Free Printable Physics exam 1 review

1.

What are the SI units of mass?

a)

kg

b)

g

c)

m

d)

s

e)

m/s

2.

What are the SI units of force?

a)

N

b)

kg

c)

g

d)

m

e)

s

3.

What are the SI units of speed or velocity?

a)

m/s

b)

m/s/s

c)

s

d)

m

e)

s/m

4.

What are the SI units of acceleration?

a)

m/s/s

b)

m/s

c)

m

d)

s

e)

s/m

5.

Using SI units, what is the weight of a 4 kg object?

a)

-39.2N

b)

-39.2 kg

c)

-29.4 N

d)

-9.8 N

e)

9.8 N

6.

After falling from rest on Earth and being in free fall for 2.0 s, how fast is a pencil falling? To do this, you would use v = gt where g = -9.8 m/s/s. Think about what units make sense for how fast something is moving.

a)

-19.6 m/s

b)

-9.8 m/s

c)

-19.6 m/s/s

d)

-4.9 m/s/s

e)

-4.9 m/s

7.

What is the horizontal acceleration in SI units of a vehicle that changes its velocity from 32 m/s to 12 m/s in 2 s?

a)

-10

b)

10

c)

-20

d)

20

e)

44

8.

What is the net force in SI units on a 1 kg bucket of Halloween candy that is lifted with a vertical force of 9.8 N? You need to be able to do lifting problems.

a)

0 N

b)

9.8 N

c)

19.6 N

d)

-9.8 N

9.

What is proper name for the force exerted on an object by the surface it rests on perpendicular to the surface?

a)

normal force

b)

friction force

c)

gravity

d)

surface force

10.

What is the acceleration of a 2.0 kg kitty being accelerated up with a net force of 3 N? You have net force and mass. You use Fnet = ma. Solve for a.

a)

3/2

b)

2/3

c)

6

d)

3

e)

2

11.

What is the acceleration of a 0.5 kg kitty being accelerated up with an applied force of 11 N? You have applied force and mass. You need to find net force.

a)

12.2

b)

4.9

c)

6.1

d)

22

e)

0.5

12.

What net force is required to accelerate a 6.0 kg box of John Green books at 2 m/s/s?

a)

6 N

b)

2 N

c)

1/3 N

d)

12 N

e)

8 N

13.

Going 40 m/s on the expressway, you look down for 2 seconds. How far did you go in those 2 seconds?

a)

80 m

b)

80 m/s

c)

40 m

d)

20 m

e)

80 m/s/s

14.

If a book with a mass of 2 kg is sitting on a horizontal table, what is the normal force on the book?

a)

19.6 N

b)

19.6 kg

c)

2000 g

d)

-19.6 N

e)

4.9 N

15.

Match the following:

a)

Equilibrium

1.

net force is 0

b)

Acceleration

2.

unbalanced forces

c)

Inertia

3.

tendency not to accelerate

d)

Force

4.

measured in N

e)

Mass

5.

measured in kg

16.

The variable g represents ...

a)

acceleration due to gravity

b)

force of gravity

c)

SI unit of mass

d)

height of fall

17.

Constant velocity means ...

a)

getting faster or slower

b)

going the same distance each second

c)

increasing velocity by the same amount each second

d)

constant acceleration

18.

The slope of a position vs. time graph means ...

a)

velocity

b)

time

c)

displacement

d)

acceleration

19.

$\frac{opp}{hyp\ }=\ ?$

a)

cos θ

b)

sin θ

c)

tan θ

d)

tan^-1 θ

20.

$\frac{adj}{hyp\ }=\ ?$

a)

cos θ

b)

sin θ

c)

tan θ

d)

tan^-1 θ

21.

How do you find the opp side given H and $\theta$ ?

a)

Hcos θ

b)

Hsin θ

c)

Htan θ

d)

$\frac{\sin\theta}{H}$

e)

$\frac{\cos\theta}{H}$

22.

Two projectiles are fired horizontally from the same height but with different velocities as shown in the picture. Which one will hit the ground first?

a)

left one

b)

right one

c)

neither, same time

23.

How do you find the adj side given H and $\theta$ ?

a)

Hcos θ

b)

Hsin θ

c)

Htan θ

d)

$\frac{\sin\theta}{H}$

e)

$\frac{\cos\theta}{H}$

24.

Two projectiles are fired horizontally with the same velocity but from different heights as shown in the picture. Which one will hit the ground first?

a)

left one

b)

right one

c)

neither, same time

25.

The horizontal component of a projectile's velocity ____ as it flies.

a)

decreases

b)

increases

c)

remains constant

26.

A cannon ball is launched horizontally. What action would increase the time of flight of the cannon ball?

a)

launch from a taller cliff

b)

launch at a higher speed

c)

both

d)

neither

27.

Assuming no air resistance, this is the only force that is acting on an object while it is undergoing free fall.

a)

air

b)

gravity

c)

there are no forces

28.

True or False: The vertical velocity component of a horizontal projectile is the same as a dropped ball.

a)

True

b)

False

29.

The horizontal component v_x of any projectile is constant because _____.

a)

The horizontal component v_x is affected by gravity.

b)

There is no horizontal force acting on the projectile assuming no air resistance.

c)

The horizontal component v_x increases over time.

d)

The horizontal component v_x decreases over time.

30.

How much time does it take an object to hit the ground when launched horizontally from a height of 4.3 m?

a)

1.93 seconds

b)

1.11 seconds

c)

0.91 seconds

d)

0.94 seconds

e)

1.51 seconds

31.

If you throw a ball straight up in the air at 30 m/s, how much time in seconds does it take to get the peak?
Enter the answer with 2 correct decimal places. No units.

32.

What is the definition of 1 N?

a)

100 g

b)

m·a

c)

$1\ kg\cdot1\ \frac{m}{s^2}$

d)

$1\ kg\div1\ \frac{m}{s^2}$

33.

This property of matter states that mass has a resistance to acceleration

a)

inertia

b)

force

c)

net force

d)

atomic number

34.

(Check all that could apply) Equilibrium means an object is ____.

a)

accelerating

b)

going a constant velocity

c)

at rest

35.

Why do you feel thrown forward when someone slams on the brakes in a vehicle?

a)

you are not thrown forward, you feel pinned to your seat

b)

inertia

c)

force pushing you forward

d)

force pushing you backward

36.

If your box on the floor is at rest, the force from the floor is _____ the force of gravity on the box.

a)

less than

b)

equal to

c)

greater than

d)

need more information

37.

True or False: When you pick up speed, you gain inertia.

a)

True

b)

False

38.

How much is the net force?

a)

350 N

b)

100 N

c)

250 N

d)

450 N

39.

What kind of motion will this crate have?

a)

at rest

b)

acceleration

c)

constant velocity

40.

How much is the net force on the crate?

a)

100 N

b)

0 N

c)

200 N

d)

250 N

41.

What kind of motion will the crate have?

a)

acceleration

b)

equilibrium

42.

What kind of motion will this crate have?

a)

acceleration

b)

equilibrium

c)

need more information

43.

What is the acceleration the crate?

a)

$3\ \frac{m}{s^2}$

b)

$2\ \frac{m}{s^2}$

c)

$4\ \frac{m}{s^2}$

d)

$1\ \frac{m}{s^2}$

44.

Which diagram shows the correct vector for the force of gravity on an incline?

a)

b)

c)

45.

Which diagram shows the correct angle A that is the same as $\theta$ ?

a)

b)

c)

46.

Which diagram shows the correct components of mg?

a)

b)

c)

47.

What is the weight of a 3 kg mass?

a)

-39.6 N

b)

-19.6 N

c)

-9.8 N

d)

-29.4 N

e)

3 kg

48.

To lift an object, you have to exert a force bigger than ____.

a)

the weight

b)

the mass

c)

the friction

49.

To push an object across the floor, you have to exert a force bigger than ____.

a)

the weight

b)

the mass

c)

the friction

50.

If you accelerate a 2 kg object at $6\ \frac{m}{s^2}$ , what net force was applied?

a)

3 N

b)

6 N

c)

12 N

d)

19.6 N

e)

1/3 N

51.

If you lift a bag that weighs 10 N with a force of 24 N, what is the net force on the bag?

a)

2.4 N

b)

34 N

c)

10 N

d)

14 N

e)

24 N

52.

If you want to hold a bag that weighs 10 N at rest, what force must you apply on the bag?

a)

less than 10 N

b)

10 N

c)

more than 10 N

53.

You lift a 2-kg bucket with a force of 40.4 N. The weight of the bucket is -19.6 N.

m (bucket) = (a) F_g (bucket) = (b) Force applied on bucket = (c)

Choose from the below words

2 kg

-19.6 N

40.4 N

60 N

0.8 N

14.4 N

none of these

20.8 N

54.

You lift a 3-kg bucket with a force of 50 N. The weight of the bucket is -29.4 N.

m (bucket) = (a) F_g (bucket) = (b) Force applied on bucket = (c)

Choose from the below words

3 kg

-29.4 N

50 N

60 N

0.8 N

14.4 N

none of these

-30.4 N

20.6 N

55.

You lift a 2-kg bucket with a force of 40.4 N. The weight of the bucket is -19.6 N.

m (bucket) = (a) F_g (bucket) = (b) Force applied on bucket = (c) Net force on bucket = (d)

Choose from the below words

2 kg

-19.6 N

40.4 N

20.8 N

60 N

0.8 N

14.4 N

none of these

56.

You lift a 4-kg bucket with a force of 50.2 N. What is the net force on the bucket?

m (bucket) = (a) F_g (bucket) = (b) Force applied on bucket = (c) Net force on bucket = (d)

Choose from the below words

4 kg

-39.2 N

50.2 N

20 N

0.8 N

1.4 N

16.6 N

11 N

89.4 N

14 N

57.

You lift a 3.2-kg bucket with a force of 48 N. What is the net force on the bucket? F_net = (a)

Choose from the below words

20 N

0.8 N

1.4 N

none of these

89.4 N

16.6 N

45.36 N

31.36 N

11.0 N

18.2 N

58.

You are pushing a refrigerator with a force of 300 N. It is not moving. How much friction is there?

a)

200 N

b)

200 kg

c)

300 N

d)

1960 N

e)

301 N

59.

You are pushing a refrigerator with a force of 300 N. It is going a constant velocity. How much friction is there?

a)

200 N

b)

200 kg

c)

300 N

d)

1960 N

e)

301 N

60.

What is happening in this simulation photo?

a)

Refrigerator is at rest because the force of friction is equal to the applied force.

b)

Refrigerator is at rest because the force of friction is bigger than the applied force.

c)

Refrigerator is going a constant velocity because the force of friction is equal to the applied force.

d)

Refrigerator is accelerating because the force of friction is smaller than the applied force.

61.

A 10-N book is being pushed right on a table with a force of 2 N at a constant speed. Label all 4 forces.

a)

0 N

b)

-4 N

c)

10 N

d)

-10 N

e)

2 N

f)

-2 N

1

2

3

4

1)

2)

3)

4)

62.

A box is being pushed right across the floor.

Label each force vector with the correct variable if the box is moving.

a)

Fsmax

b)

Fg

c)

Fn

d)

Fk

e)

Fa

1

2

3

4

1)

2)

3)

4)

63.

The coefficient of friction changes between two items when (a) change(s).

Choose from the below words

materials of surfaces

weight

surface area

materials and weight

normal force

64.

The maximum static friction is usually (a) kinetic friction.

Choose from the below words

greater than

less than

equal to

unrelated to

0 compared to

65.

You push a box that weighs 50 N with a horizontal force of 35 N at a constant velocity on a horizontal surface. What is the coefficient of kinetic friction?

a)

0.7 N

b)

15

c)

0.7

d)

1.4

e)

1.4 N

66.

Kalina holds a 200 N dumbbell at rest. He must exert ____.

a)

200 N

b)

more than 200 N

c)

less than 200 N

67.

Match each force with its 3rd law pair.

Categorize the following

force of chair on foot

force of locker on fist

force of chair on earth

force of me on earth

force of earth on chair

force of foot on chair

force of fist on locker

force of earth on me

68.

Your cat that weighs 12 N is at rest on the ground. You are pulling up on him with 3.0 N of force. How much is the normal force on the cat?

a)

9 N

b)

15 N

c)

12 N

d)

3 N

e)

0 N

69.

The the force applied is 60 N, what is the horizontal component of that force?

a)

52 N

b)

60 N

c)

90 N

d)

30 N

e)

49 N

70.

If the force applied is 60 N, what is the vertical component of that force?

a)

52 N

b)

60 N

c)

90 N

d)

30 N

e)

49 N

71.

If the weight of the box is 58.8 N, the horizontal component of the applied force is 52 N, and the vertical component of the applied force is 30 N, how much is the normal force?

a)

30 N

b)

58.8 N

c)

52 N

d)

28.8 N

e)

110.8 N

72.

If you have these 4 forces on a box and the box is accelerating to the right, how do you find the net force? F_A + (a)

Choose from the below words

$F_k$

F_N

mg

\mu_k

\mu_s

F_A

73.

A block is sliding down an incline. Drag the labels to the correct vectors.

a)

static friction

b)

mgtan(30)

c)

mgcos(30)

d)

mgsin(30)

e)

mg

f)

normal

g)

kinetic friction

1

2

3

4

5

1)

2)

3)

4)

5)

74.

A child pulls on a sled with a force of 40 N at an angle of 30° above the horizontal.
What is the x component of this force?

a)

40cos(30)

b)

40sin(30)

c)

40/cos(30)

d)

40/sin(30)

e)

40tan(30)

75.

You (a) wear a seat belt because if your vehicle has to stop suddenly, (b)

Choose from the below words

you will fly backwards

you will also stop immediately

should always

should never

you will continue at that velocity

76.

Match the following

a)

1.

F_net = -100 N

b)

2.

F_net = 100 N

c)

3.

F_net = 200 N

d)

4.

F_net = 150 N

e)

5.

F_net = 0 N

77.

When a car accelerates from rest, which variable is 0?

a)

$\Delta y$

b)

$\Delta x$

c)

$v_i$

d)

$v_f$

e)

$v_{avg}$

78.

When you drop a ball from a height of 1 m, which variable represents 1m?

a)

$\Delta y$

b)

$\Delta x$

c)

$v_i$

d)

$v_f$

e)

$v_{avg}$

79.

When a plane accelerates from rest to 50 m/s, what variable represents 50 m/s?

a)

$\Delta y$

b)

$\Delta x$

c)

$v_i$

d)

$v_f$

e)

$v_{avg}$

80.

If an object has an acceleration of -9.8 m/s/s, what do you know about the object’s motion?

a)

need more information

b)

object is speeding up

c)

object is slowing down

d)

object is going a constant velocity

81.

Convert 83 cm to m.

a)

0.083

b)

0.83

c)

8.3

d)

830

e)

8300

82.

What is Kyle's average velocity if he goes 100 m in 16 s?

a)

7.05 m/s

b)

5.15 m/s

c)

0.16 m/s

d)

1600 m/s

e)

6.25 m/s

83.

Bryce walks at a constant rate of 0.8 m/s for 30 s. How far did he go in this time?

a)

24 m

b)

37.5 m

c)

0.03 m

d)

32 m

e)

18 m

84.

When you drop a ball from rest on Earth, what is its vertical velocity after 2 s in m/s?

a)

-1

b)

-29.4

c)

-4.9

d)

-19.6

e)

-9.8

85.

When you drop a ball from rest on Earth, how far has it fallen after 1 s in meters?

a)

-11

b)

-12.4

c)

-4.9

d)

-19.6

e)

-9.8

86.

The variable g represents ...

a)

time to fall 1 m

b)

the SI unit for mass

c)

force of gravity

d)

acceleration due to gravity

87.

Constant acceleration means ...

a)

going only in 1 direction

b)

going the same distance each second

c)

increasing velocity by the same amount each second

d)

constant velocity

88.

This position graph shows

a)

slowing down

b)

speeding up

c)

constant velocity

89.

This position graph shows

a)

slowing down

b)

speeding up

c)

constant velocity

90.

This velocity graph shows

a)

slowing down

b)

speeding up

c)

constant velocity

91.

You drop one ball and launch another horizontally at the same time from the same height. What happens?

a)

The dropped ball lands first

b)

The horizontally launched ball lands first

c)

Not enough information

d)

They land at the same time

92.

True or False: When a ball rolls off a table, the x-velocity depends on the y-velocity.

a)

True

b)

False

93.

Using SI units, what is the weight of a 2 kg object? Provide the SI units after your answer.

(a)

94.

What is the acceleration of a 1 kg ball thrown up in the air on Earth when it is at its peak in SI units?

a)

-9.8

b)

1

c)

9.8

d)

0

e)

10

95.

After falling from rest on Earth and being in free fall for 2.0 s, how fast is a pencil falling? Provide SI units after your answer.

(a)

96.

What are the SI units of mass? Use the abbreviation for the unit.

(a)

97.

What are the SI units of acceleration? Use the abbreviation for the unit. Many correct formats are acceptable.

(a)

98.

How long does it take a 2 kg object on Earth to fall 1 meter? Use 3 correct decimal places with SI units after your answer.

(a)

99.

What is the horizontal acceleration in SI units of a vehicle that changes its velocity from 32 m/s to 12 m/s in 2 s? Do not provide SI units after your answer. Just enter the number.

(a)

100.

What is the net force in SI units on a 1 kg bucket of Halloween candy that is lifted with a vertical force of 9.8 N? Provide SI units after your answer.

(a)

101.

What is proper name for the force exerted on an object by the surface it rests on perpendicular to the surface?

(a)

102.

What is the acceleration of a 2.0 kg kitty being accelerated up with a net force of 3 N? Do not provide SI units after your answer. Just enter the number.

(a)

103.

When dragging a box, the coefficient of static friction is 0.5. How much force is required to get a 3 kg box started moving? Provide SI units after your answer.

(a)

104.

What net force is required to accelerate a 6.0 kg box of John Green books at 2 m/s/s? Provide SI units after your answer.

(a)

105.

What is the net force on an object moving at a constant velocity?

a)

positive

b)

negative

c)

zero

d)

not enough information

106.

What is the coefficient of static friction if it takes Jacob 5 N of force to start a 10 N box moving across the floor at a constant velocity? Provide SI units after your answer.

(a)

107.

What are the SI units of speed or velocity? Abbreviate units.

(a)

108.

Which graph of velocity versus time shows speeding up? Check all that apply.

a)

A

b)

B

c)

C

d)

D

e)

E

109.

Going 40 m/s on the expressway, you look down for 2 seconds. How far did you go in those 2 seconds? Provide SI units after your answer.

(a)

110.

Han Solo speeds up from 10 m/s to 30 m/s in the Millennium Falcon in 3 seconds. How far did he go? Provide SI units after your answer.

(a)

111.

If a book with a mass of 2 kg is sitting on a horizontal table, what is the normal force on the book? Provide SI units after your answer.

(a)

112.

True or False: Assuming no air resistance, all objects accelerate at the same rate when they fall.

a)

True

b)

False, because heavier objects accelerate faster

c)

False, because lighter object accelerate faster

d)

False, because denser objects accelerate faster

Physics exam 1 review

Total questions: 112

Worksheet time: 6hrs 20mins

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