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Science 5.P.1.4 Newton's Laws of Motion

Total questions: 70

Worksheet time: 2hrs 20mins

Name
Class
Date
1.

The English Scientist who developed three laws of motion was called:

a)

Sir Isaac Newman

b)

Sir Isaac Newton

c)

Albert Einstein

d)

Mr. Fig Newton

2.

Because of inertia, a resting object ________.

a)

will remain at rest

b)

will move at a constant speed

c)

will eventually move

d)

is unbalanced

3.

The first law of motion states that objects in motion will:

a)

stop

b)

accelerate

c)

stay in motion

d)

rest

4.

The first law of motion states that objects at rest will stay at rest unless acted upon by an unbalanced:

a)

motion

b)

force

c)

inertia

d)

acceleration

5.

Newton's second law of motion states that an unbalanced force is equal to mass times:

a)

acceleration

b)

force

c)

motion

d)

inertia

6.

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

a)

stays the same

b)

decreases

c)

increases

7.

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.

8.

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

9.

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

10.

A force is:

a)

a push

b)

a pull

c)

both

d)

neither

11.
What law is best described by inertia?
a)
1st
b)
2nd
c)
3rd
12.
What is Newtons 1st law of motion?
a)
Force= Mass multiplied by acceleration 
b)
An object at rest stays at rest unless acted on an unbalanced force. (inertia)
c)
For every action there is a equal and opposite  re-action.
d)
law of gravity 
13.

What law of motion does this picture represent?

a)

Newton's 3rd law

b)

Newton's 4th law

c)

Newton's 1st law

d)

Newton's 2nd law

14.

What is Newton's 2nd law of motion?

a)

Inertia

b)

Force= Mass multiplied by acceleration

c)

For every action there is a equal and opposite re-action.

d)

Law of gravity

15.

Objects with greater mass have a greater inertia; objects with less mass have less inertia.

a)

true

b)

false

16.

A unbalanced force means that an object is

a)

zero net force

b)

changing its motion

c)

sitting still

d)

object at rest

17.

Newton's 3rd Law states that for every action there is an equal and opposite ________.

a)

reaction

b)

satisfaction

c)

fraction

d)

transaction

18.

A ______ is a push or pull on an object.

a)

force

b)

speed

c)

acceleration

d)

velocity

19.

Newton's 2nd Law says the acceleration of an object depends on its _______ and ______. (Choose two answers)

a)

force or applied force

b)

weight

c)

gravity

d)

mass

20.

Net force is a combination of all ________ acting on an object.

a)

forces

b)

speeds

c)

accelerations

d)

velocities

21.

if an object stays still or continues moving at the same speed and in the same direction, it is a _______ force.

a)

weak

b)

strong

c)

balanced

d)

unbalanced

22.

What is Newton's 2nd Law?

a)

For every action there is an equal and opposite reaction.

b)

Acceleration depends on two variables, the mass of the object and the amount of force.

23.

What is Newton's 3rd Law?

a)

For every action there is an equal and opposite reaction.

b)

Acceleration depends on two variables, the mass of the object and the amount of force.

24.

What explains a quantity that has BOTH speed and direction?

a)

Inertia

b)

Force

c)

Speed

d)

Velocity

25.

The reason a boat bounces off the dock when it hits it.

a)

The boat and the dock repel each other.

b)

When the boat exerts a force on the dock, the dock exerts a force on the boat.

26.

If an object is accelerating, then the forces acting on it must be:

a)

Balanced

b)

Unbalanced

27.
 What is the unit called that measures force?
a)
Isaac
b)
Yee
c)
Newton
d)
kilogram
28.
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
29.
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.
30.

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

31.

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

32.

When a truck stops suddenly, the packages on its truckbed continue to move forward. Which law is this?

a)

Law 1

b)

Law 2

c)

Law 3

33.

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

34.

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.

35.

What is the formula for the 2nd law of motion?

a)

a=lw

b)

F=m/a

c)

F=ma

36.

Force is related to mass and acceleration. Which law is this?

a)

Law 1

b)

Law 2

c)

Law 3

37.

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

Which of Newton's Laws of Motion does this statement best represent?

a)

Law 1

b)

Law 2

c)

Law 3

38.

A book sitting on the table does not move.

Which of Newton's Laws of Motion does this statement best represent?

a)

Law 1

b)

Law 2

c)

Law 3

39.

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

Which of Newton's Laws of Motion does this statement best represent?

a)

Law 1

b)

Law 2

c)

Law 3

40.
What is a PUSH or PULL of an object?
a)
Motion
b)
Force
c)
Friction
d)
Gravity
41.
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.
42.

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

Which of Newton's Laws of Motion does this statement best represent?

a)
Newton's
1st
Law of Motion
b)
Newton's
2nd
Law of Motion
c)
Newton's
3rd
Law of Motion
43.

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

Which of Newton's Laws of Motion does this statement best represent?

a)
Newton's
1st
Law of Motion
b)
Newton's
2nd
Law of Motion
c)
Newton's
3rd
Law of Motion
44.

Which of Newton's Laws of Motion does the picture best represent?

a)
1st
b)
2nd
c)
3rd
45.

The English Scientist who developed three laws of motion was called:

a)

Sir Isaac Newman

b)

Sir Isaac Newton

c)

Albert Einstein

d)

Mr. Fig Newton

46.

The first law of motion states that objects in motion will:

a)

stop

b)

accelerate

c)

stay in motion

d)

rest

47.

The first law of motion states that objects at rest will stay at rest unless acted upon by an unbalanced:

a)

motion

b)

force

c)

inertia

d)

acceleration

48.
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 
49.
What pulls a ball back to earth?
a)
Gas
b)
Friction
c)
Gravity
d)
Molecules
50.
How many laws of motion does Newton have?
a)
One
b)
Two
c)
Three
d)
Four
51.

A book is lying at rest on a table. The book will remain there at rest because

a)

there is a net force but the book has too much inertia

b)

there are no forces acting on it at all

c)

there is no net force on the book

d)

there is a net force, but the book is too heavy to move

52.

A hockey puck slides on ice at constant velocity. What is the net force acting on the puck?

a)

equal to its weight

b)

zero

c)

less than its weight but more than zero

d)

depends on the speed of the puck

53.
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.
54.
A student pushes a box to right with a force of 10N while a young boy pushes the box to the left with a force of 8N. What is the sum of all forces on the box? 
a)
18N left
b)
18N right
c)
2N right
d)
2N left
55.
Unit of mass
a)
m/s 2
b)
m/s
c)
newtons
d)
kg
56.
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
57.
What is Newton's First Law known as? The Law of
a)
Friction
b)
Mass
c)
Inertia
d)
Gravity
58.

Which law is this picture illustrating?

a)

Law 1

b)

Law 2

c)

Law 3

59.
When the air is released from a balloon, the air moves in one direction, and the balloon moves in the opposite direction. Which law best explains the motion of the balloon?
a)
Newton's Law of Inertia
b)
Newton's Law of F=ma
c)

Newton's Law of Action/Reaction

d)
Newton's Law of Biology
60.
Which one of Newton’s Laws of Motion best explains why the dishes do not move when the table cloth is removed?
a)
Newton's Law of Inertia
b)
Newton's Law of F=ma
c)

Newton's Law of Action/Reaction

d)
Newton's Law of Biology
61.
____ is energy possessed by an object due to its motion or movement.
a)
thermal energy
b)
potential energy
c)
kinetic energy
d)
solar energy
62.
Lighter objects have LESSER inertia than heavier objects.
a)
True
b)
False
63.
____ is a force that occurs when an object rubs against another object.
a)
Motion
b)
Friction
c)
Velocity
d)
Speed
64.
Jasmyn can run 50 yards in 10 seconds and Jaylah can run 100 yards in 20 seconds. Who has a faster speed? (speed is distance divided by time; S = d/t)
a)
Jasmyn
b)
Jaylah
c)
Both have the same speed.
65.
Which one needs a greater net force to move, a kilogram of feathers or a kilogram of iron? 
a)
feathers 
b)
iron
c)
same
d)
depends on their friction
66.

You kick a smooth flat stone out on a frozen lake. The stone slides, slows down and eventually stops. You conclude that

a)

no net force acted on the stone

b)

a net force acted on it all along

c)

the stone has a natural tendency to be at rest

d)

the force pushing the stone forward finally stopped pushing on it

67.

Consider a cart on a horizontal frictionless table. Once the cart has been given a push and released, it move with constant velocity. What would have to be done in order to have the cart continue with constant acceleration?

a)

push the cart longer before release

b)

change the mass of the cart

c)

push the cart continuously

d)

push the cart harder before release

68.
A student pushes a box to right with a force of 10N while a young boy pushes the box to the left with a force of 8N. What is the sum of all forces on the box? 
a)
18N left
b)
18N right
c)
2N right
d)
2N left
69.
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
70.
Object X has twice the mass of Object Y.  Both objects are accelerating at the same rate.  Which statement best describes the motions of Object X and Object Y.
a)
Object X is travelling at twice the speed as Object Y.
b)
Object X is travelling at half the speed as Object Y.
c)
Object X requires twice the force to accelerate at the same rate as Object Y.
d)
Object X requires half the force to accelerate at the same rate as Object Y.

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