Pearson Edexcel International GCSE (9–1) · PHYSICS · Unit
Energy Resources and Energy Transfers
175 practice questions
Topics covered
Practice questions
21–30 of 82 · Easy
Question 21
1 mark · Easy
Answer and see the solution →State the equation used to calculate the work done when a force moves an object in the direction of the force.
Question 22
1 mark · Easy
Answer and check →A force of 10 N moves an object 4 m in the same direction as the force. How much work is done?
- A.40 J
- B.14 J
- C.2.5 J
- D.0.4 J
Question 23
3 marks · Easy
Answer and see the solution →A person uses a constant force of 50 N to push a trolley 3 metres along a flat surface in the direction of the force.
(a)[2 marks]Calculate the work done on the trolley by the person.
(b)[1 mark]State the amount of energy transferred to the trolley.
Question 24
1 mark · Easy
Answer and see the solution →State the equation used to calculate the kinetic energy of an object.
Question 25
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 26
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 27
1 mark · Easy
Answer and see the solution →Give the SI unit for kinetic energy.
Question 28
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 29
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 30
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 .