Energy year 7

Question 1

Name 4 renewable resources.

Answer 1

.Solar
.Wind
.Hydroelectric
.Biofuel

Question 2

Name 8 energy stores ;)

Answer 2

Thermal
Kinetic
Nuclear
Magnetic
Chemical
Gravitational potential
Elastic
Electrical

Question 3

Where does conduction happen?

Answer 3

Solids!!

Question 4

Where does convection happen?

Answer 4

Liquids and gases :0

Question 5

What is the unit of energy?

Answer 5

JOULES

Question 6

Name 4 non-renewable resources

Answer 6

.Coal
.Oil
.Gas
.Nuclear

Question 7

How do calculate the efficiency of an energy transfer?

Answer 7

Useful energy out divided by total energy….

Question 8

Where does radiation happen?

Answer 8

A vacuum

Question 9

What source absorbs heat in infra-red radiation?

Answer 9

Black surfaces

Question 10

Which surface reflects light?

White or black surfaces?

Answer 10

White

Question 11

Which surface emits heat first?

Answer 11

Black

Question 12

Why are fossil fuels called this?

Answer 12

Because they are dug up from the ground like fossils (like coal)

Question 13

To make water evaporate you need to take energy out/in

Answer 13

Take energy out :(

Question 14

What does finite energy

Answer 14

Energy that will eventually run out