1. S3 Physics -
Energy 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21

2. Example: fossil fuels (other examples exist)
1. What does non – renewable mean? Give an example of a non renewable energy source.
answer
Cannot be replaced
Example: fossil fuels (other examples exist)

3. Example: wind / solar/ hydro/ geothermal.
2. What does renewable mean? Give an example of a renewable energy source.
answer
Can be replaced
Example: wind / solar/ hydro/ geothermal.
(other examples exist)

4. Increased levels of carbon dioxide. Pollution from acid rain.
3. Give some examples of problems associated with non renewable energy sources.
answer
Examples:
They will run out.
Increased levels of carbon dioxide.
Pollution from acid rain.

5. 4. Name some possible environmental effects of nuclear power.
answer
Example: Dealing with radioactive waste.

6. 5. Which element is used as a fuel in a nuclear power station?
answer
Uranium

7. 6. Name the process which occurs in a reactor chamber?
answer
Nuclear fission

8. 7. Name this process?
answer
Chain reaction

9. 8. Name a fossil fuel?
answer
Coal, oil and gas.

10. A fuel made over millions of years from fossilised plants (coal)
9. What is a fossil fuel?
answer
A fuel made over millions of years from fossilised plants (coal)
and sea creatures (oil and gas).

11. How are fossil fuels used to generate energy?
answer
They are burned to release heat energy.
This is used to boil water.
The steam drives turbines which produce electricity in a generator

12. 11. Give an environmental impact of wind turbines?
answer
e.g.
Scar on landscape
Noise pollution
Loss of natural habitat for some animals

13. 12. How does a windfarm produce energy?
answer
Wind turns blades of turbine.
Turbines generate electrical energy.

14. 13. Give some benefits from wind farms.
answer
Renewable energy source.
No production of pollutant gases such as carbon dioxide.

15. 14. What do you call energy from the sun?
answer
Solar energy

16. 15. Give an example of a benefit from solar energy?
answer
Renewable energy source
Cheap to produce

17. 16. Give a disadvantage of solar energy?
answer
Intensity of sunlight varies

18. 17. What do you call electrical energy made using water flowing down a hill?
answer
Hydroelectric

19. 18. Give an advantage of hydroelectric power?
answer
Renewable source
Does not produce pollutant gases such as carbon dioxide.

20. Chemical  heat  kinetic  electrical energy energy energy energy
19. What energy changes take place in a thermal power station (fossil fuel)?
answer
Chemical  heat  kinetic  electrical energy energy energy energy

21. 20. What energy changes take place in a hydroelectric power station?
answer
Potential  Kinetic  Electric

22. 21. What energy changes take place in a nuclear power station?
answer
Nuclear  heat  Kinetic  electrical energy energy energy energy