Physics p3

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What is the purpose of a Sankey diagram?
To show the generation and the distribution of electricity, including the efficiency of energy transfers.
1 of 10
What is meant by a 'reasonable site'?
One that is windy and exposed.
2 of 10
Why is electricity distributed through the National Grid at high voltage?
To reduce the energy losses.
3 of 10
Name five primary energy sources used to generate electricity.
Coal, gas, oil, nuclear, wind, water (hydroelectric, tidal, wave) or solar/biofuel.
4 of 10
The burning of fossil fuels releases carbon dioxide into the atmosphere. What two problems does this contribute to?
Global warming and climate change.
5 of 10
How is voltage induced between the ends of a coil?
By rotating a magnet near the coil.
6 of 10
What are the three forms of energy that are involved in a hydroelectric power station?
Potential energy, kinetic energy and electrical energy.
7 of 10
Why are wind turbines a better alternative to conventional power stations? (finish answer)
Wind turbines are an example of renewable energy and they provide free energy as long as the wind is blowing. Conventional power stations need energy supplies, fossil fuels, which are running out and both nuclear and fossil fuels cause environmental
8 of 10
List alternative renewable energy sources.
Wind, waves, hydroelectric power, biofuel e.g. wood, solar power and geothermal.
9 of 10
What useful energy change occurs in a wind turbine?
Kinetic to electrical.
10 of 10

Other cards in this set

Card 2

Front

What is meant by a 'reasonable site'?

Back

One that is windy and exposed.

Card 3

Front

Why is electricity distributed through the National Grid at high voltage?

Back

Preview of the front of card 3

Card 4

Front

Name five primary energy sources used to generate electricity.

Back

Preview of the front of card 4

Card 5

Front

The burning of fossil fuels releases carbon dioxide into the atmosphere. What two problems does this contribute to?

Back

Preview of the front of card 5
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