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P1 Renewable

Edexcel P1 Renewable vs non-renewable energy

QuestionAnswer
Name 6 renewable energy resources Solar cells, Hydroelectricity, Wind turbines, geothermal, tidal power and wave power
What does "renewable" mean? The resource will not run out
What is the drawback of Solar cells? They do not work at night.
What are solar cells? Like the ones on your calculators: they convert light energy into electrical energy
How is hydroelectricity generated? Falling water turns turbines that turn a generator
What is the benefit of hydroelectricity? It can be started (and stopped) very quickly; it works by all weather
What is the drawback of hydroelectricity? You need to build dams across mountains and that destroys habitats;there are not many suitable places
What is tidal power? When the tide turns turbines that turn a generator
What is the benefit of tidal power? It comes on at predictable times
What is the drawback of tidal power? You need to build dams across an estuary (river mouth)and that destroys habitats; there are not many suitable places
What is geothermal energy? When the hot rocks turn water into steam; the steam then turns turbines that turn a generator
What is the benefit of geothermal energy? Available all the time
What is the drawback of geothermal energy? Only available in certain places/volcanic areas like Iceland
What is wave power? As a sea wave passes through, air is moved up and down; this turns a turbine that turns a generator
What is the benefit of wave power? Available all the time (best in winter)
What is the drawback of wave power? People may oppose them
What is the benefit of solar cells Works best in summer
What is the drawback of wind turbines? Some people think that they spoil the landscape, that they are noisy; they need wind (work best in winter)
Name 4 non-renewable sources of energy Coal, oil, gas and uranium
What is the benefit of power stations that use coal, oil or gas? Available all the time: reliable source of energy. Produces a lot of energy (more cheaply than renewable sources).
What are TWO advantages of gas over coal or oil? No Sulphur Dioxide produced. Less Carbon Dioxide (for same amount of electricity produced)
What are TWO drawbacks of power stations that use coal, oil or gas? They produce Carbon Dioxide (responsible for global warming) and Sulphur Dioxide (responsible for acid rain)
What is the benefit of nuclear Power Station? They do not produce any CO2 or SO2. Available all the time: reliable source of energy. Produces a lot of energy (more cheaply than renewable sources).
What is the drawback of Nuclear power Stations At the end of its life, the nuclear power station needs to be decommisionned carefully. That makes Nuclear Power Stations more expensive than fossil fuel ones.
What does "decommission" mean? Dismantling safely and burying the radioactive material
What is the fuel in a Nuclear power station? Uranium
Why can Nuclear Power Stations be very dangerous? The radioactive material causes cancer and can be transported over long distance by the wind
Created by: ursulinephys
 

 



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