Pearson Edexcel International GCSE (9–1) · PHYSICS · Unit
Energy Resources and Energy Transfers
175 practice questions
Topics covered
Practice questions
81–82 of 82 · Easy
Question 81
4 marks · Easy
Answer and see the solution →A ball of mass 0.6 kg is lifted from the floor onto a table 0.8 m high. It is then pushed and rolls off the edge, falling to the ground below.
(a)[2 marks]Calculate the increase in gravitational potential energy (GPE) of the ball when it is placed on the table. Take gravitational field strength as 10 N/kg.
(b)[1 mark]State what happens to the GPE of the ball as it falls to the ground.
(c)[1 mark]Name one other store of energy that the ball has just before it touches the ground.
Question 82
4 marks · Easy
Answer and see the solution →A wind turbine is used to generate electricity for a small village.
(a)[1 mark]Is the energy resource used here renewable or non-renewable? State your answer.
(b)[2 marks]Describe one advantage and one disadvantage of using wind turbines for electricity production.
(c)[1 mark]Name the main energy transfer that takes place in the wind turbine.