P3.2 How can electricity be generated?

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  • Created by: sofsdvds
  • Created on: 05-05-16 22:05
Why is electricity convenient?
It is easily transmitted over distances and can be used in many ways
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How is mains electricity produced?
By generators
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How do generators produce electricity?
Generators produce a voltage across a coil of wire by spinning a magnet near it
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What does a bigger current supplied by a generator require?
More primary fuel used every second
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Explain how a power station works?
1. A primary energy source is used to heat water 2. The steam produced drives a turbine 3. Which turns an electrical generator 4. Electricity is produced
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What do nuclear power stations produce?
Radioactive waste
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What does radioactive waste emit?
Ionising radiation
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What can increased exposure to ionising radiation do to living cells?
Damage to living cells increases eventually leading to cancer or cell death
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What is contamination?
Some of the radioactive material can be swallowed or breathed in. While inside the body, the radiation it emits can cause damage.
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What is irradiation?
The radiation from the material can damage the cells of the person directly.
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Which is more dangerous, contamination or irradiation?
Contamination by a radioactive material is more dangerous than a short period of irradiation from the radioactive material
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What are hydroelectric, wave and wind?
Renewable sources of energy that drive the turbine directly
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What is mains supply voltage?
230 volts
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How is electricity distributed?
Through the National Grid at high voltages to reduce energy losses
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Other cards in this set

Card 2

Front

How is mains electricity produced?

Back

By generators

Card 3

Front

How do generators produce electricity?

Back

Preview of the front of card 3

Card 4

Front

What does a bigger current supplied by a generator require?

Back

Preview of the front of card 4

Card 5

Front

Explain how a power station works?

Back

Preview of the front of card 5
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