A single-slit diffraction pattern is produced when red light illuminates a narrow slit, as in Figure I below.

A second identical slit is then placed between the source and the first slit, as shown in Figure II.

Which of the following changes would occur in the pattern observed?

a. There would be twice as many maxima.

b. The maxima are dimmer.

c. The minima are farther apart.

d. Every second maximum is eliminated.

e. The pattern becomes a single bright line.

Name: ________________________ ID: A

17

____ 108. The diagram above shows a single slit with lines marking the direction to a point P in the diffraction

pattern generated. X and Y are the edges of the slit. The possible value for the path difference, PY – PX,

that places P at the first intensity minimum adjacent to the central maximum is

a.λ

2d. 2λ

b. λ e.5λ

2

c.3λ

2

____ 109. The diagram below shows a single slit with lines marking the direction to a point P in the diffraction

pattern generated. X and Y are the edges of the slit. The possible value for the path difference, PY – PX,

that places P at the second intensity maximum located away from the central maximum is

a.λ

2d. 2λ

b. λ e.5λ

2

c.3λ

2

____ 110. Monochromatic red light is shone from above on two soap films, A and B, as shown below. An observer

at position X observes that film A appears uniformly red while film B has alternate, equally spaced, red

and black bands.

Which statement best explains these observations?

a. Film A has a thickness of λ

4 and film B has a thickness of

λ

2.

b. Film A has a thickness of λ

2 and film B has a thickness of

λ

4.

c. Film A has a thickness much less than λ and film B has a thickness of λ

2.

d. Film A has a constant thickness and film B has a variable thickness.

e. Film A has a variable thickness and film B has a constant thickness.

Name: ________________________ ID: A

18

____ 111. Monochromatic light strikes a thin film normal to the surface. To obtain the first bright reflected

maximum, the thickness of the film must be

a. much less than λ d.3λ

4

b.λ

4e. λ

c.λ

2

____ 112. Monochromatic light strikes a thin film normal to the surface. To obtain the first reflected minimum, the

thickness of the film must be

a. much less than λ d.3λ

4

b.λ

4e. λ

c.λ

2

____ 113. The interference pattern created by monochromatic light in an air wedge is used to measure the thickness

of an object. Which of the following changes would cause the spacing between adjacent fringes to

increase?

a. Use a light source with a higher frequency.

b. Increase the thickness of the object being measured.

c. Use a light source with a longer wavelength.

d. Use a shorter air wedge.

e. None of the above.

____ 114. A thin layer of oil floating on water produces the spectral colours in much the same way that

a. raindrops produce a rainbow

b. a diffraction grating causes an interference pattern

c. a triangular prism cause refraction and disperses the colours

d. a soap bubble reflects the spectral colours

e. both a. and d.

____ 115. Anti-glare coatings on most lenses appears to have a purplish tint. This is due to the fact that

a. it is difficult to manufacture a coating thin enough to absorb the violet glare

b. most coatings are chosen with a thickness that corresponds to eliminating the glare in the

middle of the visible spectrum

c. the material used for the coatings contains pigments which have a purple tint

d. our eyes are most sensitive to this region of the visible spectrum

e. the blue light scattered through the atmosphere has the brightest intensity when it strikes

the coating

____ 116. A thin, transparent coating is placed on a lens in order to reduce the reflection of the green component of

white light. The lens is made of plastic with an index of refraction of 1.65 and the film has an index of

refraction of 1.35. To minimize the reflected green light, the minimum thickness of the film, in terms of

the wavelength of the light in the film, is

a. much less than λ

4d. λ

b.λ

4e. greater than λ

c.λ

2

Name: ________________________ ID: A

19

____ 117. What is the wavelength of a radio wave (travelling at 3.00 × 108 m/s) from a local radio station that

broadcasts at 1050 kHz?

a. 286 km d. 286 m

b. 1.05 × 103 m e. 0.286 m

c. 572 m

____ 118. A local radio station broadcasts signals (travelling at 3.00 × 108 m/s) whose wavelength is 3.102 m. At

what frequency does this station broadcast?

a. 96.7 MHz d. 9.31 × 108 Hz

b. 93.1 MHz e. 9.67 × 107 MHz

c. 96.7 kHz

ID: A

1

Exam Review

Answer Section

MULTIPLE CHOICE

1. ANS: C REF: K/U OBJ: 1.4 LOC: FM1.03

2. ANS: D REF: K/U OBJ: 1.1 LOC: FM1.02



5. ANS: B REF: K/U OBJ: 1.1 LOC: FM1.01

6. ANS: A REF: K/U OBJ: 1.1 LOC: FM1.01





11. ANS: E REF: K/U OBJ: 1.3 LOC: FM1.02

































ID: A

2























66. ANS: D REF: K/U, I OBJ: 3.3 LOC: FM1.06

67. ANS: E REF: C OBJ: 5.1 LOC: EM1.01

68. ANS: C REF: K/U OBJ: 5.1 LOC: EM1.01


70. ANS: A REF: K/U OBJ: 5.1 LOC: EM1.01

71. ANS: D REF: K/U OBJ: 5.1 LOC: EM1.01

72. ANS: E REF: K/U OBJ: 5.1 LOC: EM1.01

73. ANS: E REF: C OBJ: 5.1 LOC: EM1.01


75. ANS: B REF: K/U OBJ: 5.2 LOC: EM1.03

76. ANS: D REF: MC OBJ: 5.2 LOC: EM3.01






82. ANS: E REF: MC OBJ: 5.3 LOC: EM1.04










ID: A

3


93. ANS: B REF: I OBJ: 5.4 LOC: EM1.03

94. ANS: D REF: I OBJ: 5.4 LOC: EM1.03

95. ANS: D REF: MC OBJ: 5.1 LOC: EM1.01


97. ANS: A REF: I OBJ: 5.4 LOC: EM1.03


99. ANS: E REF: MC OBJ: 5.4 LOC: EM1.03

100. ANS: D REF: K/U OBJ: 10.2 LOC: WA2.02

101. ANS: B REF: I OBJ: 10.2 LOC: WA1.04

102. ANS: D REF: I OBJ: 10.2 LOC: WA2.02

103. ANS: B REF: MC OBJ: 10.2 LOC: WA2.02

104. ANS: C REF: MC OBJ: 10.2 LOC: WA2.04

105. ANS: C REF: I OBJ: 10.2 LOC: WA1.04

106. ANS: A REF: K/U OBJ: 10.2 LOC: WA1.04

107. ANS: B REF: I OBJ: 10.2 LOC: WA2.02

108. ANS: B REF: K/U OBJ: 10.2 LOC: WA2.02

109. ANS: E REF: K/U OBJ: 10.2 LOC: WA2.02


111. ANS: B REF: K/U OBJ: 10.4 LOC: WA1.03

112. ANS: A REF: K/U OBJ: 10.4 LOC: WA1.03

113. ANS: C REF: I OBJ: 10.4 LOC: WA1.03




117. ANS: D REF: MC OBJ: 10.8 LOC: WA1.02

118. ANS: A REF: MC, C OBJ: 10.8 LOC: WA1.02

ID: A Exam Review [Answer Strip]

_____ 1.C

_____ 2.D

_____ 3.C

_____ 4.D

_____ 5.B

_____ 6.A

_____ 7.C

_____ 8.B

_____ 9.B

_____ 10.D

_____ 11.E

_____ 12.C

_____ 13.A

_____ 14.E

_____ 15.E

_____ 16.C

_____ 17.B

_____ 18.B

_____ 19.D

_____ 20.E

_____ 21.A

_____ 22.C

_____ 23.A

_____ 24.C

_____ 25.C

_____ 26.E

_____ 27.E

_____ 28.A

_____ 29.B

_____ 30.A

_____ 31.E

_____ 32.A

_____ 33.D

_____ 34.E

_____ 35.C

_____ 36.D

_____ 37.E


_____ 38.B

_____ 39.E

_____ 40.D

_____ 41.B

_____ 42.E

_____ 43.E

_____ 44.A

_____ 45.B

_____ 46.E

_____ 47.B

_____ 48.D

_____ 49.C

_____ 50.C

_____ 51.B

_____ 52.D

_____ 53.D

_____ 54.B

_____ 55.B

_____ 56.B

_____ 57.B

_____ 58.E

_____ 59.A

_____ 60.B

_____ 61.D

_____ 62.B

_____ 63.D

_____ 64.B

_____ 65.B

_____ 66.D

_____ 67.E

_____ 68.C

_____ 69.C

_____ 70.A

_____ 71.D

_____ 72.E

_____ 73.E

_____ 74.C

_____ 75.B

_____ 76.D

_____ 77.C

_____ 78.B

_____ 79.B


_____ 80.D

_____ 81.A

_____ 82.E

_____ 83.C

_____ 84.C

_____ 85.B

_____ 86.D

_____ 87.D

_____ 88.E

_____ 89.D

_____ 90.D

_____ 91.B

_____ 92.E

_____ 93.B

_____ 94.D

_____ 95.D

_____ 96.A

_____ 97.A

_____ 98.D

_____ 99.E

_____100.D

_____101.B

_____102.D

_____103.B


_____104.C

_____105.C

_____106.A

_____107.B

_____108.B

_____109.E

_____110.D

_____111.B

_____112.A

_____113.C

_____114.D

_____115.B

_____116.B

_____117.D

_____118.A

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