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Newtons three laws

Total questions: 32

Worksheet time: 2hrs 30mins

Name
Class
Date
1.

Your friend pushes you for making fun of him/her. What is the reaction force?

a)

You pushing back on your friend

b)

You pushing on the ground

c)

There is no reaction force

d)

Your friend pushing on the ground

2.

When you jump up, you push the earth downwards. Why can't you tell that the earth has moved?

a)

The force of you jumping up doesn't actually push the earth down.

b)

The earth has much more mass so it doesn't move at all

c)

The earth is firmly rooted

d)

The earth has much more mass so you can't tell that it moved

3.

When you hit a tennis ball with a racket...

a)

The ball exerts more force on the racket

b)

The ball and racket exert the same force on each other

c)

The racket exerts more force on the ball

d)

It depends on how hard you hit it

4.

Two students with different masses are sitting in roll-y chairs. The lighter one uses his feet to push the other

a)

The lighter student will move faster because he has less mass

b)

The heavier student will move more because he is being pushed

c)

They will move with the same speed

d)

The heavier student shouldn't move at all

5.

When you jump upwards, what force is moving you upwards once you leave the ground?

a)

Gravity on to you

b)

The air on to you

c)

You on to the earth

d)

There is no upward force once you leave the ground

6.

How is this an example of Newton’s Third law?

a)

Only the ball is using the head

b)

They are both exerting an equal force on each other

c)

Only the head is pushing the ball

7.
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
8.

Newton's Third Law is also known as...

a)

The Law of Inertia

b)

The Law of Acceleration

c)

The Law of Conservation of Momentum (Force Pairs)

9.
Newton's Third Law States...
a)
Objects in motion stay in motion and objects at rest stay at rest
b)
Force is equal to mass times acceleration
c)
For each action there is an equal and opposite reaction
10.
An archer shoots an arrow. The action force is the bowstring against the arrow, the reaction force is...
a)
Air resistance against the bow
b)
the arrow's push against the bowstring
c)
the grip of the archer's hand on the bow
11.
A player throws a ball. The action force is the player impact on the ball. The reaction force is...
a)
The force of the ball impact on the player
b)
The force of the grip of the ball
c)
The celebration the player is thinking of
12.
A player hits a ball with a bat. The action force is the impact of the bat against the ball. The reaction force is...
a)
The grip of the player's hands on the ball
b)
the air resistance of the ball
c)
the force of the ball against the bat
13.
A rocket pushes exhaust 10, 000 N. Without any other forces acting on the rocket, how much force does the rocket go forward?
a)
15,000 N
b)
1,000 N
c)
10, 000 N
14.
What is the reaction force to a foot pushing down on the floor?
a)
The foot going through the floor
b)
The floor pushing back against the foot
c)
The floor breaking to the foot
15.
If you double the mass of an object with the same force apply on it, the acceleration will
a)
double
b)
cut in half
c)
the same
d)
zero
16.
Which is the best example of Newton's First Law of Motion?
a)
a basketball thrown in the air falls to the ground
b)
a soccer ball remains motionless until it is kicked by a player
c)
a baseball player swings at an approaching ball
d)
an ice skater pushes back from a wall and moves backwards
17.
What Newtons law does this picture represent
a)
Newtons 2nd law 
b)
Law of gravity 
c)
Newtons 1st law
d)
Newtons 5th law
18.
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
19.

Match the following Law of motion with the correct example

a)

Newton's 1st law of motion

1.

Roll a ball across smooth/rough surfaces. The ball rolls faster on smooth because less fiction

b)

Newton's 2nd law of motion

2.

Hit a ball with 2 different forces, the ball will have greater acceleration due to larger force

c)

Newton's 3rd of motion

3.

Bouncing the ball on the court is the action, the floor pushing the ball back up is the reaction

20.
What is the formula for force?
a)
F=M/A
b)
F=A/M
c)
F=M*A
d)
F=M*F
21.

The risk of injury in a car accident is much greater if occupants do not wear a seat belt. Which of Newton's laws explain why this is true?

a)

Law of force and acceleration

b)

Law of gravity

c)

Law of action and reaction

d)

Law of inertia

22.
What law of motion does this picture represent?
a)
Newtons 1st law
b)
Newtons 4th law 
c)
Newtons 3rd law 
d)
Newtons 2nd law
23.

Which best explains the law of force and acceleration (Newton's 2nd Law of Motion)

a)

Restraints keep passengers from falling out of a roller coaster

b)

Riders must be certain heights so they have enough mass to ride

c)

A larger force will be required to accelerate a roller coaster with more people

d)

A roller coaster that goes up must also come down due to the force of gravity

24.

This law of motion states that heavier objects need a larger force to make them move.

a)

Newton's First Law of Motion

b)

Newton's Second Law of Motion

c)

Newton's Third Law of Motion

d)

All of the Above

25.

A skater pushes another skater forward, but the one pushing moves backwards.

a)

Newton's 1st Law

b)

Newton's 2nd Law

c)

Newton's 3rd Law

26.

The harder you hit a baseball, the faster it accelerates.

a)

Newton's 1st Law

b)

Newton's 2nd Law

c)

Newton's 3rd Law

27.

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

28.

The harder you hit a baseball, the faster it accelerates.

a)

Newton's 1st Law

b)

Newton's 2nd Law

c)

Newton's 3rd Law

29.
Why do you lean towards the left when a car turns right
a)
because of inertia
b)
because of gravity
c)
because of buoyancy
d)
because of velocity
30.
When a Civil War era cannon is fired, the force of the gas produced by exploding powder propels the cannonball forward at a high speed. According to Newton's 3rd law
a)
the cannon itself moves backward
b)
the cannon itself does not move due to inertia
c)
the cannon itself moves forward as well with the momenturm
d)
the cannon itself moves forward with the inertia of the cannonball
31.
Why do you lean towards the left when a car turns right
a)
because of inertia
b)
because of gravity
c)
because of buoyancy
d)
because of velocity
32.
When a Civil War era cannon is fired, the force of the gas produced by exploding powder propels the cannonball forward at a high speed. According to Newton's 3rd law
a)
the cannon itself moves backward
b)
the cannon itself does not move due to inertia
c)
the cannon itself moves forward as well with the momenturm
d)
the cannon itself moves forward with the inertia of the cannonball

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