Pearson Edexcel International GCSE (9–1) · PHYSICS · Chapter
Work and Power
58 practice questions
Topics covered
Practice questions
1–10 of 26 · Easy
Question 1
1 mark · Easy
Answer and check →Which physical quantity is equal to the work done on an object?
- A.Force
- B.Energy transferred
- C.Distance moved
- D.Power
Question 2
2 marks · Easy
Answer and see the solution →A small box is pushed with a force of 25 N along a smooth surface for a distance of 3 m in the direction of the force.
(a)[1 mark]State the equation relating work done, force and distance moved.
(b)[1 mark]Calculate the work done on the box.
Question 3
1 mark · Easy
Answer and see the solution →State the SI unit of work done.
Question 4
2 marks · Easy
Answer and see the solution →An athlete holds a heavy backpack still above their head for 10 seconds. Explain why no work is done on the backpack, even though the athlete is exerting a force upward.
Question 5
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 6
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 7
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 8
1 mark · Easy
Answer and see the solution →State the equation used to calculate the kinetic energy of an object.
Question 9
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 10
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.