Energy, work and power — Paper 1 · IGCSE Sciences - Co-ordinated (9-1) 0973

28 Which is a unit of energy? A J B kg C N D W

1 marks

Answer: A

This question in 0973/11 May/June 2020

31 Which statement describes the production of electricity from a renewable energy source? A Coal is burnt to release energy to make steam that turns a generator. B Moving air passes over blades that rotate and turn a generator. C Nuclear fission releases energy to make steam that turns a generator. D Oil is burnt to release energy to make steam that turns a generator.

1 marks

Answer: B

This question in 0973/11 May/June 2020

30 Electricity is generated in power stations. Many power stations use steam to drive turbines. Which type of power station does not use steam? A chemical energy (fuel) power stations B geothermal energy power stations C hydroelectric energy power stations D nuclear energy power stations

1 marks

Answer: C

This question in 0973/11 Oct/Nov 2020

31 The diagram shows a man diving into water. Which form of energy is increasing as he accelerates downwards through the air? A chemical B elastic potential (strain) C gravitational potential D kinetic

1 marks

Answer: D

This question in 0973/11 May/June 2021

32 Which two quantities are used to calculate power? A distance moved and time taken B speed and distance moved C work done and speed D work done and time taken

1 marks

Answer: D

This question in 0973/11 May/June 2021

31 The diagram shows a man diving into water. Which form of energy is increasing as he accelerates downwards through the air? A chemical B elastic potential (strain) C gravitational potential D kinetic

1 marks

Answer: D

This question in 0973/12 May/June 2021

30 A ball falls vertically downwards. Which energy transfer takes place as the ball accelerates downwards? A gravitational potential to elastic potential (strain) B gravitational potential to kinetic C elastic potential (strain) to kinetic D kinetic to gravitational potential

1 marks

Answer: B

This question in 0973/11 Oct/Nov 2021

31 Four cars travel the same distance directly up the same steep hill. The weights of the cars and the times for their journeys are shown in the table. Which car develops the greatest power? weight of car / N time taken / s A 15 000 10 B 15 000 15 C 20 000 10 D 20 000 15

1 marks

Answer: C

This question in 0973/11 Oct/Nov 2021

31 A student walks up some steps at constant speed. Which two quantities provide enough information so that the useful power produced by the student can be calculated? A the weight of the student and the time taken B the weight of the student and the total height of the steps C the work done by the student and the time taken D the work done by the student and the total height of the steps

1 marks

Answer: C

This question in 0973/11 May/June 2022

32 Which energy resource does not use a turbine and generator to produce electricity? A geothermal B nuclear fission C solar cells D wind

1 marks

Answer: C

This question in 0973/11 May/June 2022

30 A student lifts a box vertically from the floor and places it on a table. Which two quantities must be known in order to calculate the work done on the box by the student? A the force used to lift the box and the height of the table B the force used to lift the box and the time taken to lift the box C the volume of the box and the height of the table D the volume of the box and the time taken to lift the box

1 marks

Answer: A

This question in 0973/12 May/June 2022

31 Which energy resource does not use a turbine and generator to produce electricity? A geothermal B nuclear fission C solar cells D wind

1 marks

Answer: C

This question in 0973/12 May/June 2022

31 Which electrical device transfers chemical energy into electrical energy? A battery B lamp C electric motor D television

1 marks

Answer: A

This question in 0973/11 Oct/Nov 2022

32 From which type of energy is electrical energy transferred in a hydroelectric power station? A chemical potential energy B elastic potential (strain) energy C gravitational potential energy D nuclear energy

1 marks

Answer: C

This question in 0973/11 Oct/Nov 2022

32 A skier starts from rest at P, accelerates down a slope and then comes to rest at Q. skier P Q Which series of energy transfers takes place? A elastic potential (strain) energy → kinetic energy → thermal energy B gravitational potential energy → kinetic energy → thermal energy C kinetic energy → elastic potential (strain) energy → thermal energy D kinetic energy → gravitational potential energy → thermal energy

1 marks

Answer: B

This question in 0973/11 May/June 2023

30 Electricity is generated using different sources of energy. Which energy source is non-renewable? A coal B hydroelectric C solar D wind

1 marks

Answer: A

This question in 0973/12 May/June 2023

31 Which two energy sources are both non-renewable? A oil and geothermal resources B oil and natural gas C tides and geothermal resources D tides and wind

1 marks

Answer: B

This question in 0973/11 Oct/Nov 2023

31 The power rating of an electric kettle is 1500 W. What does this mean? A The kettle requires 1500 J to boil water. B The kettle takes 1500 s to boil water. C The kettle transfers 1500 J of energy every second. D The weight of the kettle is 1500 N.

1 marks

Answer: C

This question in 0973/11 May/June 2024

31 What is the energy source for a wind turbine that is producing electricity? A chemical potential energy of wind B gravitational potential energy of wind C kinetic energy of wind D thermal energy of wind

1 marks

Answer: C

This question in 0973/12 May/June 2024

30 When a ball is kicked vertically upwards, its initial kinetic energy is 12 J. When the ball arrives back at its starting point, its kinetic energy is 8.0 J. Which statement explains the change in the kinetic energy of the ball? A 4.0 J of work is done to increase the gravitational potential energy of the ball. B 4.0 J of work is done to overcome air resistance. C 20 J of work is done to increase the gravitational potential energy of the ball. D 20 J of work is done to overcome air resistance.

1 marks

Answer: B

This question in 0973/11 Oct/Nov 2024

31 A motor lifts a load vertically upwards at constant speed. The weight of the load is known. Which of the other quantities in the table must be known to determine the useful power output of the motor? height lifted | “ne fo im A J Jv key B Jv x /¥ = this quantity is needed Cc x v X = this quantity is not needed D x x

1 marks

Answer: A

This question in 0973/11 Oct/Nov 2024

29 What is a unit of energy? A W B N C kg D J

1 marks

Answer: D

This question in 0973/11 Oct/Nov 2025