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7P Forces

Total questions: 25

Worksheet time: 13mins

Name
Class
Date
1.
What force holds the planets in motion around the sun?
a)
Magnetic
b)
Electrical
c)
Gravitational
d)
Air Resistance
2.
What does the strength of gravity between two objects depend upon?
a)
Mass & distance
b)
Mass & weight
c)
Gravity & inertia
d)
Inertia & mass
3.

What force ultimately slows the roller coaster to a stop?

a)

Weight

b)

Normal

c)

Friction

d)

Magnetic

4.
An _______ force must act on an object for it to CHANGE it's motion
a)
balanced
b)
unbalanced
c)
gravitational
d)
electrical
5.

What is the net / resultant force?

a)

5000 N right

b)

4000 N right

c)

40 N left

d)

4000 N left

6.

What is the net / resultant 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

7.
What is it called when the force of gravity is acting on an object?
a)
Weight
b)
Sliding Friction
c)
Momentum
d)
Projectile Motion
8.

In this force diagram, which arrow is representing Friction?

a)

A

b)

B

c)

C

d)

D

9.

According to this force diagram, is this object balanced or unbalanced?

a)

Balanced

b)

Unbalanced

c)

I don't know

10.

What is the unit of force?

a)

Newton, N

b)

Centimetre, cm

c)

Kilometre, km

d)

kilogram, kg

11.
In which direction does gravity act?
a)
Downwards
b)
Upwards
c)
In all directions
d)
Towards the centre of the Earth
12.
Which of these uses friction?
a)
A parachute
b)
A ball falling through the sky
c)
Brakes on a bike
d)
A wind turbine
13.

Which of these is not a force?

a)

mass

b)

drag

c)

upthrust

d)

reaction

14.

Which of these is a force?

a)

mass

b)

weight

c)

pressure

d)

density

15.

What is 500 g as a weight?

a)

500 g

b)

5000 N

c)

5 N

d)

0.5 kg

16.

What is 0.2 N as a mass

a)

2 kg

b)

20g

c)

2 N

d)

0.02 N

17.

When a parachutist jumps out of a plane and reaches terminal velocity, he...

a)

is travelling at a constant speed

b)

is going to die

c)

is accelerating

d)

must open his parachute

18.

A boat is floating in the sea. Which statement is correct?

a)

Upthrust = weight

b)

There is no friction with the water

c)

The uphrust is more than the weight

d)

The boat must be made of wood

19.

If the average CE candidate has a mass of 60 kg, what is his weight on the moon?

a)

100 N

b)

600 N

c)

0N

d)

60 kg

20.

If the average CE candidate has a mass of 60 kg, what is his weight in space?

a)

600 N

b)

100 N

c)

0 N

d)

60 kg

21.

If the average CE candidate has a mass of 60 kg, what is his mass on the moon?

a)

100 N

b)

600 N

c)

60 kg

d)

0 N

22.

If the average CE candidate has a mass of 60 kg, what is his mass in space?

a)

100 N

b)

600 N

c)

0 N

d)

60 kg

23.

What can balanced force NOT do?

a)

make an object start moving

b)

keep an object stationary

c)

keep an object moving at steady speeds

d)

keep an object moving in the same direction

24.

What is the unit used to measure friction?

a)

weight

b)

meter

c)

Newton

d)

kilogram

25.
How does friction affect speed?
a)
more friction decreases speed
b)
more friction increases speed
c)
less friction decreases speed
d)
less friction doesn't affect speed