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Forces

Total questions: 50

Worksheet time: 45mins

Name
Class
Date
1.

A force is ____.

a)

a push or pull that can cause movement

b)

a magnet

c)

when someone does not work

2.

Gravity is ____.

a)

a force that attracts objects towards each other

b)

a force that moves objects away

c)

a push or pull

3.

This is an example of _____.

a)

magnetism

b)

gravity

c)

work

4.
What does the strength of gravity between two objects depend upon?
a)
Mass & distance
b)
Mass & weight
c)
Gravity & inertia
d)
Inertia & mass
5.
All objects in the universe have a gravitational attraction to each other. 
a)
True
b)
False
6.
What force ultimately slows the roller coaster to a stop?
a)
Applied
b)
Normal
c)
Friction
d)
Magnetic
7.
An _______ force must act on an object for it to CHANGE it's motion
a)
balanced
b)
unbalanced
c)
gravitational
d)
electrical
8.

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

a)

balanced

b)

unbalanced

9.
Balanced forces do not change the objects speed or 
a)
direction
b)
distance 
c)
time
d)
mass
10.
The unit of force is
a)
m/s
b)
m/s^2
c)
newton
d)
kg
11.
What is the net force?
a)
20 N 
b)
0 N 
c)
400 N 
d)
40 N 
12.
What is the net force?
a)
5000 N right
b)
4000 N right
c)
40 N left
d)
4000 N left
13.
What simple machine has a fulcrum and can be used to lift a weight?
a)
Pulley
b)
lever
c)
screw
d)
wedge
14.
What type of simple machine are these people using to move the wheel chair into the school bus?
a)
lever
b)
wedge
c)
inclined plane
d)
pulley
15.
What is the fixed point where a lever turns or pivots?
a)
load
b)
work
c)
fulcrum
d)
screw
16.
A lever is designed to:
a)
reduce the amount of force required to do work
b)
increase the amount of effort required
c)
increase the amount of energy needed to work
17.

Which model will require the least amount of force?

a)

pulley 1

b)

pulley 2

c)

pulley 3

d)

pulley 4

18.

Substance use to reduce friction between moving surfaces.

a)

Solvents

b)

Solute

c)

Lubricants

d)

Grease

19.
If there are two forces going in the same direction how would you find the net force?
a)
Subtract
b)
Add
c)
Neither
d)
Multiply
20.
What is the best definition for mass?
a)
how much space an object takes up
b)
how much matter an object contains
21.
Which has more mass, Earth or the Moon?
a)
Earth
b)
Moon
c)
The same
22.

If an object mass =30 kg on the Earth, what would be it's weight on Earth?

a)

30 N

b)

300 kg

c)

3000N

d)

300 N

23.

If the mass of an object is 1000 kg on Earth, what is it's mass on the moon?

a)

less than 1000 kg

b)

more than 1000 kg

c)

1000kg

24.

weight is measured in...

a)

pounds (lb)

b)

grams (g)

c)

newtons (N)

d)

kilograms (kg)

25.

What is the name of this tool?

a)

spring balance / force meter

b)

scale

c)

measuring cylinder

d)

thermometer

26.

What is weight?

a)

the pulling force of gravity on an object

b)

the time it takes to get on a ride

c)

the amount of matter in an object

d)

the size of an object

27.

What do you use to measure the weight of an object?

a)
b)
c)
d)
28.

My weight on the Earth's surface is 500 N. What is my mass?

a)

500 kg

b)

500 g

c)

50 kg

d)

50 g

29.
WHAT ARE THE 3 MAIN PARTS OF A LEVER?
a)
FOOT, EFFORT, REPORT
b)
FULCRUM, STRUCTURE, EFFORT
c)
FULCRUM, EFFORT, LOAD
30.

Which of these best describes friction?

a)

A rubbing force.

b)

Something that is slippery.

c)

Gravity.

d)

Movement across a smooth surface.

31.
Rougher surfaces have ...
a)
greater friction
b)
less friction
c)
the same level of friction
32.
A puck slides along an icy surface. What makes it slow down?
a)
It runs out of push
b)
It rubs against the ice
c)
It runs out of electricity
33.
Friction is a force that acts in an ___________ direction of movement.
a)
similar
b)
opposite
c)
parallel
d)
west
34.
The amount of friction depends on the weight of the objects pressing together.
a)
True
b)
False
35.
How can friction be reduced?
a)
reduce the force acting between the 2 surfaces
b)
reduce the roughness of the 2 surfaces coming in contact
c)
use wax, grease or oil
d)
all of the above are ways of reducing friction
36.
A type of friction that occurs when air pushes against a moving object causing it to decelerate.
a)
surface area
b)
air resistance
c)
velocity
d)
gravity 
37.
How would the absence of friction affect a marble traveling on a long, straight path?
a)
The marble’s speed would decrease.
b)
The marble’s speed would increase.
c)
The marble would stop immediately. 
d)
The marble would remain at constant speed.
38.

What can still be seen from Isaac Newton's old bedroom window?

a)

The place he went to school

b)

Albert Einstein's house

c)

The letter he wrote to his family

d)

The apple tree that inspired Newton’s ideas about gravity

39.

In which country was Issac Newton born?

a)

Russia

b)

England

c)

France

d)

Germany

e)

Turkey

40.

What is the full name of Issac Newton?

a)

Sir Issac Newton

b)

William Newton

c)

Issaquah Newton

d)

Issac Christie Newton

41.

Which planet has the strongest gravity?

a)

Earth

b)

Jupiter

c)

Mars

42.

What is Gravity?

a)

A force that makes us float

b)

An invisible force that keeps us on the ground

c)

An invisible force that rocks us

43.

What is Gravity?

a)

A force that makes us float

b)

An invisible force that keeps us on the ground

c)

An invisible force that rocks us

44.

Which part of the lever supplies the force to move something?

a)

load

b)

effort

c)

fulcrum

45.

Which part of the lever is the part you are trying to move?

a)

fulcrum

b)

load

c)

effort

46.

Which one is the most easier way to lift a load?

a)

Fulcrum near to the load

b)

Fulcrum further from the load

c)

Load is near to the force

47.

Which is the best AFL team?

a)

North Melbourne

b)

Hawthorn

c)

Essendon

d)

West Coast

48.

A contact force is from

a)

objects physically touching

b)

far apart objects

c)

not touching object

d)

always a pull

49.

A non-contact force is between

a)

two objects that aren't touching

b)

two objects that are touching

c)

the ground and wheels

d)

you and me

50.

The three examples pictured are of

a)

Non-contact Forces

b)

Contact Forces

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