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P1: Quiz 11 – Answers
P1: Quiz 11 – Answers
1) Renewable energy sources will never run out/ we will always have access to them/ we are using them at a slower rate than they are being replaced or produced
2)
a) Wind passing through the wind turbine causes the blades to move. The blades are connected to a generator, which generates electricity.
b) The wind is stronger above ground than on the ground, so the turbines generate more electricity on top of a pole rather than on the ground
c) Any 3 from:
3)
a) Any 2 from:
4) Radiators to heat a home and hot water for showers/ taps
2)
a) Wind passing through the wind turbine causes the blades to move. The blades are connected to a generator, which generates electricity.
b) The wind is stronger above ground than on the ground, so the turbines generate more electricity on top of a pole rather than on the ground
c) Any 3 from:
- wind is renewable
- they produce no greenhouse gases/ pollution whilst they are generating electricity
- the running cost is very low
- they have a very little/ no effect on the landscape; if they are removed, the landscape will look the same as it did before the wind turbines were there
- electricity generation is dependent on weather conditions/ they only generate electricity when it is windy
- they cannot respond to an increase in electricity demand
- noisy
- unsightly
- pollution is produced during the production, transportation and installation of the wind turbines
- wind turbines are quite expensive to make
3)
a) Any 2 from:
- renewable resource
- they produce no greenhouse gases/ pollution whilst they are generating electricity
- the running cost is very low
- electricity generation is dependent on weather conditions/ they only generate electricity when it is sunny
- they cannot respond to an increase in electricity demand
- pollution is produced during the production, transportation and installation of the solar cells
- the initial cost is quite expensive
4) Radiators to heat a home and hot water for showers/ taps
Questions
1) Give a definition of a renewable energy source.
2)
a) Briefly explain how wind turbines generate electricity.
b) Why are the turbines found on top of a tall tower?
c) Give 3 positives of using wind turbines to generate electricity.
d) Give 3 negatives of using wind turbines to generate electricity.
3) Solar cells can be used to generate electricity.
a) Give 2 positives of using solar cells to generate electricity.
b) Give 3 negatives of using solar cells to generate electricity.
4) Solar panels can be used to heat up water. What can the heated water be used for in a home?
1) Give a definition of a renewable energy source.
2)
a) Briefly explain how wind turbines generate electricity.
b) Why are the turbines found on top of a tall tower?
c) Give 3 positives of using wind turbines to generate electricity.
d) Give 3 negatives of using wind turbines to generate electricity.
3) Solar cells can be used to generate electricity.
a) Give 2 positives of using solar cells to generate electricity.
b) Give 3 negatives of using solar cells to generate electricity.
4) Solar panels can be used to heat up water. What can the heated water be used for in a home?