Quiz about Year 8 Science - Energy - Test Revision

Question 1

True or false: Energy makes things happen.

Accepted Answer

True

Answer

False

Question 2

What types of energy are represented in the image? Focus on the most important one!

Accepted Answer

Nuclear

Answer

Sound

Answer

Elastic potential

Answer

Gravitational potential

Question 3

What types of energy are represented in the image? Focus on the most important one!

Accepted Answer

Sound

Answer

Elastic potential

Answer

Nuclear

Answer

Gravitational potential

Question 4

What types of energy are represented in the image? Focus on the most important one!

Accepted Answer

Elastic potential

Answer

Sound

Answer

Nuclear

Answer

Gravitational potential

Question 5

What types of energy are represented in the image? Focus on the most important one!

Accepted Answer

Gravitational potential

Answer

Sound

Answer

Elastic potential

Answer

Nuclear

Question 6

What types of energy are represented in the image? Focus on the most important one!

Accepted Answer

Light

Answer

Heat

Answer

Electrical

Answer

Chemical

Question 7

What types of energy are represented in the image? Focus on the most important one!

Accepted Answer

Heat

Answer

Light

Answer

Electrical

Answer

Chemical

Question 8

What types of energy are represented in the image? Focus on the most important one!

Accepted Answer

Electrical

Answer

Light

Answer

Heat

Answer

Chemical

Question 9

What types of energy are represented in the image? Focus on the most important one!

Accepted Answer

Kinetic

Answer

Light

Answer

Electrical

Answer

Elastic potential

Question 10

What types of energy are represented in the image? Focus on the most important one!

Accepted Answer

Chemical

Answer

Kinetic

Answer

Electrical

Answer

Elastic potential

Question 11

Which of the types of energy cannot be classified as potential energy?

Accepted Answer

Kinetic

Answer

Chemical

Answer

Gravitational

Answer

Elastic

Question 12

Which of the types of energy cannot be classified as a type of kinetic energy?

Accepted Answer

Elastic

Answer

Light

Answer

Sound

Answer

Electrical

Question 13

What is another word for 'stored' energy?

Accepted Answer

Potential

Answer

Kinetic

Question 14

The input energy here is...

Accepted Answer

Electrical

Answer

Heat

Answer

Sound

Answer

Light

Question 15

The main output energy here is...

Accepted Answer

Heat

Answer

Sound

Answer

Light

Answer

Electrical

Question 16

The input energy here is...

Accepted Answer

Chemical

Answer

Heat

Answer

Sound

Answer

Electrical

Question 17

The main output energy here is...

Accepted Answer

Kinetic

Answer

Heat

Answer

Sound

Answer

Light

Question 18

Energy is wasted in the form of ...

Accepted Answer

Heat

Accepted Answer

Sound

Answer

Light

Answer

Kinetic

Question 19

How much energy is provided at the start?

Accepted Answer

100 J

Answer

10 J

Answer

90 J

Answer

90%

Question 20

How much energy is wasted?

Accepted Answer

90 J

Answer

10 J

Answer

100 J

Answer

90%

Question 21

How much energy is useful?

Accepted Answer

10 J

Answer

100 J

Answer

90 J

Answer

90%

Question 22

What is the energy efficiency?

Accepted Answer

10%

Answer

10 J

Answer

90 J

Answer

90%

Question 23

True or false: Energy is the ability to do work.

Accepted Answer

True

Answer

False

Question 24

Which device is more energy efficient?

Accepted Answer

The one on the left.

Answer

The one on the right.

Question 25

Which object is not suitable to store elastic potential energy?

Accepted Answer

Option C is correct

Answer

A.

Answer

B.

Answer

D.

Question 26

Which object has the most gravitational potential energy?

Accepted Answer

Option C is correct

Answer

A.

Answer

B.

Answer

D.

Question 27

Which object has the least gravitational potential energy?

Accepted Answer

Option D is correct

Answer

A.

Answer

B.

Answer

C.

Question 28

dark colored surfaces _________ radiation

Accepted Answer

absorb

Answer

reflect

Question 29

What type of heat transfer takes place when you touch a warm mug of hot chocolate?

Accepted Answer

Conduction

Answer

Radiation

Answer

Convection

Answer

None of the above

Question 30

Conduction requires

Accepted Answer

direct contact

Answer

Electricity

Answer

the electromagnetic spectrum and particles

Answer

air or water flow

Question 31

Heat transfer always moves ...

Accepted Answer

hot to cold

Answer

cold to hot

Answer

east to west

Answer

north to south

Question 32

If you walk barefoot on hot asphalt, energy is transferred by which process?

Accepted Answer

Conduction

Answer

Convection

Answer

Radiation

Answer

Reflection

Question 33

Energy is transferred as heat between two objects of ___________ temperatures.

Accepted Answer

differing

Answer

same

Question 34

Which direction is heat flowing in the picture?

Accepted Answer

from the hand to the ice

Answer

from the ice to the hand

Answer

heat is not being transferred

Answer

there is no way to tell

Question 35

The transfer of heat energy by direct contact, or touch, is __________________?

Accepted Answer

conduction

Answer

radiation

Answer

convection

Answer

greenhouse effect

Question 36

Where do we see conduction in a pot of boiling water on the stove?

Accepted Answer

The water heats up by touching the hot, metal pot.

Answer

The steam from the hot water rises out of the pot.

Answer

The heat from the fire can be felt on all sides.

Question 37

When air is heated, what happens to its mass?

Accepted Answer

remains the same

Answer

increases

Answer

decreases

Question 38

When air is heated, its volume ____________.

Accepted Answer

increases

Answer

decreases

Answer

remains the same

Question 39

When air is heated, its density ___________.

Accepted Answer

decreases

Answer

increases

Answer

remains the same

Question 40

Convection can take place in ____________.

Accepted Answer

liguids and gases only.

Answer

solids only.

Answer

liquids only.

Answer

solids, liquids and gases.

Question 41

Which of the following is an application of convection?

Accepted Answer

The sea breeze that blows from sea to land.

Answer

The movement of heat through a metal pan to the food.

Answer

The use of ice box to keep drinks cool.

Answer

The use of wool blanket to keep the body warm.

Question 42

A group of friends gather around a fire to stay warm. This is an example of ________.

Accepted Answer

radiation

Answer

conduction

Answer

convection

Question 43

You get sunburned due to __________ from the sun.

Accepted Answer

radiation

Answer

conduction

Answer

convection

Question 44

The kind of heat transfer that travels through space in electromagnetic waves is ______________________.

Accepted Answer

radiation

Answer

convection

Answer

conduction

Question 45

A huge rock at the state park gets so hot during the day because of ________.

Accepted Answer

radiation

Answer

conduction

Answer

convection

Question 46

2. WHICH OF THE FOLLOWING IS A SOURCE OF LIGHT?

Accepted Answer

fire

Answer

the moon

Answer

our eyes

Answer

a mirror

Question 47

Why is light able to travel through space when sound cannot?

Accepted Answer

Light is able to travel through a vacuum.

Answer

Light is able to be reflected by objects.

Answer

Light is able to travel through gas.

Answer

Light is able to travel through translucent objects.

Question 48

When all of the colors of light are absorbed, we see the color _______.

Accepted Answer

black

Answer

white

Answer

green

Answer

red

Question 49

Light travels

Accepted Answer

in a straight line

Answer

around corners

Question 50

Light bounces when it is

Accepted Answer

reflected

Answer

absorbed

Answer

refracted

Question 51

Light bends when it is

Accepted Answer

refracted

Answer

reflected

Answer

absorbed

Question 52

Light is a form of

Accepted Answer

Energy

Answer

Matter

Answer

Reflection

Answer

Force

Question 53

A straw sitting in a glass of water looks broken because light travels more slowly through the water than air. This is an example of ____________.

Accepted Answer

Refraction

Answer

Reflection

Answer

Absorbing

Answer

Transmitting

Question 54

This is an example of?

Accepted Answer

Reflection

Answer

fog

Answer

Refraction

Answer

translucent

Question 55

Cardboard, wood, and books are some examples of ________ objects.

Accepted Answer

opaque

Answer

translucent

Answer

transparent

Answer

reflection

Question 56

When white light passes through a prism, it is broken apart into

Accepted Answer

rainbow colors

Answer

water

Answer

air

Answer

a straw

Question 57

True or false: as you move along the spectrum, radio to gamma waves, the wavelengths decrease in size (get smaller)

Accepted Answer

true

Answer

false

Question 58

A wave with a large wavelength will have a ______ frequency and _____ energy

Accepted Answer

low, low

Answer

high, low

Answer

high, high

Answer

low, high

Question 59

Which has the LONGEST wavelength and, therefore, the lowest frequency/energy

Accepted Answer

Radio Waves

Answer

Gamma Rays

Answer

Visible Light

Answer

Infrared rays

Question 60

Which section of the spectrum is the ONLY one we can see?

Accepted Answer

Visible Light

Answer

X-rays

Answer

Gamma Rays

Answer

Ultraviolet Rays

Question 61

How are electromagnetic waves different from other waves?

Accepted Answer

They can travel through empty space

Answer

They have very short wavelengths

Answer

They transmit energy instead of matter

Answer

They can change direction by reflection

Question 62

The distance between two crests or two troughs of a wave is called:

Accepted Answer

wavelength

Answer

frequency

Answer

amplitud

Answer

hertz

Question 63

A rapid back and forth movement?

Accepted Answer

Vibrate

Answer

Echo

Answer

Pitch

Answer

Amplitude

Question 64

Energy that you can hear?

Accepted Answer

Sound

Answer

Light

Answer

Heat

Answer

pitch

Year 8 Science - Energy - Test Revision

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