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15 Cards in this Set
- Front
- Back
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How does hydroelectric power work? |
Water flows from an upland reservoir through pipes and uses the gravity of falling water to turn the turbines. |
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What are the advantages of biofuels? |
They are renewable (plants can be regrown). They are carbon neutral (produce the same amount of CO2 as the plants take in). |
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What is an advantage of a nuclear power station? |
Does not produce CO2. |
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Give one advantage and one disadvantage of wind power. |
It is renewable. It is unreliable. |
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Give one advantage and one disadvantage of wave power. |
It is renewable It is unreliable. |
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Where do geothermal power stations get their energy to generate the steam to turn their turbines? |
Molten rocks (magma) deep below the ground. |
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Give one advantage and one disadvantage of tidal power. |
Reliable source of power Salt water will rust and damage equipment |
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Why are fossil fuels damaging to the environment. |
They produce greenhouse gases when burnt. |
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Burning fossil fuels produces sulfur dioxide, how is this damaging to the environment? |
Results in acid rain. |
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What type of power station can be started the fastest? |
Hydroelectric power |
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What type of power station does not produce greenhouse gases or radioactive waste? |
Geothermal |
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List the forms of renewable energy that are unreliable. |
Solar, Wind, Wave, Hydroelectric |
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How is excess electrical energy (produced at night) stored for when it is needed? |
Using pump storage schemes like hydroelectric power stations. |
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What types of power station produce most of the power for the national grid? |
Nuclear and coal |
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What is are possible sources of methane gas for biofuel reactors? |
Animal manure, sewage, decomposing waste. |
