P3- Sustainable Energy

Ocr 21st century

Module P3

Why is energy transferred at high voltages?
To reduce the amount of energy loss
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How do you find out energy transferred?
Power x Time
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How do you find out power?
Voltage x Current
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What is a sankey diagram?
A diagram showing the use of energy
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Is electricity a primary or secondary energy source?
Secondary energy source
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What main gas does fossil fuels release when burnt?
Carbon dioxide
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Why is it difficult to replace fossil fuels?
Other sources have high running costs and may not produce much energy.
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Nuclear power stations don't produce CO2 emissions, so why are they used less than fossil fuels?
They're are very dangerous and could cause cancer and death if not controlled properly.
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Why aren't renweable energy sources used alot?
They don't produce as much eletricity as non-renewable energy sources
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Other cards in this set

Card 2

Front

How do you find out energy transferred?

Back

Power x Time

Card 3

Front

How do you find out power?

Back

Preview of the front of card 3

Card 4

Front

What is a sankey diagram?

Back

Preview of the front of card 4

Card 5

Front

Is electricity a primary or secondary energy source?

Back

Preview of the front of card 5
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