Energy

Question 0

Unit of energy

Answer 0

Joules

Question 1

Energy

Answer 1

Is the ability to do work

Question 2

Potential energy

Answer 2

This is stored energy that is just waiting to do work (coiled spring)

Question 3

Kinetic energy

Answer 3

The energy that moving things have (car,windmill)

Question 4

Heat energy

Answer 4

Heat is energy because it can cause things to move (hot air ballon)

Question 5

Light energy

Answer 5

Light can move things or power things (solar powered calculator)

Question 6

Sound energy

Answer 6

Sound energy can move air (loudspeaker)

Question 7

Electric energy

Answer 7

This energy can make things like extractor fans move. It is the flow of electrons around a circuit

Question 8

Chemical energy

Answer 8

This type of energy is stored in fuels such as oil and coal

Question 9

Nuclear energy

Answer 9

This energy is stored in the nucleus of atoms, the energy that comes from the sun

Question 10

Laws of conservation of energy

Answer 10

Energy can not be created or destroyed it can only be changed

Question 11

Circuit

Answer 11

A circuit is made up of a battery, some wires and different types of equipment and can be used to observe energy conversions

Question 12

Renewable energy

Answer 12

Constantly being replaced by nature

Question 13

Renewable energy sources

Answer 13

Solar energy
Hydro Electric energy 
Wind energy 
Wave energy 
Biomass energy 
Geothermal energy

Question 14

Advantages of renewable energy

Answer 14

It does not cause pollution
It will not run out
They are fairly safe to use

Question 15

Disadvantages of renewable energy

Answer 15

They are expensive to make and setup

They need more research to be done for them to make a good source of energy

Question 16

Non renewable energy

Answer 16

They cannot be replaced and run out

Question 17

Non renewable energy

Answer 17

Gas 
Oil
Fossil fuels
Coal
Turf
Petrol

Question 18

Fossil fuels

Answer 18

They are formed over millions of years from dead plants and animals.
Once they are burned they are gone.
They will only last 200-300 years at the present day usage.

Question 19

Sun as a source

Answer 19

The sun allows plants to make food which stored a chemical energy used by every single animal on earth.
The sun heats up the oceans and air creating wind, currents, waves, rivers.
The heat of the sun is used to heat water .
The light energy from the sun can be changed to electrical energy

Question 20

Advantages of nuclear power

Answer 20

Kills cancer
Sterilise food
Produce electricity
It will not run out like fossil fuels

Question 21

Disadvantages of nuclear ar energy

Answer 21

Waste products are harmful
Waste products last a very long time
If the nuclear energy gets out of control huge explosions may happen