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Worksheets

Newton's Laws

Total questions: 22

Worksheet time: 44mins

Name
Class
Date
1.
What law is best described by inertia?
a)
1st
b)
2nd
c)
3rd
2.
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 
3.

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

4.

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

5.

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

a)

true

b)

false

6.

A unbalanced force means that an object is

a)

zero net force

b)

changing its motion

c)

sitting still

d)

object at rest

7.

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

a)

reaction

b)

satisfaction

c)

fraction

d)

transaction

8.

A ______ is a push or pull on an object.

a)

force

b)

speed

c)

acceleration

d)

velocity

9.

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

10.

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

a)

forces

b)

speeds

c)

accelerations

d)

velocities

11.

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

12.

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.

13.

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.

14.

What explains a quantity that has BOTH speed and direction?

a)

Inertia

b)

Force

c)

Speed

d)

Velocity

15.

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.

16.

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

a)

Balanced

b)

Unbalanced

17.
 What is the unit called that measures force?
a)
Isaac
b)
Yee
c)
Newton
d)
kilogram
18.
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
19.
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.
20.

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

21.

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

22.

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