P3.1.6 - Your Planet (Generating Electricity)

Question 1

Is nuclear fusion a renewable source of energy?

Answer 1

Yes

Question 2

List some renewable sources of electricity generation.

Answer 2

1. Wind farms
2. Solar energy
3. Tidal power (from waves)
4. Geothermal
5. Hydroelectric
6. Biofuels

Question 3

Does nuclear fusion release CO2 when it is being used to generate electricity?

Answer 3

No

Question 4

Predictions about how electricity demand may increase in the future can be made using…

Answer 4

computer models

Question 5

Describe what happens when energy is produced for nuclear fusion power.

Answer 5

Hydrogen atoms are joined together to produce Helium and release energy.

Question 6

Give an advantage and disdvantage of using wind turbines to generate electricity.

Answer 6

Advantage: they do not release CO₂ when in use.

Disdvantage: CO₂ is released when they are made.

Question 7

List some of the consequences of an increase in demand for electricity.

Answer 7

1. Climate change (due to burning fossil fuels)
2. Pollution of air and water
3. Polar ice caps melting
4. Loss of habitats
5. Sea levels rising
6. Droughts (water shortages)

Question 8

Give an advantage and disadvantage of using biofules to generate electricity.

Answer 8

Advantage: it is renewable - crops can be regrown to produce biofuels

Disadvantge: they release CO₂ when they are burned.

Question 9

What could cause demand for electricity to increase?

Answer 9

1. People using many more electronic devices.
2. The population of the planet is increasing.
3. Countries that did not have a bid demand for electricity are developing and so demand more now.