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Forces Review (Year 7)

Total questions: 25

Worksheet time: 18mins

Name
Class
Date
1.
Calculate the net force of the object in the image shown.
a)
20N
b)
35N
c)
5N
d)
25N
2.

What is the net force?

a)

3 N

b)

3 N, right

c)

17 N, right

d)

3 N, left

3.

A ____________ is a push or a pull on an object.

a)

friction

b)

force

c)

magnet

d)

gravity

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.

Forces that have a net force of zero Newtons

a)

Balanced force

b)

Unbalanced force

6.
What will cause an object to move?
a)
Applied forces
b)
Balanced forces
c)
Unbalanced forces
7.
With unbalanced forces, the object will move in the direction of the _______ force.
a)
larger 
b)
smaller 
c)
equal 
8.
A force is a push or pull measured in what units? 
a)
Meters per second, squared
b)
Kilograms 
c)
Newtons 
9.
When the vectors (arrows) point in the same direction what function do you use? 
a)
Dividing 
b)
Multiplying 
c)
Subtracting 
d)
Adding 
10.
If an object is not moving the forces acting upon it are _____________
a)
unbalanced
b)
weak
c)
balanced
d)
Hulk Smash!
11.
What is force?
a)
A force is a push or a pull upon an object resulting from the object's interaction with another object.
b)
The rate at which an object changes its velocity. 
c)
It is the amount of space between two points.
d)
It is Superman's power
12.

A force is a _____

a)

push

b)

pull

c)

Both push and pull

d)

Object

13.

When we throw anything in air it always falls down because of _____

a)

Friction

b)

Gravity

c)

Solid

d)

motion

14.

Which force acts backwards and prevent us form slipping on a wet floor?

a)

Gravitational force

b)

Magnetic force

c)

Frictional force

d)

Electrostatic force

15.

In what condition the magnetic poles attract each other?

a)

South-South

b)

North-North

c)

North-South

d)

All of the above

16.

When you rub your hand heat energy is generated because of _____

a)

Magnetism

b)

Muscular force

c)

Electrostatic force

d)

Friction

17.

What force ultimately slows the roller coaster to a stop?

a)

Applied

b)

Normal

c)

Friction

d)

Gravitational

18.
What force holds the planets in motion around the sun?
a)
Magnetic
b)
Electrical
c)
Gravitational
d)
Air Resistance
19.
Friction is a force that acts in an ___________ direction of movement.
a)
similar
b)
opposite
c)
parallel
d)
west
20.
The amount of friction depends on the weight of the objects pressing together.
a)
True
b)
False
21.
Rougher surfaces have ...
a)
greater friction
b)
less friction
c)
the same level of friction
22.

Ways to reduce frictional force

a)

use lubricants

b)

use grease

c)

use magnesium carbonate chalk powder

d)

use rollers and ball bearings

23.

The gravitational force exerted by an object depends on its

a)

volume

b)

mass

c)

weight

24.
Mass is a measurement of 
a)
how much matter is present in an object
b)
how much weight is present in an object
c)
the amount a spring is compressed on a scale
d)
none of the answers are correct
25.

as the mass of an object increases, the pull of gravity...

a)

Increases

b)

Decreases

c)

Stays the same

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