Questions on Energy Sources
Q4. The drawing shows Mark’s house. He uses three methods to generate electricity.
Draw a straight line from each of the two methods below to the main energy resource used to generate electricity. Draw only two lines.
2 marks
(b)
(i) The solar cells cannot work at night. Give the reason for this.
They cannot work because there is no light OR 'not enough light' OR 'because it is dark'
Accept 'no rays from the Sun' OR 'no sunshine'
Accept 'they cannot collect the Sun's energy at night'
Accept 'because they need light to work'
Do not accept 'no heat from the Sun'
1 mark
(ii) The wind turbine cannot generate electricity all the time. Give the reason for this.
It might not be windy all of the time OR the wind might not be strong enough all of the time.
1 mark
Maximum 4 marks
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