Energy

Question 0

Unit of energy

Answer 0

Energy is measured in units called joules

Question 1

What is energy

Answer 1

The ability to do work

Question 2

Potential energy

Answer 2

Stored energy waiting to do work e.g. Spring or elastic band

Question 3

Kinetic

Answer 3

Movement energy e.g. Car or plane

Question 4

Heat energy

Answer 4

This is energy that causes things to move, hot air causes a hot air balloon to rise and steam causes a train to move

Question 5

Light energy

Answer 5

Light can move things crooked radiometer or in a solar powered calculator, plants use light to make food

Question 6

Sound energy

Answer 6

If you put your head near a loudspeaker you can feel that air is being moved by sound energy

Question 7

Electrical 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 is a type of energy stored in fuel such as coal and oil it is also stored in the food we eat and in batteries

Question 9

Nuclear energy

Answer 9

Is the energy that is stored in the nucleus of atoms the energy that come off the sun

Question 10

Law if conservation of energy

Answer 10

Energy cannot be created or destroyed It can only change from one sort to another

Question 11

Circuits

Answer 11

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

Question 12

Renewable energy

Answer 12

Renewable energy is constantly being replaced by nature

Question 13

Renewable energy sources

Answer 13

Solar energy
Hydro electric
Wind energy,
Wave energy,
Biomass energy (use plants to make fuel),
Geothermal energy,(metal under your house heats up)

Question 14

Advantages of renewable energy

Answer 14

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

Question 15

Disadvantages of renewable energy

Answer 15

They are expensive to develop and set up

More research needs to be done into how make them good sources of energy

Question 16

Non renewable energy

Answer 16

Cannot be replaced and will run out

Question 17

Non renewable energy sources

Answer 17

(Fossil fuels)
Oil
Coal
Gas
Turf

Question 18

Non renewable energy sources

Answer 18

None new able energy sources cannot be replaced and will run out

Question 19

Fossil fuels

Answer 19

Oil, coal ,natural ,gas ,turf,

Question 20

Disadvantage of fossil fuels

Answer 20

They cause pollution and damage to the atmosphere

Question 21

The sun as a source of all our energy

Answer 21

Heats the ocean and the air creating wild currents. It allows plants to make food

Question 22

Nuclear energy

Answer 22

When the nucleus of an atom is split large amounts of energy are released from it

Question 23

Advantages of nuclear energy

Answer 23

Nuclear radiation is used to kill cancer cells
Sterilise food
Produce electricity
It will not run out like fossil fuels

Question 24

Disadvantages of nuclear energy

Answer 24

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