Pearson Edexcel International GCSE (9–1) · PHYSICS · Unit
Energy Resources and Energy Transfers
175 practice questions
Topics covered
Practice questions
61–70 of 82 · Easy
Question 61
2 marks · Easy
Answer and see the solution →Explain why the pipes inside a solar heating panel are usually painted black.
Question 62
3 marks · Easy
Answer and see the solution →A solar heating panel is used to heat water in a tank.
(a)[1 mark]State one way you could maximise how much sunlight falls on the panel in a day.
(b)[1 mark]State how the water is heated as it flows through the panel.
(c)[1 mark]Give one reason why the panel is insulated at the back.
Question 63
2 marks · Easy
Answer and see the solution →Consider a location in the northern hemisphere using solar heating panels.
(a)[1 mark]Which direction should panels face for best heating?
(b)[1 mark]Explain why this direction is chosen.
Question 64
1 mark · Easy
Answer and see the solution →State one reason why solar heating panels only provide small quantities of hot water.
Question 65
2 marks · Easy
Answer and see the solution →The diagram shows a solar heating panel used on a house.
Simple solar heating panel (a)[1 mark]Label on the diagram: i) The flow direction of water in the pipe
(b)[1 mark]State how the panel should be angled relative to sunlight for maximum efficiency.
Question 66
1 mark · Easy
Answer and see the solution →Give one way using solar heating panels helps protect the environment.
Question 67
1 mark · Easy
Answer and see the solution →State one reason why hydroelectric power stations are able to respond quickly to sudden increases in electricity demand.
Question 68
1 mark · Easy
Answer and check →Which type of power station is best for meeting a sudden, short-term increase in electricity demand?
- A.Coal-fired power station
- B.Hydroelectric power station
- C.Nuclear power station
- D.Wind farm
Question 69
2 marks · Easy
Answer and see the solution →Explain why nuclear power stations cannot be used to meet rapid, unexpected increases in electricity demand.
Question 70
2 marks · Easy
Answer and see the solution →Electricity suppliers must match supply exactly to demand to avoid power cuts.
(a)[1 mark]State one way electricity demand can change suddenly.
(b)[1 mark]Name a type of power station that is usually used to deal with these sudden changes.