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Forces

Total questions: 45

Worksheet time: 2hrs 13mins

Name
Class
Date
1.
Which of these is NOT a force?
a)
Friction
b)
Air resistance
c)
Water resistance
d)
Electrical resistance
2.
What is the force that causes objects to fall to Earth?
a)
Air resistance
b)
Gravity
c)
Water resistance
d)
Pressure
3.
What is the name of the units that we measure force in?
a)
Einsteins 
b)
Newtons
c)
Kg
d)
Metres
4.
In which direction does gravity act?
a)
Downwards
b)
Upwards
c)
In all directions
d)
Towards the centre of the Earth
5.
Which is the correct definition of a 'force'?
a)
An influence, which cannot be measured, that causes something to move, stop moving or change direction.
b)
An influence, which can be measured, that causes something to move, stop moving or change direction.
c)
Something which has power.
d)
An influence, which can be measured, that causes something to move.
6.
What force does a parachute use to slow things down before hitting the ground?
a)
Friction
b)
Air resistance
c)
Water resistance
d)
Wind
7.
When two objects rub together, what force do they produce
a)
Gravity
b)
Air resistance
c)
Friction
d)
Water resistance
8.
Which of these uses friction?
a)
A parachute
b)
A ball falling through the sky
c)
Brakes on a bike
d)
A wind turbine
9.
What force holds the planets in motion around the sun?
a)
Magnetic
b)
Electrical
c)
Gravitational
d)
Air Resistance
10.
What does the strength of gravity between two objects depend upon?
a)
Mass & distance
b)
Mass & weight
c)
Gravity & inertia
d)
Inertia & mass
11.
All objects in the universe have a gravitational attraction to each other. 
a)
True
b)
False
12.
What force ultimately slows the roller coaster to a stop?
a)
Applied
b)
Normal
c)
Friction
d)
Magnetic
13.
An _______ force must act on an object for it to CHANGE it's motion
a)
balanced
b)
unbalanced
c)
gravitational
d)
electrical
14.
Jupiter has about 317 times more mass than Earth. What can you infer from this fact? 
a)
That Jupiter’s gravitational force is much weaker than on Earth’s gravitational force.
b)
That Jupiter’s gravitational force is much stronger than Earth’s gravitational force.
c)
That Jupiter’s and Earth’s gravitational forces are equal.
d)
Mass has no effect on the gravitational force between two objects
15.

If the net force is equal to zero, the forces acting on the object are

a)

balanced

b)

unbalanced

16.
Balanced forces do not change the objects speed or 
a)
direction
b)
distance 
c)
time
d)
mass
17.
Forces that have a net force of zero ( the object is still).
a)
Balanced force
b)
Unbalanced force
18.
What is the net force?
a)
5000 N right
b)
4000 N right
c)
40 N left
d)
4000 N left
19.
What is the net force in this picture?
a)
50 Newtons to the right
b)
950 Newtons to the right
c)
950 Newtons to the left
d)
50 Newtons to the left
20.
Which one is balanced?
a)
top
b)
bottom
c)
both
21.

In this force diagram, which arrow is representing Friction?

a)

A

b)

B

c)

C

d)

D

22.

How do you know if this object is balanced?

a)

It's not balanced; it's Net Force is 14 N

b)

It is balanced because its Net Force is 0 N.

c)

It's not balanced; it's Net Force is 10 N left and 4 N up.

d)

I don't know how to tell.

23.

What is the net force?

a)

3 N

b)

3 N, right

c)

17 N, right

d)

3 N, left

24.

Two forces act on an object to the right at the same time. What force is required to bring the object into equilibrium?

a)

9 N to the right

b)

9 N to the left

c)

3 N to the left

d)

18 N to the left

25.
What is the net force?
a)
20 N 
b)
0 N 
c)
400 N 
d)
40 N 
26.
You and your dad are moving the couch from one side to another. Your dad pushes with a force of 35 N to the right and you push with a force of 25 N right. What is the net force on the couch?
a)
60 N right
b)
10 N left
c)
60 n right
d)
50 N left
27.

Which example would be a balanced force?

a)

Train moving at a constant speed in the same direction.

b)

A skier going down a hill.

c)

A basketball being passed to a teammate.

d)

An apple falling to the floor.

28.
According to Newton's First Law, an object at rest will tend to do which of the following?
a)
stay at rest
b)
stay in motion
c)
speed up
d)
change in direction
29.
According to Newton's First Law, an object in motion will tend to:
a)
stay at rest
b)
stay in motion
c)
change in direction
d)
slow down
30.
A child pulls on a toy with a force of 25 N to the right. Another child pulls the toy with 15 N to the left. The net force is:
a)
1.7 N to the right
b)
1.7 N to the left
c)
10 N to the right
d)
10 N to the left
31.
A book rests on a table. The normal force points:
a)
Up
b)
Down
c)
Left
d)
Right
32.
The air resistance and weight as shown for the skydiver are balanced. The skydiver is probably:
a)
at rest
b)
moving at constant velocity
c)
accelerating upward
d)
accelerating downward
33.

A contact force is

a)

Touching

b)

Not Touching

34.

A non contact force is

a)

touching

b)

not touching

35.
a)

Contact Force

b)

Non contact Force

36.
a)

Contact Force

b)

Non contact Force

37.

Which of these blocks would result in motion?

a)

Block 1

b)

Block 2

c)

Block 1 and 2

d)

Blocks 2 and 3

38.

What is the net force on this object?

a)

to the right with a strength of 11 Newtons.

b)

to the left with a strength of 7 Newtons.

c)

to the right with a strength of 25 Newtons.

d)

to the left with a strength of 6 Newtons.

39.

How much force is exerted on Cardi B?

a)

12N to the right

b)

11N to the right

c)

10N to the right

d)

11 N to the left

40.

Distance and mass are factors that affect the force of _________.

a)

friction

b)

gravity

c)

balanced

d)

unbalanced

41.

______________ is a force that always acts in the direction opposite of motion.

a)

applied

b)

friction

c)

gravity

d)

normal

42.

Magnetic Force is an example of ____________ force.

a)

contact

b)

non-contact

c)

balanced

d)

unbalanced

43.

An icy road has less __________ than a dry road.

a)

friction

b)

gravity

c)

magnetism

d)

water

44.

Which two characteristics do all forces have?

a)

motion and size

b)

size and direction

c)

direction and speed

d)

balance and direction

45.

What is happening to the speed of the crate in this picture?

a)

speeding up

b)

slowing down

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