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A wind generator is used as the source of energy for a remote farmhouse - Edexcel - GCSE Physics - Question 3 - 2014 - Paper 1
Question 3
A wind generator is used as the source of energy for a remote farmhouse. (i) Complete the sentence by putting a cross (X) in the box next to your answer. If the fa... show full transcript
Worked Solution & Example Answer:A wind generator is used as the source of energy for a remote farmhouse - Edexcel - GCSE Physics - Question 3 - 2014 - Paper 1
Step 1
(i) Complete the sentence by putting a cross (X) in the box next to your answer.
Answer
Since the farmhouse is about 7 m high, the axle of the wind generator needs to be significantly higher to ensure the efficiency of energy generation from wind. Option A (20 m) is the most reasonable choice, as it provides a suitable height for wind capture while remaining practical for installation.
Step 2
(ii) Complete the flow chart to show the energy transfers that take place from the wind to light a lamp.
Answer
The flow chart should be completed as follows:
wind → generator → lamp
energy → energy → light energy
This shows that wind energy is converted into generator energy, which is further transformed into light energy by the lamp.