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Which part of a power station turns kinetic energy into electrical energy?
Generator
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Name the two particles in the nucleus of an atom
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Name 3 renewable ways to generate electricity
- Any 3 from:
- Wind
- tidal
- biofuel,
- solar,
- geothermal,
- hydroelectric,
- wave
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What does a solar heating panel do?
Traps heat from the sun and uses it to warm water
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What advantage does Carbon Capture & Storage (CCS) give power stations?
Traps the carbon dioxide before it is released. This then does not contribute to the greenhouse effect and global warming.
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Why are high voltages used to transmit power on power lines?
It is more efficient (less energy is lost)
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Which type of power station has the longest start-up time?
Nuclear
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Which releases more energy per kg, plutonium or coal?
plutonium
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What is a biofuel?
A fuel obtained from living or recently living organisms
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What is the name of the process whereby an atom's nucleus splits into 2 or more pieces?
Nuclear fission
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Why is tidal power more reliable than wind power?
The movement of tides happens regularly every day whereas wind does not always blow.
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What do we call geothermal heat used to heat buildings?
Ground heat
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Name 2 problems caused by burning fossil fuels
- 1. Increased greenhouse gases causing global warming
- 2. Acid rain (from the sulfur released)
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What do step-up transformers do?
Increase the voltage and reduce the current
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What type of power stations are used to fulfil the base-load demand
Nuclear, Coal, Oil
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Give two examples of biofuels
- Any two from:
- Methane
- Ethanol
- Straw
- Wood chip
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What is the name of the big fan that is turned by steam inside a power station
turbine
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What does a solar cell do?
Converts solar energy into electrical energy
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What gas causes acid rain?
Sulphur dioxide
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What is the purpose of transformers in the National Grid?
Increase or reduce voltages to the levels required
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What do step-down transformers do?
Increase the current and reduce the voltage
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Why is nuclear fuel classed as non-renewable?
Because supplies of nuclear fuel will eventually run out (even though they may last a long time)
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