Geothermal energy can be described as a renewable energy source. Describe what is meant by geothermal energy.
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Card 7
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Describe what 'renewable energy' means.
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Card 8
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Give two disadvantages of using geothermal energy to generate electricity.
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Card 9
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Old coal-fired power station output=2MW(million watts).Electricity generating company plans to replace it with wind turbines+its maximum output=4000W each.Calculate minimum number of wind turbines needed to replace the old power station.
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Card 10
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Suggest why more wind turbines than this might be needed in reality.
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Card 11
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Give two reasons why some people might oppose the wind farm developement.
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Card 12
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The wind turbines will need to be connected to the National Grid. Explain why the National Grid uses step-up transformers.
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Card 13
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Inhabitants of a remote island don't have the resources to build a nuclear power plant-no fossil fuels.Islanders considered using wind,solar+hydroelectric power to generate electricity.Name two other renewable energy sources they could use.
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Card 14
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The islanders decide that both solar and hydroelectric power could reliably generate enough electricity for all their needs. Suggest two other factors they should consider when deciding which method of electricity to use.
