Quiz about Year 7-Phantastic Physics

Question 1

These forces are...

Accepted Answer

Unbalanced

Answer

Balanced

Question 2

These forces are...

Accepted Answer

Balanced

Answer

Unbalanced

Question 3

The net force is...

Accepted Answer

0 N

Answer

50 N

Answer

100 N

Answer

2500 N

Question 4

Which of the following statements is true?

Accepted Answer

Unbalanced forces cause a change in motion.

Answer

Balanced forces cause a change in motion.

Answer

Forces do not effect the change in motion.

Question 5

How will this object move?

Accepted Answer

It will move to the right.

Answer

It won't move.

Answer

It will move to the left.

Answer

It will move up.

Question 6

What is the net force?

Accepted Answer

40 N right

Answer

40 N left

Answer

0 N Balalnced

Answer

400 N right

Question 7

Calculate the Net Force.

Accepted Answer

60N, Left

Answer

40N, Right

Answer

0N

Answer

60N, Right

Question 8

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?

Accepted Answer

60 N right

Answer

10 N left

Answer

60 n right

Answer

50 N left

Question 9

What is true about this picture?

Accepted Answer

The net force is 3 N

Answer

the forces are balanced

Answer

the net force is 10N

Answer

The net force is 7N

Question 10

Which of the following is an example of an unbalanced force?

Accepted Answer

Option A is correct

Answer

B.

Answer

C.

Answer

D.

Question 11

Which of the following is an example of a balanced force?

Accepted Answer

A boy standing still.

Answer

An aeroplane taking off.

Answer

Kicking a football.

Answer

A car slowing down.

Question 12

What is the unit for force?

Accepted Answer

Newtons (N)

Answer

Joules (J)

Answer

seconds (s)

Answer

meters (m)

Question 13

Which of the following could be an example of an unbalanced force?

Accepted Answer

A baseball that has been thrown to home plate

Answer

A plate sitting on a dining table.

Answer

Earth orbiting the Sun

Answer

A ball at the top of a hill that is not moving

Question 14

An airplane is travelling North through the sky at a constant speed when turbulence causes it to take a different route, changing its direction. Explain the forces at work on this plane.

Accepted Answer

Unbalanced, because the speed is constant and there is a change in direction

Answer

Unbalanced, because the plane is moving forward, not backwards

Answer

Balanced, because the plane is not falling to a lower altitude

Answer

Unbalanced, because the plane is in motion

Question 15

The moon orbiting the Earth at a constant speed.

Accepted Answer

Balanced Force

Answer

Unbalanced Force

Question 16

Are forces balanced or unbalanced when a marble rolls down a ramp?

Accepted Answer

Unbalanced

Answer

Balanced

Question 17

What is the force that causes objects to fall to Earth?

Accepted Answer

Gravity

Answer

Air resistance

Answer

Water resistance

Answer

Pressure

Question 18

In which direction does gravity act?

Accepted Answer

Towards the centre of the Earth

Answer

Downwards

Answer

Upwards

Answer

In all directions

Question 19

What type of force is air resistance?

Accepted Answer

Contact

Answer

Non-contact

Question 20

When two objects rub together, what force do they produce

Accepted Answer

Friction

Answer

Gravity

Answer

Air resistance

Answer

Water resistance

Question 21

In this force diagram, which arrow is representing Friction?

Accepted Answer

B

Answer

A

Answer

C

Answer

D

Question 22

In this force diagram, which arrow is representing the Normal Force?

Accepted Answer

C

Answer

A

Answer

B

Answer

D

Question 23

When placed at equal distances apart, the greatest gravitational attraction will be between two

Accepted Answer

school buses

Answer

skateboards

Answer

bowling balls

Question 24

Which is needed to determine the amount of gravitational force between two objects?

Accepted Answer

distance and mass

Answer

weight and time

Answer

area and weight

Question 25

The gravitational force exerted by an object depends on its

Accepted Answer

mass

Answer

volume

Answer

weight

Question 26

If a feather and a hammer are dropped at the same time on the moon, where there is no atmosphere, which one will hit the ground first?

Accepted Answer

both will hit at the same time

Answer

Neither, there is no gravity on the moon.

Answer

hammer because it has more mass

Answer

feather because it has less mass

Question 27

Mass is a measurement of

Accepted Answer

how much matter is present in an object

Answer

how much weight is present in an object

Answer

the amount a spring is compressed on a scale

Answer

none of the answers are correct

Question 28

The SI units of force are measured in

Accepted Answer

Newtons

Answer

Grams

Answer

Pounds

Answer

Kilograms

Question 29

Gravity on moon is less than the gravity on earth because

Accepted Answer

a. moon's mass is less

Answer

b. moon's mass is more

Answer

c. moon's mass is equal to Earth

Answer

d. moon has no mass

Question 30

Complete the following statement: The farther away two planets are the _______ the gravitational force between them.

Accepted Answer

less

Answer

more

Answer

same

Answer

dosen't matter

Question 31

What is meant by fossil fuels?

Accepted Answer

Fuels that are derived from fossils

Answer

Fuels that are derived from old people

Answer

Fuels that are derived from using plant material

Answer

Fuels that are derived from the decomposition of faeces

Question 32

Most forms of electrical generation rely on a turbine. Which form doesn't?

Accepted Answer

Solar

Answer

Tidal

Answer

Hydro

Answer

Wind

Question 33

Examine the diagram of a fossil fuel power plant. What component changes kinetic energy to electrical energy?

Accepted Answer

generator

Answer

boiler

Answer

condenser

Answer

turbine

Question 34

Which of the following electrical generators does NOT involving spinning?

Accepted Answer

Solar panels

Answer

Coal

Answer

Nuclear

Answer

Tidal

Question 35

How much of our energy is produced from the Sun

Accepted Answer

All of our energy

Answer

All the solar energy which is not a big percentage

Answer

Most of the energy in living things

Answer

10 million gigawatts per day

Question 36

Which type of alternative energy source is shown in this picture?

Accepted Answer

Hydroelectric

Answer

Wind

Answer

Solar

Answer

Geothermal

Question 37

Which of the following is an example of friction that is helpful?

Accepted Answer

All are examples that are helpful

Answer

Brakes used on a bike

Answer

Tires from a car on the road

Answer

Tread on the bottom of your shoes

Question 38

How can friction be reduced?

Accepted Answer

all of the above are ways of reducing friction

Answer

reduce the force acting between the 2 surfaces

Answer

reduce the roughness of the 2 surfaces coming in contact

Answer

use wax, grease or oil

Question 39

Which of the following is an example of friction that is harmful?

Accepted Answer

Engine parts wearing out

Answer

Pencil marking on paper

Answer

sand placed on ice in the winter

Answer

Using an eraser to erase marks

Question 40

What form of energy do you see in this picture?

Accepted Answer

All of the above

Answer

Light

Answer

Sound

Answer

Mechanical

Question 41

Which picture is NOT an example of Chemical PE?

Accepted Answer

Option D is correct

Answer

A.

Answer

B.

Answer

C.

Question 42

Which piece of evidence BEST represents Chemical PE being released?

Accepted Answer

water temperature increasing

Answer

a rubber band flung a far distance

Answer

an apple falling from a tree

Answer

2 magnets repelling

Question 43

What is the formula for Gravitational Potential Energy?

Accepted Answer

PE = mgh

Answer

KE = 1/2mv²

Answer

W = Fd

Answer

P = W/t

Question 44

A child has a mass of 30 Kg on Earth. If the gravity on Moon is one sixth that of the Earth what is the mass of the child on Moon?

Accepted Answer

30 Kg

Answer

180 Kg

Answer

5 Kg

Answer

0 Kg

Question 45

The scientific unit of weight is

Accepted Answer

Newtons

Answer

kilograms

Answer

joules

Answer

kg/m/s

Question 46

The scientific unit for mass is

Accepted Answer

Kg

Answer

Newtons

Answer

grams

Answer

Joules

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