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Quiz #4 - Newton's Laws

Total questions: 168

Worksheet time: 10hrs 48mins

Name
Class
Date
1.
What is the formula for force?
a)
F=M/A
b)
F=A/M
c)
F=M*A
d)
F=M*F
2.
If a force of 26 N is exerted on two balls, one with a mass of 0.52 kg and the other with a mass of 0.78 kg, which ball will have the greater acceleration?  (F=ma)
a)
The one with a mass of .78 kg will have the greatest acceleration.
b)
The one with a mass of .52 kg will have the greatest acceleration.
c)
They will both accelerate at the same rate.
3.
Unit of mass
a)
m/s 2
b)
m/s
c)
newtons
d)
kg
4.
If net force acting on object is 0, then the force is considered to be..
a)
Balanced
b)
Unbalanced
c)
Equal in Direction
d)
Distance/Time
5.
A cat sitting on couch, a pencil on desk and a car at rest are all example of..
a)
Balanced Force
b)
Unbalanced Force
6.
A car speeding up, a dog slowing down and person turning around the block are examples of..
a)
Balanced Forces
b)
Unbalanced Forces
7.
Newton's third law states that any action will have a(n) _______ and ______ reaction
a)
Equal and similar
b)
Equal and opposite
c)
Equal and different
d)
Greater and opposite
8.
This equation goes with which law?
a)
Newton's first law of motion
b)
Newton's second law of motion
c)
Newton's third law of motion
d)
None of these
9.
Which of Newton's laws is illustrated when a magician pulls a tablecloth out from under the dishes without disturbing them?
a)
first
b)
second
c)
third 
d)
fourth
10.
A person is pushed forward into their seat belt when a car stops.  Which law is this?
a)
1st
b)
 2nd
c)
2 and 3
d)
3rd 
11.
When a cannon fires a cannonball we observe Newton's third law. Which force is the reaction force?
a)
The cannon moving forward
b)
The cannonball moving forward
c)
The cannon moving backward
d)
The cannonball moving backward
12.
Which of Newton's Laws is illustrated with a large mass and a small mass accelerating?
a)
1st Law, the Law of Inertia.
b)
2nd Law, the Law of Acceleration
c)
3rd Law, the Law of Action Reaction
d)
The Law of Conservation of Mass
13.
Which of Newton's laws are illustrated with a rocket launch?
a)
1st Law, the Law of Inertia. 
b)
2nd Law, the Law of Acceleration.
c)
3rd Law, the Law of Action Reaction
d)
The Law of Conservation of Mass
14.
Which of Newton's Laws is illustrated with a large mass and a small mass accelerating?
a)
1st Law, the Law of Inertia.
b)
2nd Law, the Law of Acceleration
c)
3rd Law, the Law of Action Reaction
d)
The Law of Conservation of Mass
15.

Which arrow shows the direction of the friction force?

a)

A

b)

B

c)

C

d)

D

16.

What is the standard unit that force is measured in?

a)

Newtons

b)

pounds

c)

grams

d)

meters

17.

Which law is this picture illustrating?

a)

Law 1

b)

Law 2

c)

Law 3

18.

A rocket pushes burning gases DOWN which causes the rocket to launch UP. Which law is this?

a)

Law 1

b)

Law 2

c)

Law 3

19.

A sports car speeds up much faster than a dump truck when a traffic light turns from red to green. Which law is this?

a)

Law 1

b)

Law 2

c)

Law 3

20.

An object in motion stays in motion and an object at rest stays at rest UNLESS

a)

acted on by a balanced force.

b)

acted on by an unbalanced force.

21.
"An object at rest tends to remain at rest unless acted upon by an outside force."
Which of Newton's laws of motion is this?
a)
1st
b)
2nd
c)
3rd
d)
4th
22.
What is another name for Newton's first law of motion?
a)
Law of Inertia
b)
Law of Velocity
c)
Law of Power
d)
Law of Acceleration
23.
The baseball continues traveling upward until gravity forces it back to Earth. Which of Newton's Laws of Motion is illustrated in this example?
a)
1st
b)
2nd
c)
3rd
d)
4th
24.
The diagram shows a ball being accelerated to the right by a force of 25N. After colliding with the wall, the ball bounces off. Approximately how much force must the wall have applied to the ball during the collision? (Hint: No math involved. This is a logic question)
a)
25N
b)
250N
c)
2.5N
d)
0.4N
25.
Which examples demonstrates the concept of Inertia?
a)
A coin falls straight down into a glass when the paper holding it in place is quickly removed.
b)
A ball that is thrown at a brick wall bounces back toward the thrower.
26.
Which examples demonstrates the concept of Inertia?
a)
A passenger's body abruptly moves forward when a car stops suddenly.
b)
A swimmer's body is propelled forward while they are kicking in the pool.
27.
Which situation shows the addition of an external force on an object?
a)
A waiter slides tables together for a large dinner party.
b)
A family sits on a picnic blanket under a tree.
28.
Which situation shows the addition of an external force on an object?
a)
A child pushes his friend into a swimming pool.
b)
A ball rests motionless on the floor.
29.
Which force primarily acts on a natural or artificial satellite to keep it in orbit around a planet?
a)
gravity
b)
nuclear force
c)
centripetal force
d)
magnetism
30.
The inertia of an object is its tendency to ___.
a)
not move (if not in motion), or remain moving (if in motion)
b)
change its momentum
c)
stay moving
d)
not move
31.
Which of the following motion diagrams depicts a free falling object?
a)
a
b)
b
c)
c
d)
d
32.
Suppose you are at an ice-skating rink. You push a flat smooth object forward on the ice with your hand and let go of it. If the object could slide without friction on the ice, how would it move?
a)
It would move straight ahead at a constant speed.
b)
It would curve to the right at a decreasing speed.
c)
It would curve to the left a constant speed.
d)
It would move straight ahead at a decreasing speed.
33.
What is the name of the effect of the gravitational force that Earth exerts on an object?
a)
weight
b)
mass
c)
velocity
d)
acceleration
34.
A teacher's car has run out of gas and he is trying to push it to the side of the ride. The car has a mass of 1,200 kg and the teacher pushes with an acceleration of 0.07 m/s2. Which of Newton's Laws would he use to calculate the force he used to push the car?
a)
Second Law
b)
First Law
c)
Third Law
d)
Fourth Law
35.
Which of Newton's laws of motion explains why people should wear a seat belt in a moving vehicle?
a)
First law of motion
b)
Second law of motion
c)
Third law of motion
d)
Fourth law of motion
36.
When a cannonball is shot into the air through an explosion, the cannon shooting the cannonball is pushed backwards after the explosion. This is an example of Newton's ___.
a)
third law of motion
b)
second law of motion
c)
first law of motion
d)
fourth law of motion
37.
A skateboarder is moving at a speed of 3 m/s2. While traveling, the skate board hits a large rock and comes to a complete stop. The skate boarder, however, continues to travel at the speed of 3 m/s2 and is thrown off the stopped skate board. This is an example of Newton's __.
a)
first law
b)
second law
c)
third law
d)
fourth law
38.
Which of the following is correct about mass and weight?
a)
Weight takes into account Earth's gravitational pull.
b)
Mass takes into account Earth's gravitational pull.
c)
Mass is always greater than weight on Earth.
d)
Weight is always less than mass on Earth.
39.
When do the laws of motion apply to objects?
a)
all the time
b)
when they are accelerating
c)
when they are at rest
d)
when they change direction
40.
A rocket's upward motion that is caused by the downward force of burning fuel is an example of which of Newton's Laws of Motion?
a)
3rd
b)
1st
c)
2nd
d)
4th
41.
The acceleration of the sled depends on the force provided by the dogs and the mass of the sled. This is an example of which of Newton's Laws of Motion?
a)
2nd
b)
1st
c)
3rd
d)
4th
42.
To travel on his skateboard, Cole uses which of Newton's Law of Motion?
a)
3rd
b)
1st
c)
2nd
d)
4th
43.
In order to move the cart, the horse must apply a force to the mass of the box. This demonstrates Newton's ___.
a)
2nd Law of Motion
b)
1st Law of Motion
c)
3rd Law of Motion
d)
4th Law of Motion
44.
What is the mass of a bowling ball that has an acceleration rate of 3.9 m/s2 when a 25N force is applied?
a)
6.4 kg
b)
61 kg
c)
.72 kg
d)
9.8 kg
45.
Marc is pushing a 10kg box across the floor, by using a force of 12N. What would happen if Marc used a force of 8N instead?
a)
The acceleration rate would decrease.
b)
The acceleration rate would stay the same.
c)
The mass of the box would decrease.
d)
The acceleration rate would increase.
46.
An ice skater has a mass of 60kg and is accelerating at a speed of 12.5 m/s2. What amount of force is being applied to the skater?
a)
750.0 N
b)
4.8 N
c)
20.8 N
d)
960.0 N
47.
A force of 125N is acting upon a car that is accelerating at 36 m/s2. What is the mass of the car?
a)
3.5 kg
b)
4,500 kg
c)
288 kg
d)
3,125 kg
48.
If it takes a force of 2,000N to move a crate at a rate of 3.4 m/s2, what is the mass of the object?
a)
588.2 kg
b)
6,800 kg
c)
13,600 kg
d)
294.1 kg
49.
If a roller skater is accelerating at a speed of 3.7 m/s2 with a. force of 296 N acting upon her, what is the skater's mass?
a)
80 kg
b)
30 kg
c)
8 kg
d)
3 kg
50.
A 9.3 kg box is accelerating at a speed of 0.85 m/s2 on a conveyor belt. What amount of force is necessary to stop the box from moving?
a)
7.9 N
b)
10.9 N
c)
91.0 N
d)
79.1 N
51.
What is a PUSH or PULL of an object?
a)
Motion
b)
Force
c)
Friction
d)
Gravity
52.
Balanced or unbalanced?
a)
balanced
b)
unbalanced
53.
How will this object move? 
a)
It won't move. 
b)
It will move to the right. 
c)
It will move to the left. 
d)
It will move up. 
54.
How will this object move? 
a)
It won't move. 
b)
It will move to the right. 
c)
It will move to the left. 
d)
It will move in both directions. 
55.

Balanced or unbalanced?

(a)  

56.

What are the balanced forces?

a)

forces that are not equal in size and are opposite in direction

b)

forces that are equal in size and opposite in direction.

57.

What are the unbalanced forces?

a)

forces that are equal in size and opposite in direction.

b)

forces that are not equal in size and are opposite in direction

58.
If an object is not moving the forces acting upon it are _____________
a)
unbalanced
b)
weak
c)
balanced
d)
Hulk Smash!
59.
If these teams are pulling with the same amount of force what will happen?
a)
The boy in blue will win.
b)
They will not move at all.
c)
The boy in red will win.
d)
Both will fall down.
60.
What will cause an object to move?
a)
Applied forces
b)
Balanced forces
c)
Unbalanced forces
61.
Are the forces acting on the rope balanced or unbalanced?
a)
Balanced
b)
Unbalanced
62.

a)

Balanced

b)

Unbalanced

63.

a)

Balanced

b)

Unbalanced

64.

a)

Balanced

b)

Unbalanced

65.

A force has both strength and _____.

a)

power

b)

direction

c)

color

d)

balance

66.

Why did Izzy fall when playing tug of war?

a)

he tripped

b)

unbalanced forces

c)

balanced forces

d)

he was pushed

67.

Two people pull in opposite directions, but neither move positions (see picture). Which of the following BEST describes the forces being applied in this situation?

a)

The forces are balanced, and the net force is positive.

b)

The forces are balanced, and the net force is zero.

c)

The forces are unbalanced, and the person on the left applies a greater force.

d)

The forces are unbalanced, and the person on the right applies a greater force.

68.

Which of the following examples does NOT represent an object with an unbalanced force?

a)

A rock falling down a hill

b)

A football being thrown into the air

c)

A bicycle sitting on a sidewalk

d)

A water balloon being launched

69.

Which blocks will move as a result of the forces shown in the diagram?

a)

Blocks A and C

b)

Blocks A, B, and C

c)

Blocks A and B

d)

Blocks B and C

70.

Mrs. Halleran is giving examples of balanced and unbalanced forces. Which of the following situations is an example of unbalanced forces acting upon an object?

a)

A hose being pulled from both sides with equal force.

b)

A truck moving at a constant speed of 45 miles per hour.

c)

A toy car accelerating as it rolls down a ramp.

d)

A backpack lying on the ground.

71.

Luis is observing a game of Tug-of War. The center of the rope will move when which of the following is true?

a)

The rope essentially has no mass of its own.

b)

A player is added to the team on the right.

c)

One team applies a greater force than the other team.

d)

There is no friction between the ground and the players.

72.

Which of the following will allow the rope to remain balanced?

a)

The net force is greater than zero.

b)

Constant velocity is applied to one side.

c)

A force causes a change in the motion or direction.

d)

The force exerted on the rope remains the same.

73.

Forces that are exerted on an object which are equal in size but opposite in direction

a)

Unbalanced force

b)

Balanced force

74.

Which of the following examples BEST represents an object with balanced forces acting upon it?

a)

An airplane taking off.

b)

A skateboard rolling down hill.

c)

A tennis ball thrown into the air.

d)

A dish sitting in a cabinet.

75.

The illustration shows the forces, in Newtons (N), acting on three different blocks. Which blocks WILL move?

a)

Blocks A, B, C

b)

Blocks A and C

c)

Blocks B and C

d)

Blocks A and B

76.
How will this object move? 
a)
It won't move. 
b)
It will move to the right. 
c)
It will move to the left. 
d)
It will move up. 
77.

Which of the following is an example of a balanced force acting upon an object?

a)

A rock falling down a hill

b)

A football being thrown into the air

c)

A rope being pulled from the left with a greater force

d)

A car moving constantly at 60 miles per hour

78.
What is the net force?
a)
40 N left
b)
0 N Balalnced
c)
400 N right
d)
40 N right
79.

Applied forces on an object are unequal in size but are the same or opposite in direction

a)

Unbalanced force

b)

Balanced force

80.

A card sliding across a table at a constant speed

a)

Unbalanced force

b)

Balanced force

81.

Which of the following is an example of an unbalanced force?

a)
b)
c)
d)
82.
The unit for force is a called a: 
a)
Galileo
b)
Newton
c)
Aristotle
83.
What is the net force?
a)
17 N Right
b)
3 N Right
c)
3 N Left
d)
17 N Left
84.

Newton’s law states that for every action, there is an ________ reaction.

a)

unequal and opposite

b)

equal and similar

c)

stronger and opposite

d)

equal and opposite

85.

When a small car pushes a big truck, the truck applies an equal and opposite force on the car.

a)

False

b)

True

86.

When a cannon fires a cannonball we observe Newton's third law. Which is the reaction force?

a)

The cannon moving forward

b)

The cannon moving backwards

c)

The cannonball moving backwards

d)

The cannonball moving forward

87.

Action-reaction pairs can cause a change in motion.

a)

True

b)

False

88.

When the person pushes the ground with their foot, the equal and opposite reaction force is

a)

the ground pushing back on their foot

b)

when they start to move forward

89.

Force always come in________

a)

waves

b)

triplets

c)

pairs

90.

The forces in a force pair are in _______ direction

a)

opposite

b)

same

91.
A person steps out of the boat and onto the dock.  As the person moves forward onto the dock, the boat moves backward.  Which statement best describes the backward motion of the boat as the person steps forward?
a)
For every action there is an equal and opposite reaction.
b)
Every mass exerts a force on every other mass.
c)
An object at rest tends to stay at rest.
d)
Friction opposes the motion of an object.
92.
Why is the net force 0 in the image?
a)
Because the elephants are the same size
b)
Because they are both pulling the same amount of force in opposite directions
c)
Because they are elephants
d)
Because they are pulling away from each other.
93.

What will happen if the Action is greater than the Reaction?

a)

The man will fall

b)

The boat will sink

c)

Nothing will happen

94.

What happens to the balloon if the air is released ?

a)

Balloon goes right

b)

Balloon goes up

c)

Balloon goes down

d)

Balloon goes left

95.

What is an example of Newton's 3rd law

a)

A rainbow in the sky

b)

A rocket taking off

c)

A kid going to bed

d)

A ball in the air

96.

If the person is pushing backwards with the paddle, why do they move forward?

a)

The person will actually move backwards, they need to paddle the other way

b)

The water pushes back with an equal and opposite force

c)

The person is pushing harder than the water

d)

The water pushes back with a greater force than the person

97.

If a person pushes down on a trampoline, why do they move back up into the air?

a)

The trampoline pushes back with a greater force than the person

b)

The trampoline pushes back with less force than the person

c)

The trampoline pushes back with an equal and opposite force as the person

98.

How is this an example of Newton's 3rd Law?

a)

Only his head is pushing on the ball

b)

Only the ball is pushing on his head

c)

Both the ball and the head are exerting equal force on each other

99.

A book rests on a table. The force of gravity pulls down on the book with a force of 20N. What prevents the book from falling down into the ground?

a)

The table and the book are pushing back with an acceleration of 9.8m/s2.

b)

The table pushes back up on the book with a force greater than 20N

c)

The inertia of the book is equal to the inertia of gravity

d)

The table pushes back up on the book with an equal and opposite force of 20N

100.
A bus hits a bug and the bug splatters on the windshield, which force is greater?
a)
The Bus
b)
The Bug
c)
They're the same
d)
Gravity acting on the bus
101.

Newton's 3rd law is also known as

a)

The Law of Acceleration

b)

The Law of Action - Reaction

c)

The Law of Gravity

d)

The Law of Inertia

102.
__________ is the sum of all forces acting on an object. It is capable of accelerating a mass. 
a)
velocity
b)
gravity
c)
net force
d)
distance
103.
Why is it harder for the boy in Image B to get down the hill?
a)
Motion
b)
Friction
c)
Work
d)
Displacement
104.
If there are two forces going in the same direction how would you find the net force?
a)
Subtract
b)
Add
c)
Neither
d)
Multiply
105.
What is the unit of measurement for force?
a)
AMP
b)
Seconds
c)
Newtons
d)
Miles
106.

Which box will accelerate MORE given the SAME applied force?

a)

top

b)

bottom

107.
A change in velocity over time is called ___________.
a)
speed
b)
force
c)
acceleration
d)
direction
108.

m/s2 is the unit for.....

a)

Mass

b)

Force

c)

Acceleration

d)

weight

109.

How do you find the net force of this image.

a)

Add up all the arrows

b)

Add a green arrow and the orange arrow.

c)

Subtract all the arrows.

d)

Add the green arrows and subtract the orange arrow.

110.

What is the net force on the object pictured?

a)

3 N

b)

5 N

c)

4 N

d)

8 N

111.

What is the net force and to what direction.

a)

210 N to the right

b)

280 N to the right

c)

110 N to the left

d)

180 N to the left

112.
Calculate the net force shown in the  diagram?
a)
41 N
b)
25 N
c)
16 N
d)
9 N
113.

Which SI unit is used to measure mass?

a)

s

b)

m

c)

kg

d)

Pa

114.
What is a measure of the change of velocity of a moving object?
a)
speed
b)
acceleration
c)
motion 
d)
velocity 
115.
True or False. Unbalanced forces will never have a net force of zero Newtons. 
a)
True
b)
False
116.
_____________ causes changes in the speed and/or direction of motion. 
a)
Speed
b)
Force
c)
Velocity
117.
The SI unit for force is 
a)
Watt (W)
b)
Power (P)
c)
Newton (N)
d)
Force (F)
118.
A 20 kg bike accelerates at 10 m/s2.  what was the force?
a)

25 Newtons

b)

20 Newtons

c)

200 Newtons

d)

10 Newtons

119.

Kelli is trying to move a 1200kg car at a rate of 4 m/sec2. What is the force needed to accelerate of the object?

a)

300N

b)

1,250N

c)

4800 N

d)

5kg

120.
If you increase the mass on an object, its acceleration
(a)  
Choose from the below words
decreases
stays the same
also increases
stops
121.

If you increase the force on an object, its acceleration (a)  

Choose from the below words
also increases
decreases
stays the same
stops
122.

Force is equal to

(a)   * ​ (b)  

Choose from the below words
mass
acceleration
weight
speed
123.

Which example best explains Newton's Second Law of Motion?

a)

When a glass slid across a table, it spilled water when it stopped suddenly.

b)

It takes less force to move a small car compared to a large truck.

c)

When you sit on a chair, your body exerts a downward force on the surface of the chair, while the chair exerts an equal and upward force on your body.

124.

Forces that are exerted on an object which are equal in size but opposite in direction

a)

Unbalanced force

b)

Balanced force

125.
Which law of motion states that an object in motion will stay in motion and an object at rest will stay at rest unless acted upon by an unbalanced force?
a)
Newton's 1st Law of Motion
b)
Newton's 2nd Law of Motion
c)
Newton's 3rd Law of Motion
126.
The combination of all forces acting on an object is called __________
a)
Parallelogram Rule
b)
Net Force
c)
Vector Quantity
d)
All the Jedi's using their abilities together
127.

A tendency to do nothing or to remain unchanged

a)

Mass

b)

Resistance

c)

Inertia

d)

Force

128.

A measure of how much matter is present in a substance

a)

Weight

b)

Mass

c)

Force

d)

Inertia

129.

Objects in motion tend to stay in motion

a)

Newtons 1st Law

b)

Newtons 2nd Law

c)

Newtons 3rd Law

d)

None

130.

A push or pull that can change the motion of an object

a)

Tug

b)

Force

c)

Direction

d)

Net Force

131.

How do we measure Force

a)

Newtons

b)

Grams

c)

M/S

d)

Mi/Hr

132.

what is the net force

a)

17N

b)

3N <-----

c)

3N------>

d)

10N ------->

133.
a)

This is an Unbalanced Force

b)

This is a Balanced Force

134.
a)

This is an Unbalanced Force

b)

This is a Balanced Force

135.

What is the net force

a)

5N ---->

b)

5N<--------

c)

0N

d)

10N

136.
What is Newton's First Law known as? The Law of
a)
Friction
b)
Mass
c)
Inertia
d)
Gravity
137.
What kind(s) of objects have inertia?
a)
all objects with mass
b)
only objects at rest
c)
only objects in motion
d)
only objects whose motion is being changed
138.
Which type of force(s) will cause a change in an object's motion?
a)
gravity
b)
zero net force
c)
balanced forces
d)
unbalanced forces
139.
If an object is stationary (not moving) the forces acting upon it are _____________
a)
unbalanced
b)
weak
c)
balanced
d)
Hulk Smash!
140.
Why does an 18-wheeler have more inertia than a bicycle?
a)
it has more mass
b)
it has more volume
c)
it is not as aerodynamic
141.
Objects at rest resist...
a)
Motion
b)
Rest
c)
Mass
d)
Gravity
142.
Without a force to stop or slow a coasting object, the object will coast forever in a ______ line. 
a)
blue
b)
red
c)
straight
d)
vertical 
143.
If I slowly roll a ball down the hallway, why does it eventually stop?
a)
Because of Newton's First Law
b)
Friction and Air Resistance
c)
Inertia
d)
It wouldn't stop, it would keep going until it hits a wwall.
144.
An automobile you are riding in suddenly stops, but you continue to go forward.
a)
Newton's
1st
Law of Motion
b)
Newton's
2nd
Law of Motion
c)
Newton's
3rd
Law of Motion
145.

What Newtons law does this picture represent

a)

Newtons 1st law

b)

Newtons 2nd law

c)

Newtons 3rdt law

d)

Newtons 4rth law

146.
If these boys are pulling with the same amount of force.  What will happen?
a)
The boy in blue will win.
b)
They will not move at all.
c)
The boy in red will win.
d)
Both will fall down.
147.
Which one is balanced?
a)
top
b)
bottom
c)
both
d)
neither
148.

What is a force?

a)

A touch

b)

Any push or pull

c)

Power or energy

d)

Gravity only

149.

What is inertia?

a)

Objects changing their motion on their own.

b)

Objects moving in a straight line.

c)

Objects staying still when they are acted on by a force.

d)

Objects not changing motion unless acted on by an unbalanced force.

150.

A car moves at a constant speed without changing direction. What HAS to be true about the forces on the car?

a)

A force is pushing the car in the direction it's moving.

b)

The forces on the car are not balanced.

c)

The forces on the car are balanced.

d)

Forces push on the car in all directions.

151.

Sara swings a bucket full of water around her head. The water doesn't spill out of the bucket. Why not?

a)

A force is pushing out on the water.

b)

Inertia causes the water to move in a straight line.

c)

A force is pushing out on the bucket.

d)

The water would spill out of the bucket.

e)

T

152.

A ball is sitting still on a plate. How could the ball start moving?

a)

The ball's inertia disppears.

b)

All the forces on the ball stop.

c)

A new, balanced force acts on the ball.

d)

A new, unbalanced force acts on the ball.

e)

A

153.

A driver stops suddenly at a red light. He is thrown forward against the seatbelt. Why?

a)

A force pushes him forward when he stops.

b)

The force of the seatbelt pushes him backwards.

c)

A force pushes the whole car forward, including the driver.

d)

The force of the brakes stops the car, but not the driver.

154.

You are throwing a ball to your friend across the room. Which ball will take more force to throw?

a)

They are the same size, so they will take the same force.

b)

The bowling ball has a greater mass, so it will take more force.

c)

The basketball has a smaller mass, so it will take more force.

d)

T

155.

A car runs into a wall. What will happen to the people in the car?

a)

They will be pushed backwards by the force of the wall.

b)

They will be thrown forward because of the force of the car.

c)

They will keep moving forward until they hit their seatbelt or the dashboard.

d)

They will be pushed in all directions equally.

156.

A car turns left suddenly. The drink in the drink holder falls over onto the person sitting in the right-hand seat. Why?

a)

The car turns left, but the drink continues going straight, tipping it to the right.

b)

The car turns left, and the drink is pushed in the opposite direction.

c)

The car turns left, and the force causes the drink to move. It could have fallen either way.

d)

The force of the turn pushes both the car and drink to the left, but the drink isn't pushed as much.

157.

The planets stay in orbit around the sun because of gravity and ______________.

a)

weight

b)

Earth

c)

inertia

158.

What would happen to Earth if there were no inertia?

a)

Earth would crash into the sun

b)

Earth would fly out to space

c)

Earth would collapse

d)

Earth would orbit the moon

159.

What is inertia?

a)

the force that opposes motion

b)

the force of attraction between 2 objects

c)

an object's tendency to stay in its state of motion

d)

a change in an object's speed and/or direction

160.
According to Newton’s first law of motion, a moving object that is not acted on by an unbalanced force will
a)
remain in motion.
b)
eventually come to a stop.
c)
change its momentum.
d)
accelerate.
161.

Why does an 18-wheeler truck have more inertia than a bicycle?

a)

it has more mass

b)

it has more volume

c)

it is not as aerodynamic

d)

It has more space

162.
Which of the following is an example of inertia?
a)
Slamming on the breaks in your car and flying forward.
b)
An apple falling off of a tree. 
c)
Running at a cross country event. 
163.
The law of inertia (Newton’s First Law) applies
a)
to both moving and nonmoving objects
b)
only to moving objects
c)
only to objects that are not moving
164.
Without a force to stop or slow a coasting object, the object will coast forever in a ______ line. 
a)
blue
b)
red
c)
straight
d)
vertical 
165.
What kind(s) of objects have inertia?
a)
all objects with mass
b)
only objects at rest
c)
only objects in motion
d)
only objects whose motion is being changed
166.
a force that opposes motion between any surfaces that are touching
a)
velocity
b)
friction
c)
inertia
d)
position
167.

An astronaut in outer space away from gravitational or frictional forces throws a rock. The rock will...

a)

gradually slow to a stop

b)

continue moving in a straight line at constant speed

168.

The sketch shows a top view of a rock being whirled at the end of a string (clockwise). If the string breaks, the path of the rock is

a)

A

b)

B

c)

C

d)

D

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