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12 Cards in this Set
- Front
- Back
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How is water used to produce electricity? |
Water is heated to produce steam => The steam drives a turbine => coupled to generator which produces electricity |
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Fossil fuels |
Oil Carbon Gas Obtained from long-dead biological material. Used in UK power stations. |
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Biofuel |
Any fuel obtained from living or recently living organism - Biofeuls are renewable energy - Biofeuls are carbon-neutral E.g Waste vegetable oil, methane, ethanol. |
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Renewable sources energy |
Energy that can be replaced at the same rate they are used up Trying to use more renewable sources of energy in the future. E.g Biofuels |
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Non- Renewable |
Energy that cannot be replaced at the same rate at which they used up. The majority of power stations use Non-Renewable sources of energy. |
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Carbon-Neutral |
When the carbon taken in as carbon dioxide from plants and organisms balances the amount released from the energy source. |
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Nuclear power stations? |
The nucleus of uranium (most commonly used) is unstable and can split in two. When this happens it releases a lot of energy. In the reactor core of the station there is a lot of uranium nuclei. The energy is used to heat water which produces steam. |
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Wind Energy |
Wind turns a wind a turbine which is used to drive a generator to produce electricity Unreliable because wind is not always available |
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Wind Energy |
Wind turns a wind a turbine which is used to drive a generator to produce electricity Unreliable because wind is not always available |
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Wave Energy |
A wave generator is used with a floating turbine that turns a generator. This is connected to the grid via a cable. |
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Hydroelectricity |
First water is collected in a reservoir at the top of a hill. When water comes down it turns a turbine which drives the generators at the bottom of the hill. Process can be repeated if water is pumped to the top. |
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Tidal Power |
Water from a high tide is trapped behind a barrage. The water is released back into the sea through turbines. The turbine drive generators in the barrage. |
