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Unit 3: Newton's Laws of Motion Exam Review

Total questions: 206

Worksheet time: 5hrs 28mins

Name
Class
Date
1.
Name the missing force....
a)
weight force
b)
normal force
c)
frictional force
d)
tension force
2.
Name the missing force...
a)
frictional force
b)
weight force
c)
thrust
d)
buoyant force
3.

Whenever an object is moving, there is always this force opposing the motion:

a)

inertia

b)

momentum

c)

friction

d)

applied force

4.

The force that keeps objects on top of surfaces instead of letting them sink into the surface is known as:

a)

normal

b)

abnormal

c)

static

d)

inertia

5.

What is the NET FORCE of this diagram?

a)

17 N, right

b)

17 N, left

c)

23 N, right

d)

12 N, up

6.

What forces are on a leopard laying on a log?

a)

Fg & Fapp

b)

Fb & Fg

c)

Fg & FN

d)

Ff & FN

7.
Which one is balanced?
a)
top
b)
bottom
c)
both
8.
What is the net force?
a)
17 N Right
b)
3 N Right
c)
3 N Left
d)
17 N Left
9.

A rightward force is applied to a dresser to accelerate it to the right across the bedroom floor.

a)
b)
c)
d)
10.

A hockey puck glides to the right across the ice at a constant speed.

a)
b)
c)
d)
11.

Which freebody diagram best represents a bookbag resting on the classroom floor?

a)
b)
c)
d)
12.

Which freebody diagram best represents a desk being pushed across the classroom floor?

a)
b)
c)
d)
13.

What is the net force?

a)

3 N Right

b)

3 N Left

c)

17 N Right

d)

17 N Left

14.
Name the missing force...
a)
spring force
b)
weight force
c)
normal force
d)
buoyant force
15.
Name the missing force...
a)
tension force
b)
frictional force
c)
normal force
d)
spring force
16.

Newton's Law of Inertia (first law) describes the motion of-

a)
Objects at rest only
b)
Objects in motion only
c)
Objects at rest and objects that are in motion
d)

Objects that accelerate

17.
Which one of Newton’s Laws of Motion best explains why the dishes do not move when the table cloth is removed?
a)

Law of Inertia

b)

Law of Acceleration

c)

Law of Action-Reaction

d)

Law of Gravitation

18.
Which law best explains why the coin sitting on top of the ring falls directly into the jar below because it wants to remain at rest?
a)

Law of Inertia

b)

Law of Acceleration

c)

Law of Action - Reaction

d)

Law of Gravitation

19.
Which law best explains why people remain in motion when a car crashes, if they are not wearing a seat belt?
a)

Law of Inertia

b)

Law of Acceleration

c)

Law of Action - Reaction

d)

Law of Gravitation

20.
Which law best explains why more force must be applied to the bowling ball to make it accelerate at the same rate as the tennis ball. 
a)

Law of Inertia

b)

Law of Acceleration

c)

Law of Action - Reaction

d)

Law of Gravitation

21.

Newton's Law of Inertia (first law) describes the motion of-

a)
Objects at rest only
b)
Objects in motion only
c)
Objects at rest and objects that are in motion
d)

Objects that accelerate

22.
Which one of Newton’s Laws of Motion best explains why the dishes do not move when the table cloth is removed?
a)

Law of Inertia

b)

Law of Acceleration

c)

Law of Action-Reaction

d)

Law of Gravitation

23.
Which law best explains why the coin sitting on top of the ring falls directly into the jar below because it wants to remain at rest?
a)

Law of Inertia

b)

Law of Acceleration

c)

Law of Action - Reaction

d)

Law of Gravitation

24.
Which law best explains why people remain in motion when a car crashes, if they are not wearing a seat belt?
a)

Law of Inertia

b)

Law of Acceleration

c)

Law of Action - Reaction

d)

Law of Gravitation

25.
Which law best explains why more force must be applied to the bowling ball to make it accelerate at the same rate as the tennis ball. 
a)

Law of Inertia

b)

Law of Acceleration

c)

Law of Action - Reaction

d)

Law of Gravitation

26.

An object at rest will remain at rest, and an object in motion will remain in motion, unless acted upon by an unbalanced force.

a)

Law of Inertia

b)

Law of Acceleration

c)

Law of Action - Reaction

27.

Force is directly proportional to acceleration but inversely proportional to an object's mass.

a)

Law of Inertia

b)

Law of Acceleration

c)

Law of Action - Reaction

28.
For every action, there is an equal and opposite reaction.
a)

Law of Inertia

b)

Law of Acceleration

c)

Law of Action - Reaction

29.

An automobile you are riding in suddenly stops, but you continue to go forward.

a)

Law of Inertia

b)

Law of Acceleration

c)

Law of Action - reaction

30.

You push against a wall and the wall is pushing back on you.

a)

Law of Inertia

b)

Law of Acceleration

c)

Law of Action Reaction

31.

As the fuel in a rocket ignites, the force of gas expansion and explosion pushes out the back of the rocket and pushes the rocket forward.

a)

Law of Inertia

b)

Law of Acceleration

c)

Law of Action - Reaction

32.

What is Newtons 1st law of motion?

a)

Force = mass x accelerationForce\ =\ mass\ x\ acceleration   

b)

An object at rest stays at rest unless acted on an unbalanced force.

c)

For every action there is an equal and opposite reaction

d)

Weight=mass x gravityWeight=mass\ x\ gravity  

33.
What is Newtons 2nd law of motion?
a)

Force =mass x accelerationForce\ =mass\ x\ acceleration  

b)
An object at rest stays at rest unless acted on an unbalanced force.
c)

For every action there is a equal and opposite reaction

d)

Speed = displacementtimeSpeed\ =\ \frac{displacement}{time}  

34.
What is Newtons 3rd law of motion?
a)

Force = mass x accelerationForce\ =\ mass\ x\ acceleration  

b)
An object at rest stays at rest unless acted on an unbalanced force.
c)
For every action there is a equal and opposite  reaction.
d)
Law of gravity 
35.

Which force causes an object to speed up or slow down (accelerate or decelerate)?

a)
unbalanced force
b)
balanced force
36.
A car speeding up, a dog slowing down and person turning around the block are examples of..
a)
Balanced Forces
b)
Unbalanced Forces
37.

What is Newton's First Law known as? The Law of ________

a)
Friction
b)
Mass
c)
Inertia
d)
Gravity
38.

Newton's Second Law is also known as the Law of _______

a)

Inertia

b)

Acceleration

c)

Action - Reaction

d)

Gravitation

39.

Newton's Third Law is also known as the Law of _______

a)

Inertia

b)

Acceleration

c)

Action - Reaction

d)

Gravitation

40.

Which of the following is the correct position - time graph for an object moving with a constant velocity?

a)
b)
c)
d)
41.
What is Newtons 2nd law of motion?
a)

Force =mass x accelerationForce\ =mass\ x\ acceleration  

b)
An object at rest stays at rest unless acted on an unbalanced force.
c)

For every action there is a equal and opposite reaction

d)

Speed = displacementtimeSpeed\ =\ \frac{displacement}{time}  

42.
What is Newtons 3rd law of motion?
a)

Force = mass x accelerationForce\ =\ mass\ x\ acceleration  

b)
An object at rest stays at rest unless acted on an unbalanced force.
c)
For every action there is a equal and opposite  reaction.
d)
Law of gravity 
43.

Which force causes an object to speed up or slow down (accelerate or decelerate)?

a)
unbalanced force
b)
balanced force
44.
A car speeding up, a dog slowing down and person turning around the block are examples of..
a)
Balanced Forces
b)
Unbalanced Forces
45.

Which of the following is the correct position - time graph for an object moving with a constant velocity?

a)
b)
c)
d)
46.

An object resting on a surface experiences +980 N of Normal force. What is the mass of the object?


W=mg

a)

-98 kg

b)

9.8 kg

c)

100 kg

d)

-100 kg

47.
8 N to the left , and 4 N to the right. Find the net force. Is this balanced 
a)
12 N Right  No
b)
4 N Left  No
c)
12 N Right  Yes
d)
4 N Left  Yes
48.
Calculate the net force acting upon the object.
a)
10 N north
b)
10 N south
c)
14.1 N east
d)
0 N
49.
Calculate the net force acting upon the object.
a)
10 N east
b)
0 N
c)
14.1 N east
d)
20 N north
50.

An apple weighs 1 N. The net force on the apple when it is in free fall is

a)

0 N.

b)

0.1 N.

c)

1 N.

d)

10 N

51.

Calculate the net force acting upon the object.

a)

10N, north

b)

20N, south

c)

10N, south

d)

22.4N, north

52.

What is the net force of the block?

a)

8N, right

b)

2N, right

c)

8N, left

d)

2N, left

53.
What is the net force?
a)
5000 N right
b)
4000 N right
c)
40 N left
d)
4000 N left
54.
The Free body diagram shown represents
a)
An upward force of 7N, a force to the right of 6 N and a force to the left of 5 N
b)
An upward force of 6N, a force to the right of 6 N and a force to the left of 6 N
c)
An upward force of 7N, a force to the right of 6 N and a force to the left of 3 N
d)
An upward force of 8N, a force to the right of 6 N and a force to the left of 5 N
55.
The free body diagram displayed shows
a)
A rightward gravitational force of100N
b)
A downward gravitational force of 100N
c)
A leftward gravitational force of 100N
d)
An upward gravitational force of 400N
56.

Determine the net force and direction of motion:

a)

16 N Right

b)

16 N Left

c)

0 N not moving

d)

0 N left

57.

Determine the net force and direction:

a)

11 N Left

b)

11 N Right

c)

0 N Left

d)

5 N Left

58.

Determine the net force and direction

a)

20 N up

b)

0 N no movement

c)

20 N down

d)

40 N down

59.

Determine the net force and direction

a)

15 N up

b)

15 N down

c)

0 N no movement

d)

30 N up

60.

Determine the missing force at C:

a)

700 N

b)

200 N

c)

0 N

d)

1100 N

61.

Determine the force at G:

a)

30 N

b)

20 N

c)

50 N

d)

0 N

62.

What is the force at D and E?

a)

D: 300 N, E: 20 N

b)

E: 300 N, D: 80 N

c)

E: 300 N, D: 20 N

d)

E: 300 N, D: 60 N

63.
a)

A: 200 N; B: 50 N

b)

A: 250 N; B: 250 N

c)

A: 500 N; B: 200 N

d)

A: 50 N; B: 200 N

64.

What can you tell about the forces on F and H?

a)

They must be unbalanced.

b)

They are negative.

c)

They must be the same.

d)

They are equal to the net force.

65.
Fw stands for
a)
Weight force
b)
Working force
c)
Waiting force
d)
Whatever force
66.
FT stands for
a)
Thermal force
b)
Tension force
c)
Total force
d)
Timing force
67.
Any object resting against a surface feels
a)
tension force
b)
buoyant force
c)
normal force
d)
frictional force
68.
Fapp is
a)
felt by a flying bird
b)
felt by a leaf floating down a river
c)
felt by a dog on a leash
d)
felt by you sitting here taking Quizizz
69.
As you sit and take this Quizizz, which force(s) are at work?
a)
Fw and Ft
b)
Fg and Ff
c)
Fw and Fairdrag
d)
Fg and FN
70.
Which set matches the following diagram?
a)
Fw and FT
b)
Fw and Ff
c)
Fw and Fairdrag
d)
FB and FN
71.
Fairdrag can best be described as
a)
dragging a bag across the ground outside
b)
feeling the wind hit you in the face as you ride your bike downhill
c)
feeling the wind hit you in the face as you sit outside on a step
d)
feeling the air from a fan as you sit in a room
72.
Phones used to look like this... What forces are at work?
a)
Fw and FT
b)
Fw and Ff
c)
Fw and Fairdrag
d)
Fg and FN
73.
Identify the forces at work
a)
Fw and FT
b)
Fw and FB
c)
Fw and Fairdrag
d)
Fg and FN
74.
What is the purpose of the parachutes in the image?
a)
to help the cars land
b)
to help the cars stay on the ground
c)
to slow the cars down
d)
to help people see the cars from far away
75.
The car and the cart are experiencing the same forces.
a)
True
b)
False
76.
Is there a normal force in this image?
a)
Yes
b)
No
c)
It's too cloudy to tell
77.
Which is applying a greater force?
a)
the top teeth
b)
the bottom teeth
c)
force from both is the same
d)
depends on what they are eating
78.
The parachutes in the images are being used for the same purpose in the image.
a)
True
b)
False
79.
In the image on the left the parachute is being used for _______, and in the image on the right the parachutes are being used for _________.
a)
Fg and FT
b)
FT and FT
c)
Fairdrag and FT
d)
Fairdrag and Fairdrag
80.
Who had the greatest force?
a)
6 rings
b)
Light saber
c)
Yes
81.
Name the missing force....
a)
weight force
b)
normal force
c)
frictional force
d)
tension force
82.
Name the missing force...
a)
applied force
b)
weight force
c)
lift
d)
normal force
83.
Name the missing force...
a)
frictional force
b)
weight force
c)
thrust
d)
buoyant force
84.
Name the missing force...
a)
normal force
b)
applied force
c)
frictional force
d)
tension force
85.
Name the missing force...
a)
applied force
b)
weight force
c)
tension force
d)
drag
86.
Name the missing force...
a)
weight force
b)
normal force
c)
applied force
d)
frictional force
87.

Whenever an object is moving, there is always this force opposing the motion:

a)

inertia

b)

momentum

c)

friction

d)

applied force

88.

If an object is moving to the right, this force is pushing or pulling to the left:

a)

friction

b)

applied

c)

normal

d)

tension

89.

The force that keeps objects on top of surfaces instead of letting them sink into the surface is known as:

a)

normal

b)

abnormal

c)

static

d)

inertia

90.

What is the NET FORCE of this diagram?

a)

17 N, right

b)

17 N, left

c)

23 N, right

d)

12 N, up

91.

This object would be moving (pick all that are correct):

a)

up

b)

down

c)

left

d)

right

92.

The down-arrow in this diagram is most-likely:

a)

gravity

b)

normal

c)

a push or pull

d)

friction

93.

Which of the following is true about this free-body diagram?

a)

the forces are are balanced

b)

the object is free-falling

c)

the object is moving upward

d)

the forces are unbalanced

94.

What forces are on a leopard laying on a log?

a)

Fg & Fapp

b)

Fb & Fg

c)

Fg & FN

d)

Ff & FN

95.
Which one is balanced?
a)
top
b)
bottom
c)
both
96.
Is it BALANCED? 
a)
Yes
b)
No
97.
What is the net force?
a)
17 N Right
b)
3 N Right
c)
3 N Left
d)
17 N Left
98.

The Coffee cup in the picture is resting on a table. What force(s) are missing from the free body diagram?

a)

No forces are missing

b)

The normal force from the table pushing the cup up.

c)

The normal force form the table pushing the cup down.

d)

The friction force from the table pushing the cup left and right.

99.

The coffee cup in the picture is at rest on the table. What is true about the Normal force?

a)

The normal force is exactly 15

b)

The normal force is less than 15

c)

The normal force is more than 15

d)

The normal force is -10

100.

The hockey puck is moving at a constant velocity across the ice. What forces does the puck experience at this moment?

a)

None

b)

Gravity

c)

Gravity and Normal

d)

Gravity, Normal, and Friction

e)

Gravity, Normal, Friction, and Applied

101.

The hockey puck is moving at a velocity of 20 m/s. If the forces on the puck are in equilibrium, what will the puck's velocity be 2 seconds later?

a)

0 m/s

b)

1 m/s

c)

2 m/s

d)

10 m/s

e)

20 m/s

102.

Which equation would accurately describe the forces on this cup of coffee?

a)

Fn − Fg = 0F_n\ -\ F_g\ =\ 0

b)

Fn×Fg = 0F_n\times F_g\ =\ 0

c)

Fn−10FgF_n-10F_g

d)

Fn−Fg = −10F_n-F_g\ =\ -10

103.

The forces on this chandelier are...

a)

Gravity

b)

Gravity and Normal

c)

Gravity and Tension

d)

Gravity, Tension, Friction, and Applied

104.

A chandelier is hanging from the ceiling. If the force of gravity on the chandelier is 120 N, the force of tension must be ...

a)

0 N

b)

12 N

c)

60 N

d)

120 N

105.

A squirrel sits on the ground and eats a donut. We know the forces on him must be balanced because...

a)

Forces are always balanced

b)

the squirrel is not accelerating

c)

squirrels are projectiles

d)

he's eating a donut

106.

A squirrel sits on the ground and eats a donut. If the ground pushes up on the squirrel with a force of 11 N, The squirrel and donut together weigh ...

a)

less than 11 N

b)

Exactly 11 N

c)

More than 11 N

107.

The car in the picture is moving at a constant velocity. What forces does the car experience?

a)

Gravity

b)

Gravity and Normal

c)

Gravity, Normal, and Friction

d)

Gravity, Normal, Friction, and Applied

108.

The Car in the picture is moving to the right at a constant velocity. Any friction present would be pushing the car to the ...

a)

Up

b)

Right

c)

Down

d)

Left

109.

Two books rest on the same table. Book A weighs 20 N. Book B has a mass of 3 kg. Which one has a greater force of gravity on it?

a)

The same

b)

Book A

c)

Book B

110.

A man pushes a box across the floor at a constant velocity. There is a force on the box pulling it toward the center of the earth. This is called the

a)

force of gravity

b)

normal force

c)

friction force

d)

applied force

111.

A man pushes a box across the floor at a constant velocity. There is a force on the box from the floor pushing the box up. This is the ...

a)

force of gravity

b)

normal force

c)

force of friction

d)

applied force

112.

A man pushes a box across the floor at a constant velocity. There is a force on the box resisting its motion. This is the ...

a)

force of gravity

b)

normal force

c)

force of friction

d)

applied force

113.

A man pushes a box across the floor at a constant velocity. There is a force from the man pushing on the box. This is the ...

a)

force of gravity

b)

normal force

c)

force of friction

d)

applied force

114.

A man pushes a box across the floor at a constant velocity. There is a force on the box pulling it toward the center of the earth. This is called the

a)

force of gravity

b)

normal force

c)

force of friction

d)

applied force

115.

A man pushes a box across the floor at a constant velocity. Which formula describes the horizontal forces on the box?

a)

FP − Ff = 0F_P\ -\ F_f\ =\ 0

b)

Fp+Fg − Ff = 0F_p+F_g\ -\ F_f\ =\ 0

c)

FP −10Fg = 0F_P\ -10F_g\ =\ 0

d)

Fp ×Ff=0F_{p\ }\times F_f=0

116.

A man pushes a box across the floor at a constant velocity. Which formula describes the vertical forces on the box?

a)

FP − Fg = 0F_P\ -\ F_g\ =\ 0

b)

Fp+Fg − Ff = 0F_p+F_g\ -\ F_f\ =\ 0

c)

Fn −10Fg = 0F_n\ -10F_g\ =\ 0

d)

Fn−mg = 0F_n-mg\ =\ 0

117.

A man pushes a box across the floor at a constant velocity. If another box were put on top of this box, what would happen to the force of friction?

a)

It would increase

b)

It would decrease

c)

It would remain unchanged

118.
What is the net force?
a)
17 N Right
b)
3 N Right
c)
3 N Left
d)
17 N Left
119.

What is the NET FORCE of this diagram?

a)

17 N, right

b)

17 N, left

c)

23 N, right

d)

12 N, up

120.

An object resting on a surface experiences +980 N of Normal force. What is the mass of the object?


W=mg

a)

-98 kg

b)

9.8 kg

c)

100 kg

d)

-100 kg

121.
8 N to the left , and 4 N to the right. Find the net force. Is this balanced 
a)
12 N Right  No
b)
4 N Left  No
c)
12 N Right  Yes
d)
4 N Left  Yes
122.
Calculate the net force acting upon the object.
a)
10 N north
b)
10 N south
c)
14.1 N east
d)
0 N
123.
Calculate the net force acting upon the object.
a)
10 N east
b)
0 N
c)
14.1 N east
d)
20 N north
124.

An apple weighs 1 N. The net force on the apple when it is in free fall is

a)

0 N.

b)

0.1 N.

c)

1 N.

d)

10 N

125.

Calculate the net force acting upon the object.

a)

10N, north

b)

20N, south

c)

10N, south

d)

22.4N, north

126.

What is the net force of the block?

a)

8N, right

b)

2N, right

c)

8N, left

d)

2N, left

127.
What is the net force?
a)
5000 N right
b)
4000 N right
c)
40 N left
d)
4000 N left
128.
The Free body diagram shown represents
a)
An upward force of 7N, a force to the right of 6 N and a force to the left of 5 N
b)
An upward force of 6N, a force to the right of 6 N and a force to the left of 6 N
c)
An upward force of 7N, a force to the right of 6 N and a force to the left of 3 N
d)
An upward force of 8N, a force to the right of 6 N and a force to the left of 5 N
129.
The free body diagram displayed shows
a)
A rightward gravitational force of100N
b)
A downward gravitational force of 100N
c)
A leftward gravitational force of 100N
d)
An upward gravitational force of 400N
130.

Determine the net force and direction of motion:

a)

16 N Right

b)

16 N Left

c)

0 N not moving

d)

0 N left

131.

Determine the net force and direction:

a)

11 N Left

b)

11 N Right

c)

0 N Left

d)

5 N Left

132.

Determine the net force and direction

a)

20 N up

b)

0 N no movement

c)

20 N down

d)

40 N down

133.

Determine the net force and direction

a)

15 N up

b)

15 N down

c)

0 N no movement

d)

30 N up

134.

Determine the missing force at C:

a)

700 N

b)

200 N

c)

0 N

d)

1100 N

135.

Determine the force at G:

a)

30 N

b)

20 N

c)

50 N

d)

0 N

136.

What is the force at D and E?

a)

D: 300 N, E: 20 N

b)

E: 300 N, D: 80 N

c)

E: 300 N, D: 20 N

d)

E: 300 N, D: 60 N

137.
a)

A: 200 N; B: 50 N

b)

A: 250 N; B: 250 N

c)

A: 500 N; B: 200 N

d)

A: 50 N; B: 200 N

138.

What can you tell about the forces on F and H?

a)

They must be unbalanced.

b)

They are negative.

c)

They must be the same.

d)

They are equal to the net force.

139.

Whenever an object is moving, there is always this force opposing the motion:

a)

inertia

b)

momentum

c)

friction

d)

applied force

140.

This object would be moving (pick all that are correct):

a)

up

b)

down

c)

left

d)

right

141.

The down-arrow in this diagram is most-likely:

a)

gravity

b)

normal

c)

a push or pull

d)

friction

142.

Which diagram best shows person pushing a couch (accelerating) across the floor?

a)
b)
c)
d)
143.
Name the missing force...
a)
applied force
b)
weight force
c)
lift
d)
normal force
144.
A box is moving to the left up a ramp. Which way is the force of friction pointing?
a)
down the ramp to the right
b)
up the ramp to the left
c)
there is no friction
d)
straight up
145.

As the angle of the incline increases, what happens to the normal force?

a)

The normal force increases

b)

The normal force decreases

c)

The normal force is not affected by the incline

d)

The normal force is only dependent on the force due to gravity

146.
Which of the following is true about the system shown?
a)
The system is not accelerating.
b)
The tension between m2 and m1 is less than the tension between m2 and m3
c)
The acceleration of the system only depends on m3
d)
None of the other answers are true
147.

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

a)

20 N

b)

5 N

c)

8 N

d)

0.2 N

148.

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

a)

The accelerations of the blocks will vary according to their mass

b)

The net force acting on each block is the same

c)

The blocks will experience the same acceleration

d)

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

149.

Which of the following is not true about the system?

a)

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

b)

T3 is equal in magnitude to Fg

c)

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

d)

The system is in equilibrium.

150.

If there is no friction, then the acceleration would be equal to

a)

mg

b)

sin(θ)mg

c)

g

d)

sin(θ)g

151.

A 80 kg skydiver is free falling at a constant velocity of 19 m/s. What is the net (total) force acting on her?

a)

1,520 N

b)

0 N

c)

800 N

d)

Not enough information to answer

152.
Assuming both objects are at rest, which object is more massive? M1 or M2?
a)
M1 is more massive
b)
M2 is more massive
c)
both M1 and M2 are the same mass
153.

A man standing on a scale in an elevator notices that the scale reads 40 newtons greater than his normal weight. Which type of movement of the elevator could cause this greater-than-normal reading?

a)

accelerating upward

b)

accelerating downward

c)

moving upward at a constant speed

d)

moving downward at a constant speed

154.

A man weighing 800 Newtons is standing in an elevator. If the elevator rises with an acceleration of 0.5 meters per second2, the force exerted by the elevator on the man will be

a)

400 N

b)

800 N

c)

1200 N

d)

1000 N

155.
A magician pulls a tablecloth out from under dishes and glasses on a table without disturbing them.
a)
Newton's 1st Law
b)
Newton's 2nd Law
c)
Newton's 3rd Law
156.

An apple weighs 1 N. The net force on the apple when it is in free fall is

a)

0 N.

b)

0.1 N.

c)

1 N.

d)

10 N

157.
"If we apply a ___________ to an object, its __________________ will change and it will  ______________."
a)
force, accelerate, gravity
b)
accelerate, inertia, gravity
c)
force, velocity, accelerate
d)
velocity, gravity, inertia
158.

A 70 kg acrobat hangs from a bar, motionless, that is attached to the ceiling by two ropes. Find the tension in each rope.

a)

70 N

b)

700 N

c)

350 kg

d)

350 N

159.

The hockey puck is moving at a constant velocity across the ice. What forces does the puck experience at this moment?

a)

None

b)

Gravity

c)

Gravity and Normal

d)

Gravity, Normal, and Friction

e)

Gravity, Normal, Friction, and Applied

160.
Name the missing force...
a)
tension force
b)
frictional force
c)
normal force
d)
spring force
161.

What is the NET FORCE of this diagram?

a)

17 N, right

b)

17 N, left

c)

23 N, right

d)

12 N, up

162.

Determine the net force and direction of motion:

a)

16 N Right

b)

16 N Left

c)

0 N not moving

d)

0 N left

163.
Name the missing force...
a)
applied force
b)
weight force
c)
lift
d)
normal force
164.
What is the net force in this picture?
a)
50 Newtons to the right
b)
950 Newtons to the right
c)
950 Newtons to the left
d)
50 Newtons to the left
165.

If two forces are opposite each other on a free body diagram you should...

a)

Multiply them together

b)

Divide them into each other

c)

Subtract them from each other

d)

Add them together

166.
Match description with free-body diagram.
a)
A book is at rest on a tabletop.
b)
A gymnast holding onto a bar, is suspended motionless in mid-air. The bar is supported by two ropes that attach to the ceiling. Diagram the forces acting on the combination of gymnast and bar.
c)
An egg is free-falling from a nest in a tree. Neglect air resistance.
d)
A flying squirrel is gliding (no wing flaps) from a tree to the ground at constant velocity. Consider air resistance.
167.
Is it BALANCED? 
a)
Yes
b)
No
168.
What is the net force?
a)
17 N Right
b)
3 N Right
c)
3 N Left
d)
17 N Left
169.

Which of the following is possible for an object with balanced forces acting on it? (Choose all that apply)

a)

at rest

b)

moving at constant speed

c)

changing direction

d)

slowing down

170.

Which of the following is possible for an object with unbalanced forces acting on it? (choose all that apply)

a)

Moving to the right with a constant speed of 3 m/s

b)

Moving to the left with rightward acceleration

c)

changing direction

d)

at rest

171.

Whenever an object is moving, there is always this force opposing the motion:

a)

inertia

b)

momentum

c)

friction

d)

applied force

172.

Which diagram best shows person pushing a couch (accelerating) across the floor?

a)
b)
c)
d)
173.

Which of these include only contact forces?

a)

Fapp Fg Fnorm

b)

Fapp Ftens Fnorm

c)

Fb Fapp Fg

d)

Fair Fnorm Fg

174.

The force that keeps objects on top of surfaces instead of letting them sink into the surface is known as:

a)

normal

b)

abnormal

c)

static

d)

inertia

175.

The hockey puck is moving at a constant velocity across the ice. What forces does the puck experience at this moment?

a)

None

b)

Gravity

c)

Gravity and Normal

d)

Gravity, Normal, and Friction

e)

Gravity, Normal, Friction, and Applied

176.

Which is the best description of tension force in a system with balanced forces?

a)

The force that opposes motion

b)

The force that opposes weight

c)

The force in a string that is equal to weight

d)

The force that opposes friction

177.
Rougher surfaces have ...
a)
greater friction
b)
less friction
c)
the same level of friction
178.
What is a normal force?
a)
It always opposes gravity.
The same as a frictional force.
b)
It is equivalent to the weight of an object.
c)
It acts perpendicular to a contact surface.
d)
It is equivalent to inertia.
179.

Ted is trying to move a fridge through his house, he gets stuck on a carpet and even though he is pushing the fridge, it is not moving. What force is acting against him?

a)

applied

b)

static friction

c)

kinetic friction

d)

normal

180.

A downward-moving skydiver who has just opened the parachute is slowing down.

a)
b)
c)
d)
181.
Name the missing force...
a)
frictional force
b)
weight force
c)
thrust
d)
buoyant force
182.
Name the missing force...
a)
normal force
b)
applied force
c)
frictional force
d)
tension force
183.
A type of friction that occurs when air pushes against a moving object causing it to decelerate.
a)
surface area
b)
air resistance
c)
velocity
d)
gravity 
184.

What does the F stand for on a free-body diagram?

a)

Free

b)

Fan

c)

Net

d)

Force

185.

Which of the following is true about this free-body diagram?

a)

the forces are are balanced

b)

the object is free-falling

c)

the object is moving upward

d)

the forces are unbalanced

186.
Name the missing force...
a)
weight force
b)
normal force
c)
applied force
d)
frictional force
187.

A hockey puck glides to the right across the ice at a constant speed.

a)
b)
c)
d)
188.

Which freebody diagram best represents a bookbag resting on the classroom floor?

a)
b)
c)
d)
189.

The down-arrow in this diagram is most-likely:

a)

gravity

b)

normal

c)

a push or pull

d)

friction

190.

If this object were moving right, the left-arrow in this diagram is most-likely:

a)

gravity

b)

normal

c)

a push or pull

d)

friction

191.

Whenever an object is moving, there is always this force opposing the motion:

a)

inertia

b)

momentum

c)

friction

d)

applied force

192.
Name the missing force...
a)
frictional force
b)
weight force
c)
thrust
d)
buoyant force
193.

A man pushes a box across the floor at a constant velocity. There is a force on the box pulling it toward the center of the earth. This is called the

a)

force of gravity

b)

normal force

c)

friction force

d)

applied force

194.
Name the missing force....
a)
weight force
b)
normal force
c)
frictional force
d)
tension force
195.
Name the missing force...
a)
applied force
b)
weight force
c)
lift
d)
normal force
196.
Name the missing force...
a)
tension force
b)
frictional force
c)
normal force
d)
spring force
197.
Name the missing force...
a)
frictional force
b)
weight force
c)
thrust
d)
buoyant force
198.
Name the missing force...
a)
normal force
b)
applied force
c)
frictional force
d)
tension force
199.

The force that keeps objects on top of surfaces instead of letting them sink into the surface is known as:

a)

normal

b)

abnormal

c)

static

d)

inertia

200.

The force exerted by ropes and chains is called

a)

tension

b)

normal

c)

elastic

d)

mechanical

201.

The Coffee cup in the picture is resting on a table. What force(s) are missing from the free body diagram?

a)

No forces are missing

b)

The normal force from the table pushing the cup up.

c)

The normal force form the table pushing the cup down.

d)

The friction force from the table pushing the cup left and right.

202.

The hockey puck is moving at a constant velocity across the ice. What forces does the puck experience at this moment?

a)

None

b)

Gravity

c)

Gravity and Normal

d)

Gravity, Normal, and Friction

e)

Gravity, Normal, Friction, and Applied

203.

The car in the picture is moving at a constant velocity. What forces does the car experience?

a)

Gravity

b)

Gravity and Normal

c)

Gravity, Normal, and Friction

d)

Gravity, Normal, Friction, and Applied

204.
Match description with free-body diagram.
a)
A book is at rest on a tabletop.
b)
A gymnast holding onto a bar, is suspended motionless in mid-air. The bar is supported by two ropes that attach to the ceiling. Diagram the forces acting on the combination of gymnast and bar.
c)
An egg is free-falling from a nest in a tree. Neglect air resistance.
d)
A flying squirrel is gliding (no wing flaps) from a tree to the ground at constant velocity. Consider air resistance.
205.

What force opposes gravity when an object is on a surface?

a)

Applied Force

b)

Normal Force

c)

Frictional Force

d)

Air Resistance

206.

How many forces are on a leopard laying stationary on a log?

a)

1

b)

2

c)

3

d)

4