plumiHow much energy do we use?: OCR GCSE Combined Science B questions
Every OCR GCSE Combined Science B exam question on P2.1 How much energy do we use?, 2018–2025, with its mark scheme and examiner’s report.
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Calculations
Q7(c)
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Q10(a)(i)
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Q10(a)(ii)
The whole paper ↗Q10(b)(i)
The whole paper ↗Q10(b)(ii)
The whole paper ↗Q10(b)(iii)
The whole paper ↗Q2(a)(i)
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Q2(a)(ii)
The whole paper ↗Q2(b)(i)
The whole paper ↗Q2(b)(ii)
The whole paper ↗Q2(b)(iii)
The whole paper ↗Q3(b)
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Q4(a)
The whole paper ↗
Q4(b)
The whole paper ↗Q4(c)(ii)
The whole paper ↗Q4(d)
The whole paper ↗Q5(a)
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Q5(b)(i)
The whole paper ↗Q5(b)(ii)
The whole paper ↗Q5(a)(i)
The whole paper ↗
All 50 questions on How much energy do we use?, as a list
- June 2025, Physics Paper 3 Foundation, Q7(c) (4 marks): Ling wants to know how much they spend on boiling water in the kettle each week. Ling estimates that the kettle is switched on for a total of 5 hours each week.
- June 2025, Physics Paper 3 Foundation, Q10(a)(i) (2 marks): State two variables that Amit should control in this experiment. 1 2 [2]
- June 2025, Physics Paper 3 Foundation, Q10(a)(ii) (2 marks): Explain why Amit uses metal containers rather than plastic containers. [2]
- June 2025, Physics Paper 3 Foundation, Q10(b)(i) (1 mark): Draw a tangent to the curve at time of 15 minutes. [1]
- June 2025, Physics Paper 3 Foundation, Q10(b)(ii) (2 marks): Calculate the gradient of the tangent drawn in (b)(i). Gradient = °C / minute [2]
- June 2025, Physics Paper 3 Foundation, Q10(b)(iii) (2 marks): Sketch a curve on the graph to show the results of the experiment when a material of higher thermal conductivity is used. [2]
- June 2025, Physics Paper 7 Higher, Q2(a)(i) (2 marks): State two variables that Amit should control in this experiment. 1 2 [2]
- June 2025, Physics Paper 7 Higher, Q2(a)(ii) (2 marks): Explain why Amit uses metal containers rather than plastic containers. [2]
- June 2025, Physics Paper 7 Higher, Q2(b)(i) (1 mark): Draw a tangent to the curve at time of 15 minutes. [1]
- June 2025, Physics Paper 7 Higher, Q2(b)(ii) (2 marks): Calculate the gradient of the tangent drawn in (b)(i). Gradient = °C / minute [2]
- June 2025, Physics Paper 7 Higher, Q2(b)(iii) (2 marks): Sketch a curve on the graph to show the results of the experiment when a material of higher thermal conductivity is used. [2]
- June 2025, Physics Paper 7 Higher, Q3(b) (4 marks): Li buys an electric kettle with a power rating of 1.2 kW. Li uses the kettle for a total of 8 hours. Calculate the cost of using the kettle for 8 hours. Use the
- June 2024, Physics Paper 3 Foundation, Q4(a) (4 marks): A water heater in a pool has a power of 2300 W. It is switched on for 6 hours. Calculate the total energy transferred to the pool in 6 hours. Give your answer i
- June 2024, Physics Paper 3 Foundation, Q4(b) (1 mark): Suggest one reason for using the kilowatt-hour rather than the joule on electricity bills. [1]
- June 2024, Physics Paper 3 Foundation, Q4(c)(ii) (2 marks): On another day, the total energy transferred by the water heater is 15 kWh and the increase in internal energy of the water is 10.8 kWh. Calculate the efficienc
- June 2024, Physics Paper 3 Foundation, Q4(d) (1 mark): When the pool is not being used the water cools down. Suggest how the cooling effect can be reduced. [1]
- June 2024, Physics Paper 3 Foundation, Q5(a) (3 marks): This is the method: • Fill the space between the metal containers with the insulating material. Pour 100 cm3 boiling water into the inner container and place a
- June 2024, Physics Paper 3 Foundation, Q5(b)(i) (3 marks): Which material is the best thermal insulator? Explain your answer. [3]
- June 2024, Physics Paper 3 Foundation, Q5(b)(ii) (4 marks): Calculate the rate of change of temperature for straw, in degrees celsius per second. Use the data from the table and the equation: Rate of change of temperatur
- June 2024, Physics Paper 7 Higher, Q5(a)(i) (2 marks): Describe the useful energy transfers that take place while the electric motor lifts the load. [2]
- June 2024, Physics Paper 7 Higher, Q5(a)(ii) (2 marks): Describe how some energy is wasted in the electric motor. [2]
- June 2024, Physics Paper 7 Higher, Q5(b)(ii) (2 marks): The gravitational potential energy store of the load increases by 8.1 J when it is lifted 1 m. Calculate the efficiency of the electric motor. Use the equation:
- June 2023, Physics Paper 3 Foundation, Q6(a) (4 marks): Explain how the power rating, and the time the appliance is used for, affects the change in stored energy. Use data from the table. [4]
- June 2023, Physics Paper 3 Foundation, Q6(b) (1 mark): Beth wants her home to be warm. How can Beth reduce the energy losses from her home? [1]
- June 2023, Physics Paper 3 Foundation, Q7(a) (1 mark): The temperature of the soup increases. Which diagram describes the transfer between energy stores when the soup is heated? A Energy Energy B Energy Energy store
- June 2022, Physics Paper 3 Foundation, Q2(a) (1 mark): Complete the diagram to show the energy transferred to the surroundings. [1]
- June 2022, Physics Paper 3 Foundation, Q2(b) (3 marks): Calculate the efficiency of the microwave oven. Use the equation: efficiency = useful energy transferred total energy transferred Give your answer as a percenta
- June 2022, Physics Paper 3 Foundation, Q11(b) (1 mark): Sundip installs panels made of material with low thermal conductivity to the walls of a house. Describe how this will help to keep the house warm when it is col
- June 2022, Physics Paper 7 Higher, Q1(b) (1 mark): Sundip installs panels made of material with low thermal conductivity to the walls of a house. Describe how this will help to keep the house warm when it is col
- November 2021, Physics Paper 3 Foundation, Q4(a) (3 marks): The bubble machine transfers energy to the bubble wand and bubbles. Complete Fig. 4.2 to show the energy transfer from the battery to the rotating bubble wand.
- November 2021, Physics Paper 3 Foundation, Q9(a)(i) (3 marks): Calculate the total energy transferred when Nina charges the battery for 7.5 hours. Give your answer in kW h. Total energy transferred = kW h [3]
- November 2021, Physics Paper 3 Foundation, Q9(a)(ii) (3 marks): The charging increases the energy stored in the battery by 48.3 kW h. Calculate the efficiency of the charger. Give your answer as a percentage. Efficiency = %
- November 2021, Physics Paper 7 Higher, Q1(a)(i) (3 marks): Calculate the total energy transferred when Nina charges the battery for 7.5 hours. Give your answer in kW h. Total energy transferred = kW h [3]
- November 2021, Physics Paper 7 Higher, Q1(a)(ii) (3 marks): The charging increases the energy stored in the battery by 48.3 kW h. Calculate the efficiency of the charger. Give your answer as a percentage. Efficiency = %
- November 2020, Physics Paper 3 Foundation, Q6(c) (2 marks): The crane engine transferred 750 000 J lifting the elephant. Calculate the efficiency of the crane engine. Use your answer to part (b). useful energy transferre
- November 2020, Physics Paper 3 Foundation, Q6(d) (1 mark): The crane engine transferred more energy than the energy needed to lift the elephant. Describe what has happened to the energy that was not used to lift the ele
- November 2020, Physics Paper 3 Foundation, Q9(a) (1 mark): Complete the Sankey diagram in Fig. 9.1. Light and sound Energy radiation transferred J electrically 240 J Thermal energy store 48 J Fig. 9.1 [1]
- November 2020, Physics Paper 3 Foundation, Q9(b) (3 marks): Jamal wants to work out how long he watches television in one week. He makes some measurements of the energy transferred by the television. Energy transferred b
- November 2020, Combined Science Paper 4 Foundation, Q7(d)(i) (1 mark): Coal and oil are non-renewable sources of energy. Biofuels such as wood or straw pellets are renewable sources of energy. How are non-renewable sources of energ
- November 2020, Physics Paper 7 Higher, Q7(a) (3 marks): Explain how the power rating of the appliance, and the time used, affects the change in stored energy. Use data from the table to support your answer. [3]
- November 2020, Physics Paper 7 Higher, Q7(b)(i) (3 marks): Calculate the useful energy transferred to the cordless vacuum cleaner motor when it is used for 0.4 hours. The efficiency of the cordless vacuum cleaner motor
- November 2020, Physics Paper 7 Higher, Q7(b)(ii) (4 marks): Draw a labelled Sankey diagram to show the energy transfers that take place when the cordless vacuum cleaner is used for 0.4 hours. Use information from the tab
- November 2020, Physics Paper 7 Higher, Q7(c) (3 marks): The kettle uses the mains domestic electricity supply. Complete Fig. 7.1 to describe the energy transfers that take place when a kettle heats water, starting wi
- June 2019, Combined Science Paper 4 Foundation, Q4(a)(iii) (3 marks): Low temperatures can be dangerous for humans. Complete the sentences to describe why humans wear jackets in cold weather. Use words from the list. You may use e
- June 2019, Combined Science Paper 8 Higher, Q4(b)(i) (1 mark): Which word best describes how the heater warms the enclosure? [1]
- June 2019, Combined Science Paper 8 Higher, Q4(b)(ii) (1 mark): Which word best describes the galago’s fur reducing its heat loss? [1]
- June 2019, Combined Science Paper 8 Higher, Q4(b)(iii) (2 marks): Which words best describe how energy is transferred from the galago, as heat, to the surroundings? and [2]
- June 2019, Combined Science Paper 8 Higher, Q6(a) (6 marks): Jack would like to buy a house. He is comparing the energy efficiency of two houses, House A and House B. Fig. 6.1 shows a comparison of energy use and energy d
- June 2019, Combined Science Paper 8 Higher, Q6(b)(i) (2 marks): Calculate how much money, in £, each boiler, A, B and C, will save in running costs for Eve when compared to her current boiler. Cost of gas = 5p / kWh Boiler A
- June 2019, Combined Science Paper 8 Higher, Q6(b)(ii) (3 marks): Suggest which boiler Eve should buy, and give reasons for your choice. [3]
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