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Newtons 3 Laws of Motion - Quick Review

Total questions: 68

Worksheet time: 2hrs 42mins

Name
Class
Date
1.
What is a PUSH or PULL of an object?
a)
Motion
b)
Force
c)
Friction
d)
Gravity
2.
Why is it harder for the boy in Image B to get down the hill?
a)
Motion
b)
Friction
c)
Work
d)
Displacement
3.
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.
4.
It takes more force to accelerate the iron man on the left than the iron man on the right because the iron man on the left has more mass. This best describes
a)
Newton's first law, the law of inertia
b)
Newton's second law, the law of acceleration
c)
Newton's third law, the law of action reaction 
d)
The law of universal gravitation
5.
The formula 
? = mass x acceleration
or 
? = m x a 
is used to find 
a)
Force
b)
Velocity
c)
Momentum
d)
Gravity
6.
For every action, there is an equal and opposite reaction.
a)
Newton's
1st
Law of Motion
b)
Newton's
2nd
Law of Motion
c)
Newton's
3rd
Law of Motion
7.
a)
1st
b)
2nd
c)
3rd
8.
a)
1st
b)
2nd
c)
3rd
9.
What is the attractive force that exists between all objects that have mass?
a)
Weight
b)
Mass 
c)
Gravity
d)
Viscosity
10.
If an object is stationary (not moving) the forces acting upon it are _____________
a)
unbalanced
b)
weak
c)
balanced
d)
Hulk Smash!
11.

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

12.
Are forces balanced or unbalanced when a marble speeds up rolling down a ramp?
a)
Balanced
b)
Unbalanced
13.
What is Newton's First Law known as? The Law of
a)
Friction
b)
Mass
c)
Inertia
d)
Gravity
14.
What is Newton's First Law
a)
F=ma
b)
Every action has an equal and opposite reaction
c)
An object at rest stays at rest, an object in motion stays in motion. 
d)
Friction 
15.
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
16.

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

17.

When the force on a car is doubled, the acceleration is doubled.

a)

Newton's 1st Law

b)

Newton's 2nd Law

c)

Newton's 3rd Law

18.

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

a)

Newton's 1st Law

b)

Newton's 2nd Law

c)

Newton's 3rd Law

19.

You are carrying a lunch tray when you bump into the edge of a table. Although the tray did not tip, your milk falls off of the front of the tray.

a)

Newton's

1st

Law of Motion

b)

Newton's

2nd

Law of Motion

c)

Newton's

3rd

Law of Motion

20.
Why is it harder to push a van filled with bowling balls than it is to push a van with basketballs?
a)
The mass of the car is greater than the mass of the basketballs
b)
The mass of the bowling balls is greater than the mass of the basketballs
c)
The van with the basketballs is bigger than the van with the bowling balls
d)
It should be equally as hard to push the two vans
21.
What is the net force
a)
10 N
b)
0 N
c)
25 N
d)
1 N
22.

When the force on a car is doubled, the acceleration is doubled.

a)

Newton's 1st Law

b)

Newton's 2nd Law

c)

Newton's 3rd Law

23.

Which unit is used to measure speed?

a)

Newtons (N)

b)

Meters (m)

c)

Meters per second (m/s)

d)

Kilograms (kg)

24.

What does Newton's first law state about an object's motion?

a)

An object's motion can change without any force acting on it.

b)

A force is needed to keep an object moving.

c)

An object's motion cannot change unless a force acts on it.

d)

Friction is the only force affecting an object's motion.

25.

What force opposes the motion of an object in everyday situations?

a)

Gravity

b)

Friction

c)

Magnetism

d)

Electromagnetic Force

26.

According to Newton's second law, what happens to the acceleration of an object if the force applied to it increases?

a)

The acceleration decreases

b)

The acceleration remains the same

c)

The acceleration increases

d)

The acceleration becomes negative

27.

Newton's second law is summarized by which equation?

a)

F=m×aF = m \times a

b)

F=maF = \frac{m}{a}

c)

F=m+aF = m + a

28.

What does Newton's third law state about forces?

a)

Forces act independently of each other

b)

Forces always result in motion

c)

Every force has an equal and opposite reaction force

d)

Forces are directly proportional to mass

29.

When one object exerts a force on another, what happens according to Newton's third law?

a)

The object doesn't react

b)

The other object applies an equal and opposite force

c)

The other object applies a different sized force

d)

The other object applies a force in the same direction

30.

What is the unit used to measure force?

a)

Newtons (N)

b)

Kilograms (kg)

c)

Meters per second (m/s)

d)

Joules (J)

31.

What force is responsible for slowing down a rolling ball on the ground?

a)

Gravity

b)

Magnetism

c)

Friction

d)

Electromagnetic Force

32.

Which law of motion describes an object's resistance to a change in its motion?

a)

Newton's 1st Law

b)

Newton's 2nd Law

c)

Newton's 3rd Law

d)

None of these

33.

What term describes the change in speed per unit of time?

a)

Mass

b)

Friction

c)

Acceleration

d)

Force

34.

When forces acting on an object are balanced, what happens to the object's motion?

a)

The object accelerates

b)

The object moves in a circular path

c)

The object slows down

d)

The object's motion remains unchanged

35.

Which law of motion states that the force required to accelerate an object is directly proportional to its mass?

a)

Newton's 1st Law

b)

Newton's 2nd Law

c)

Newton's 3rd Law

d)

None of these

36.

What is the unit for measuring mass?

a)

Newtons (N)

b)

Kilograms (kg)

c)

Meters per second (m/s)

d)

Joules (J)

37.

What type of force is needed to change an object's motion?

a)

Balanced Forces

b)

Frictional Forces

c)

Gravitational Forces

d)

Unbalanced Forces

38.

According to Newton's 2nd Law, what happens to acceleration if force remains constant but mass increases? The acceleration will _____.

a)

decrease

b)

increase

c)

remain constant

d)

become zero

39.

When forces on an object are unbalanced, what happens to the object's motion?

a)

It remains unchanged

b)

It decelerates

c)

It accelerates

d)

It moves in a circular path

40.

Which of the following is a unit of acceleration?

a)

Kilograms (kg)

b)

Meters per second squared (m/s2)

c)

Newtons (N)

d)

Joules (J)

41.

What is the effect of increasing mass on the gravitational force between two objects?

a)

The gravitational force increases

b)

The gravitational force decreases

c)

The gravitational force remains unchanged

d)

The gravitational force becomes zero

42.
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
43.
What is the standard unit force is measured in?
a)
Newtons
b)
pounds
c)
grams
d)
meters
44.
What is Newton's First Law known as? The Law of
a)
Friction
b)
Mass
c)
Inertia
d)
Gravity
45.
What is the formula for force?
a)
F=M/A
b)
F=MA
c)
F=AX
d)
what is force?
46.
Slamming on the brakes in a moving car makes a passenger move forward against his or her seat belt because
a)
the passenger has the inertia to keep moving forward
b)
the passenger is being pushed by the seats of the car
c)
the passenger is better able to stop themselves in this manner
d)
the passenger has an equal and opposite force supporting their weight
47.

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

a)

stays the same

b)

decreases

c)

increases

48.

A 20 kg bike accelerates at 10 m/s2. What was the force?

a)

30 Newtons

b)

2 Newtons

c)

200 Newtons

d)

10 Newtons

49.

An object in motion stops when.....

a)

It falls of an edge.

b)

it is acted upon by an outside force.

c)

It is eaten

d)

It never stops

50.

The force that prevents a ball rolling on the ground from continuing on it's path forever is...

a)

Friction

b)

Gravity

c)

Inertia

51.
An empty truck and a fully loaded truck are next to each other at a traffic light. When the light turns green, the lighter truck increases speed more quickly. Which of these best explains this situations
a)
Newton's first law
b)
Newton's second law
c)
Newton's third law
d)
Conservation of momentum
52.
The combination of all the forces acting on an object is the...
a)
net force
b)
action force
c)
reaction force
d)
balance force
53.

____ force is needed to move objects of larger mass.

a)

less

b)

equal

c)

more

d)

light

54.

What explains a quantity that has BOTH speed and direction?

a)

Inertia

b)

Force

c)

Speed

d)

Velocity

55.
What two measurements are necessary for calculating speed?
a)
Mass and time
b)
Temperature and mass
c)
Mass and distance
d)
Distance and time
56.
What is the speed of an object that travels 60 meters in 4 seconds?
a)
240 m/s
b)
15 m/s
c)
0.067 m/s
d)
15 mph
57.
If a 10 kilogram object had a force of 50 newton's applied to it, what would its acceleration be?
a)
15 m/s^2
b)
5 m/s^2
c)
.5 m/s^2
d)
10 m/s^2
58.

A force is:

a)

a push

b)

a pull

c)

both

d)

neither

59.
Rougher surfaces have ...
a)
greater friction
b)
less friction
c)
the same level of friction
60.

If the man pushes with an equal amount of force, which object will accelerate more?

a)

Car because it has more mass

b)

Lawnmower because it has less mass

c)

Car because it has less mass

d)

Lawnmower because it has more mass

61.

A cotton ball and a iron ball are thrown from the same height. Which of the following will reach the ground first?

a)

the cotton ball reaches first

b)

the iron ball reaches first

c)

both the balls reach same time

d)

none of these

62.

What happens to the mass of an object if you double the force pushing on it?

a)

Mass will remain the same.

b)

Mass will double in magnitude

c)

Mass will decrease to 1/2 of its original.

d)

Mass will decrease to 1/4 of its original.

63.

What happens to the acceleration of an object if you double the force pushing on it?

a)

Acceleration will remain the same.

b)

Acceleration will double in magnitude

c)

Acceleration will decrease to 1/2 of its original.

d)

Acceleration will decrease to 1/4 of its original.

64.

What happens to the acceleration of an object if you double the mass being pushed or pulled?

a)

Acceleration will remain the same.

b)

Acceleration will double in magnitude

c)

Acceleration will decrease to 1/2 of its original.

d)

Acceleration will decrease to 1/4 of its original.

65.

The swimmer's arms and legs push and kick with a strong force. As a result, she moves faster through the water.

a)

Newton's 1st Law

b)

Newton's 2nd Law

c)

Newton's 3rd Law

d)

None of them

66.
What is the net force?
a)
30 N 
b)
25 N 
c)
5 N 
d)
55 N 
67.
Who is the scientist who came up with the Laws of Motion?
a)
Sir Issac Newton
b)
The Greeks
c)
John Dalton
d)
Sir John Newt
68.
Balanced or Unbalanced?
a)
Balanced 
b)
Unbalanced

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