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Forces and Newton's Laws

Total questions: 28

Worksheet time: 25mins

Name
Class
Date
1.
What is the net force?
a)
20 N 
b)
0 N 
c)
400 N 
d)
40 N 
2.

What is the unit to MEASURE force?

a)

Kilogram

b)

Meter

c)

Pounds

d)

Newton

3.
What is the net force?
a)
10 N
b)
0 N
c)
25 N
d)
1 N
4.
If these teams 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.
5.
Balanced or unbalanced?
a)
balanced
b)
unbalanced
6.
What will cause an object to move?
a)
Applied forces
b)
Balanced forces
c)
Unbalanced forces
7.
What force holds the planets in motion around the sun?
a)
Magnetic
b)
Electrical
c)
Gravitational
d)
Air Resistance
8.
What force ultimately slows the roller coaster to a stop?
a)
Applied
b)
Normal
c)
Friction
d)
Magnetic
9.

When an object is moving, friction acts in the _______ direction as the motion.

a)

perpendicular

b)

same

c)

opposite

d)

precise

10.

A type of friction that occurs when air pushes against a moving object it to decelerate.

a)

surface area

b)

air resistance

c)

velocity

d)

gravity

11.
What do we call the forwards force produced by an aeroplane's engine or propeller?
a)
thrust
b)
friction
c)
weight
d)
gravity
12.

A contact force is from

a)

objects physically touching

b)

far apart objects

c)

not touching object

d)

always a pull

13.

The three examples pictured are of

a)

Non-contact Forces

b)

Contact Forces

14.

The force between the phone and the mount is a

a)

contact force

b)

non-contact force

15.

Which of the following is an example of balancing forces?

a)

A Book resting on the table.

b)

A pencil is knocked off the desk.

16.

What is Newton's 1st Law?

a)

For every action there is an equal and opposite reaction.

b)

An object at rest will stay at rest, an object in motion will stay in motion, unless an unbalanced force acts upon it.

17.

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.

18.

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.

19.

What explains why objects resist changes in their state of motion?

a)

gravity

b)

inertia

c)

force

d)

friction

20.

What explains a quantity that has BOTH speed and direction?

a)

Inertia

b)

Force

c)

Speed

d)

Velocity

21.

Newton's first law states that an object must travel at a constant speed and in ___________, unless an unbalanced force acts on it.

a)

in a circle

b)

a wave like manner

c)

the same direction

22.

Looking at the image. Decide if this is balanced or unbalanced.

a)

Unbalanced

b)

Balanced

23.

Looking at the image. Decide if this is balanced or unbalanced.

a)

Unbalanced

b)

Balanced

24.

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

a)

Friction

b)

Gravity

c)

Inertia

25.
A person steps out of the boat and onto the dock.  As the person moves forward onto the dock, the boat moves backward.  Which statement best describes the backward motion of the boat as the person steps forward?
a)
For every action there is an equal and opposite reaction.
b)
Every mass exerts a force on every other mass.
c)
An object at rest tends to stay at rest.
d)
Friction opposes the motion of an object.
26.
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
27.
The combination of all the forces acting on an object is the...
a)
net force
b)
action force
c)
reaction force
d)
balance force
28.
A force of 90N is applied to each cart below, which one will accelerate the fastest?
a)
Cart 1
b)
Cart 2
c)
Cart 3 
d)
Cart 4