Energy

Question 1

Summarise wind power

Answer 1

An electricity generator on top of a tall tower

Question 2

Advantage of wind power

Answer 2

Renewable

Little pollution

Question 3

Disadvantages of wind power

Answer 3

Expensive

Unreliable

Question 4

Summarise wave power

Answer 4

Waves turn a floating generator

Question 5

Adv. of wave power

Answer 5

Renewable

Little pollution

Question 6

Dis. of wave power

Answer 6

Unreliable

Question 7

Summarise Hydroelectric

Answer 7

generators are turned by water running downhill

Question 8

Adv. of hydroelectric

Answer 8

renewable
reliable
little pollution

Question 9

Dis. of hydroelectric

Answer 9

Expensive

Destroys habitats

Question 10

Summarise tidal power

Answer 10

Traps high tide and uses it to turn generators

Question 11

Adv of tidal power

Answer 11

renewable

little pollution

Question 12

Dis of tidal power

Answer 12

Unreliable

expensive

Question 13

Summarise solar cells

Answer 13

flat solid cells that convert solar energy into electrical energy

Question 14

Adv of solar cells

Answer 14

Little pollution

Good for remote places

Question 15

Dis of solar cells

Answer 15

Expensive

Unreliable

Question 16

Summarise solar heating panels

Answer 16

Use’s sun’s energy to heat water directly

Question 17

Adv of solar heating panels

Answer 17

Little pollution

Good for remote places

Question 18

Dis of solar heating panels

Answer 18

Expensive

Unreliable

Question 19

Summarise geothermal

Answer 19

water pumped into hot rocks underground produces steam to turn turbines

Question 20

Adv of geothermal

Answer 20

Reliable
Cost-effective
Little pollution

Question 21

Dis of geothermal

Answer 21

Not many suitable places are available

Doesn’t produce energy on a large scale

Question 22

Laws of conservation of energy

Answer 22

Energy cannot be made or destroyed

Energy can be only transferred or transformed

Question 23

Nuclear powerplant advantage

Answer 23

Reliable

Produces energy on a large scale

Question 24

Summarise nuclear power plant

Answer 24

Nuclear fuel is reacted, producing heat which creates steam.

Question 25

Dis of nuclear fuel

Answer 25

Expensive

Produces dangerous radioactive waste.

Question 26

Summarise energy from fossil fuels

Answer 26

Burning fuels produce heat, which can be used to turn water into steam, to turn turbines

Question 27

Adv of fossil fuels

Answer 27

Reliable
Produces energy on a large scale
Cost-effective

Question 28

Dis of fossil fuels

Answer 28

Produces greenhouse gases and pollution.

Question 29

Name three types of energy that don’t come from the sun, and state its source.

Answer 29

Geothermal- From the heat produced in the Earths core
Nuclear- Elements that make up a small proportion of the earth
Tidal- From the gravitational attraction of the moon

Question 30

How does the sun produce its energy?

Answer 30

Through nuclear fusion- collision, and bonding of hydrogen nuclei to form helium nuclei, and releasing nuclear energy in the process.