Pearson Edexcel International GCSE (9–1) · PHYSICS · Unit
Energy Resources and Energy Transfers
175 practice questions
Topics covered
Practice questions
51–60 of 175
Question 51
1 mark · Easy
Answer and check →Which of the following will increase the kinetic energy of a moving skateboard most?
- A.Doubling the mass of the skateboard
- B.Doubling the speed of the skateboard
- C.Halving the mass of the skateboard
- D.Halving the speed of the skateboard
Question 52
2 marks · Easy
Answer and see the solution →A bicycle and its rider have a total mass of 70 kg and are moving with a speed of 5 m/s. Calculate their kinetic energy. Give your answer in joules.
Question 53
1 mark · Easy
Answer and see the solution →Give the SI unit for kinetic energy.
Question 54
3 marks · Easy
Answer and see the solution →A book of mass 2 kg is resting on a shelf that is 4 m above the ground.
(a)[1 mark]State the equation you would use to calculate the gravitational potential energy (GPE) of the book.
(b)[2 marks]Calculate the GPE of the book. Take .
Question 55
1 mark · Easy
Answer and see the solution →Name the energy store that increases when an object is moved upwards away from the ground.
Question 56
2 marks · Easy
Answer and see the solution →A toy of mass 0.5 kg is lifted from the floor onto a table 0.8 m high. Calculate the increase in gravitational potential energy. Take .
Question 57
2 marks · Easy
Answer and see the solution →Describe what happens to the energy stores of a ball when it is dropped from a height until it comes to rest on the ground.
Question 58
3 marks · Normal
Answer and see the solution →A tennis ball of mass 0.060 kg is thrown horizontally at a speed of 18 m/s.
(a)[3 marks]Calculate the kinetic energy of the ball.
Question 59
4 marks · Normal
Answer and see the solution →A car of mass 1100 kg is travelling at 20 m/s on a motorway.
(a)[2 marks]Calculate the kinetic energy of the car.
(b)[2 marks]Explain what happens to this energy if the car brakes to a stop.
Question 60
3 marks · Normal
Answer and see the solution →A football of mass 0.45 kg is moving at 12 m/s towards a goal.
(a)[3 marks]Calculate its kinetic energy.