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Newton's Three Laws of Motion

Total questions: 68

Worksheet time: 59mins

Name
Class
Date
1.
A force is a push or a pull on an object that results from its interaction with another object.
a)
True
b)
False
2.
Only large objects with mass have gravity.
a)
True
b)
False
3.
The combined force of all forces acting on an object is the  ___ force.
a)
net
b)
big
c)
bad
d)
use
4.
When the forces acting upon an object are UNBALANCED , the object will ____
a)
stay still
b)
move
c)
bounce
d)
fly
5.
Acceleration is a change in _____
a)
velocity
b)
cars
c)
school
d)
me
6.
Newton's second law is applied as the formula _____
a)
Force = Mass X Acceleration
b)
Speed = distance / time
c)
a + b = c
d)
huh?
7.
The formula for average speed is ______
hint: Miles/hour
a)
Speed = Distance / time 
b)
Speed = Distance X time
c)
Speed = ??? 
d)
something fast
8.
The SI units for force are...
a)
Kilograms
b)
Newtons
c)
Meters per second
d)
Pounds
9.
Which of the following explains the difference between speed and velocity?
a)
One has motion, and the other does not.
b)
One has direction, and the other does not.
c)
One involves time, and the other does not.
d)
One involves acceleration, and the other does not.
10.
Acceleration is caused by a force acting on a mass.
a)
Newton’s first law of motion
b)
Newton’s second law of motion
c)
Newton’s third law of motion
11.
For a force on an object there is an equal and opposite force.
a)
Newton’s first law of motion
b)
Newton’s second law of motion
c)
Newton’s third law of motion
12.
A(n) __________ is a push or pull.
a)
newton
b)
acceleration
c)
force
d)
momentum
13.
In order to be ____ forces, their effects must cancel each other out and not cause a change in an object's motion.
a)
balanced
b)
strong
c)
weak
d)
normal
14.
____ is the rubbing force that acts against motion between two touching surfaces.
a)
Acceleration
b)
Normal force
c)
Momentum
d)
Friction
15.
Forces always act in equal and opposite pairs.
a)
Newton's 1st Law
b)
Newton's 3rd Law
16.
If there is a big mass, it would need a stronger force to accelerate it.  Which law does this describe?
a)
Newton's 1st Law
b)
Newton's 2nd Law
c)
Newton's 3rd Law
17.
In a football game, two players tackle each other so hard that they both fly in opposite directions after they hit each other.  What law of motion is this an example of?
a)
Newton's 2nd Law
b)
Newton's 3rd Law
18.
A student leaves a pencil on a desk and it stays there until I pick it up. 
a)
1st Law
b)
2nd Law
19.
What is Newton's First Law known as? The Law of
a)
Inertia
b)
Mass
c)
Gravity
20.

Inertia is used when explaining Newton's

a)

first law of motion

b)

second law of motion

c)

third law of motion

21.

When an airplane takes off, you tend to fall backward because of

a)

friction

b)

gravity

c)

inertia

22.

As an ice skater pushes harder with his leg muscles, he begins to move faster.

a)

Newton's first law

b)

Newton's second law

c)

Newton's third law

23.

When you paddle a canoe, the canoe goes forward.

a)

Newton's first law

b)

Newton's second law

c)

Newton's third law

24.

When you are standing up in a train, and the train suddenly stops, your body continues to go forward.

a)

Newton's first law

b)

Newton's second law

c)

Newton's third law

25.

After you start up your motorbike, as you give it more gas, it goes faster.

a)

Newton's first law

b)

Newton's second law

c)

Newton's third law

26.

When Bobby, age 5, and his dad are skipping pebbles on the pond, the pebbles that Bobby's dad throws go farther and faster then his.

a)

Newton's first law

b)

Newton's second law

c)

Newton's third law

27.

Who is the scientist who determined the laws of motion?

a)

Galileo

b)

Newton

c)

Einstein

28.

What is always required to overcome inertia?

a)

force of friction

b)

force of gravity

c)

unbalanced force

29.

An object at rest will remain at rest as long as the net force acting on it is

a)

positive

b)

zero

c)

strong

30.

Newton's first law of motion applies only to stationary objects.

a)

True

b)

False

31.

Newton's third law of motion describes how forces act in pairs.

a)

True

b)

False

32.

How many Laws of Motion are there?

a)

31

b)

3

c)

2

d)

20

33.

Which law best explains why we need to wear seat belts?

a)

Third Law of Motion

b)

First Law of Motion

c)

Second Law of Motion

d)

None of the above

34.

Which law says that force is equal to mass times acceleration (F=MA)?

a)

Third Law of Motion

b)

First Law of Motion

c)

Second Law of Motion

d)

None of the above

35.

Which law says that heavier objects require more force than lighter objects to move or accelerate them?

a)

Third Law of Motion

b)

First Law of Motion

c)

Second Law of Motion

d)

None of the above

36.

Which law says that for every action there is an equal and opposite reaction?

a)

Third Law of Motion

b)

First Law of Motion

c)

Second Law of Motion

d)

None of the above

37.

Which law is shown in this picture?

a)

1st

b)

2nd

c)

3rd

38.
An archer pulls the bowstring back, then releases the string and the arrow flies forward. Pulling the string back is the...
a)
action force
b)
reaction force
c)
net force
d)
inertia
39.
An archer pulls the bowstring back, then releases the string and the arrow flies forward. The arrow flying forward is the...
a)
action force
b)
reaction force
c)
net force
d)
inertia
40.

As more unbalanced force is applied to an object, its acceleration:

a)

stays the same

b)

decreases

c)

increases

41.

Newton's third law of motion states that for every action there is:

a)

an opposite, but equal reaction.

b)

an opposite and equal reaction.

c)

a reaction.

42.

If Mrs. Dircks dropped her Pepsi bottle, what is the force that pulls the bottle to the ground?

a)

motion

b)

friction

c)

air resistance

d)

gravity

43.

Friction and air resistance are forces that:

a)

can make an object slow down or stop

b)

pulls an object toward the center of Earth

c)

changes an object's position

d)

can't be described

44.

A force is:

a)

a push

b)

a pull

c)

both

d)

neither

45.
When a heavy football player and a light one run into each other, who exerts more force?
a)
The heavy one
b)
The light one
c)
They are equal
d)
There is no such thing as force 
46.
What is Newton's First Law of Motion?
a)
F = m x a
b)
Every action has an equal an opposite reaction
c)
An object at rests stays, an object in motion stays in motion
d)
Friction
47.
Which law best describes a satellite orbiting the earth?
a)
Law of Inertia
b)
Law of Mass and Acceleration
c)
Law of Action Reaction
48.
What is Newton's Second Law of Motion?
a)
F = m x a
b)
Action/Reaction
c)
Object in motion will stay in motion, object at rest will stay at rest
d)
Velocity
49.
Which force produces a change in motion?
a)
Unbalanced force
b)
Balanced force
c)
Gravitational force
d)
Frictional force
50.
What is the standard unit force is measured in?
a)
Newton
b)
Gram
c)
Pound
d)
Meter
51.
According to Newton's Second Law, if you increase the force applied to an object:
a)
It accelerates more
b)
It doesn't move
c)
You get more inertia
d)
It decelerates
52.
Which has more inertia--
a)
Truck
b)
Cat
c)
Ant
d)
Skateboard
53.
1000 kg is the -----
a)
Force
b)
Mass
c)
Acceleration
d)
Weight
54.
20 N is the ----
a)
Mass
b)
Force
c)
Acceleration
d)
Weight
55.
45 meters per second squared is the--
a)
Acceleration
b)
Mass
c)
Weight
d)
Force
56.
If an object is stationary (not moving) the forces acting upon it are---
a)
Balanced
b)
Unbalanced
c)
Weak
d)
Hulk Smash?
57.
Forces always act in equal and opposite pairs.
a)
Newton's 1st Law
b)
Newton's 2nd Law
c)
Newton's 3rd Law
d)
Newton's 4th Law
58.

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

59.

It is much more difficult to move a dresser full of clothes than an empty dresser.

a)

Law 1

b)

Law 2

c)

Law 3

60.

A book sitting on the table does not move.

a)

Law 1

b)

Law 2

c)

Law 3

61.

A skateboarder pushes the ground BACKWARDS which causes the board to move FORWARD.

a)

Law 1

b)

Law 2

c)

Law 3

62.
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.
63.

Which vehicle has more inertia?

a)

Bike

b)

Car

c)

Train

d)

Van

64.

Which is related to inertia?

a)

Time

b)

Force

c)

Acceleration

d)

Mass

65.

A book is sitting on a dashboard of a car that stopped at a traffic light. As the car starts to move forward, the book slides of the dashboard. Which of the following is the CORRECT explanation for this?

a)

The object had inertia.

b)

The supernatural force took over.

c)

. There was grease on the dashboard.

d)

Air resistance made the book move forward.

66.

According to Newton’s first law of motion, a moving object that is not acted on by an unbalanced force will _________.

a)

accelerates

b)

remains in motion

c)

changes its momentum

d)

eventually come to a stop

67.

Which of the two vehicles requires a greater force to accelerate at the same acceleration?

a)

The car requires greater force.

b)

The truck requires greater force

c)

The two vehicles require different amount of force.

d)

The two vehicles require the same amount of force.

68.

A 3.5 kg papaya is pushed across a table. If the acceleration of the papaya is 2 m/s2 to the left, what is the external force exerted on the papaya?

a)

1 N

b)

1.75 N

c)

7 N

d)

7.5 N

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