KS4 Energy - Renewable Energy

1. KS4 Energy - Renewable Energy

2. Energy resources Wind Sun Solar Sun Wave Sun Tidal Moon Hydroelectric Sun Biomass Sun Geothermal Stored heat energy in the Earth

3. Mind map tidal nuclear Stored heat energy in the Earth wave wind solar hydroelectric biomass geothermal fossil fuels

4. Solar energy Solar cells are expensive/cheap to make. Even though they only provide energy at low power / high power, sometimes they are the best solution to providing energy. Satellites in space use solar cells as a source of energy. Solar power stations can use concave/convex mirrors to focus energy on a boiler. This produces the steam to turn a turbine, which in turn drives a generator and then produces electricity. Solar cells contain toxic/harmless chemicals that if ‘dumped’ can poison habitats.

5. Solar power Renewable Unreliable – why? No acid rain Few areas suitable No global warming Low power energy source Toxic chemicals in solar cells can damage habitats Cheap to run once built Expensive to build

6. Wind Unlike fossil fuels and solar energy, there is no need for a b____ in a wind turbine. The wind turns the turbine d_____ - no s____ is required. Wind energy is very l so you need many wind turbines to meet the same energy requirements as a fuel-burning power station. You need to find an a large a___ of land, away from settlements because of the n___, and it obviously has to be w___! oiler irectly team ow power rea oise indy

7. Wind power Renewable Unreliable No acid rain Few areas suitable Cheap to run once built Low power energy source Noisy and unsightly No global warming Expensive to build Large area required Kills migratory birds

8. Wave ind The S__ produces the w___ and the wind causes w____. Waves can be used to turn t_______ directly and generate electricity. un aves urbines enewable Wave energy is r________. No air pollution is produced such as sulphur dioxide or nitrogen oxides that cause acid rain. It is also cheap to run once built. The problems are that it is expensive to set up. There are few areas suitable, it can kill flora and fauna and the energy you get is very l . ow power

9. Tidal ides The M___ causes the t____. This causes the level of the sea to rise and fall. This movement of the sea can be used to turn turbines directly and generate e________. oon lectricity enewable Tidal energy is r________ and non-polluting. It is cheap to run once built. The problems are that it is to set up. There are few areas suitable, it can kill flora and fauna and the energy you get is very l . expensive ow power

10. Biomass This is where you burn organic/inorganic matter, be it plant or animal. The reason it is classed as renewable/non-renewable is that you can reproduce this matter relatively quickly. For example, you can just grow some more plants. However you do require a large area/small area of land.

11. Geothermal Advantages? Disadvantages? Warm water comes back up and used to turn turbines Renewable Cold water pumped down No acid rain or greenhouse effect Cheap once built Few areas suitable Expensive to build Water heated by hot rocks

12. Hydroelectricity

13. Hydroelectricity Renewable Destroys habitats No acid rain Few areas suitable Unsightly No global warming Cheap to run once built Expensive to build Large area required Some systems pump water back up at night with the surplus electricity – energy efficient.

14. The Sun A supernova The Moon Radioactive rocks What is the energy source for tidal energy? 

15. Kinetic  gravitational Gravitational  kinetic Kinetic  electrical Heat  Kinetic What is the energy change for falling water? 

16. Wind Biomass Nuclear Hydroelectric Which of the following is not renewable? 

17. Acid rain Greenhouse effect Destroys habitats Radioactive waste What is an environmental problem associated with hydroelectricity? 