Solar power producing heat
1 mark · EasyState one reason why solar heating panels only provide small quantities of hot water.
Work this out on paper, then compare with the answer and worked solution below. With a free account you can submit written answers for marking.
Show answer
Because they only use the Sun’s energy and depend on weather or sunlight
Also accept: Amount of energy from the Sun is limited; Work only when the Sun is shining
Common mistakes: They are small; They use little water
Show mark scheme and worked solution
Marking points
B1 · 1 mark · 1 mark for a valid scientific reason (limited by sunlight).
Worked solution
Solar heating panels provide small quantities of hot water because the energy they use comes only from sunlight, which can be limited by weather or time of day.