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State the main method of thermal energy transfer through: SAUCEPAN «0. Water.
See it on the paper →Describe the process which causes the release of energy in stars.
See it on the paper →Calculate the current in the kettle. current = A
See it on the paper →State the name of the energy store in the battery.
See it on the paper →Describe how energy is transferred from this store to the lamp when the lamp is lit.
See it on the paper →Calculate the gravitational potential energy transferred by the ball. gravitational potential energy = J
See it on the paper →Calculate the speed at which the ball hits the ground. Air resistance is negligible. speed = m / s (ii)
See it on the paper →The ball rebounds to a height of 8.2 m. Air resistance is negligible. Suggest why the ball does not reach a height of 9.4 m after it bounces. (c) (i)
See it on the paper →This question was answered well with many candidates giving the correct answer.
— Examiner report, May/June 2025, 0654/42 Q12(b)(iii) (Cambridge)
Light and thermal energy were sometimes suggested as the two forms of energy emitted by filament lamps. Electrical energy was frequently suggested.
— Examiner report, May/June 2023, 0654/33 Q9(c)(i) (Cambridge)
Efficiency was calculated correctly in the majority of cases. The most common error was to multiply by 90 rather than 0.9 resulting in a power of 10 error.
— Examiner report, May/June 2023, 0654/41 Q6(b) (Cambridge)
Past papers, syllabus and examiner reports © UCLES (Cambridge University Press & Assessment). Questions are matched to topics from the official syllabus. AssessPro is independent and not endorsed by Cambridge.
Calculate the percentage efficiency of the energy transfer in the bounce. percentage efficiency = %
Energy from the Sun travels to Earth by radiation. Satellites in orbit around the Earth can be in direct sunshine for long periods of time. Suggest the colour and texture chosen for the outer surface of a satellite to limit the temperature of the satellite.
See it on the paper →Complete the sentence about energy resources. The Sun is the source of energy for all our energy resources except nuclear, and tidal.
See it on the paper →The generator converts kinetic energy into electrical energy. The efficiency of the generator is 75%. Calculate the kinetic energy required to produce 3600 J of electrical energy. kinetic energy = J
See it on the paper →State two forms of energy emitted by filament lamps.
See it on the paper →The boiler has an efficiency of 90%. The combustion of natural gas provides an input energy of 1.50 kJ. Calculate the useful energy output from the boiler. useful energy output = kJ
See it on the paper →There are solar cells on the roof of the house. State one advantage and one disadvantage of generating electricity using solar cells. Do not include the cost. advantage disadvantage
See it on the paper →The bus uses stored chemical energy from fuel to accelerate up a hill. Some of this energy is transferred to thermal energy and sound energy. State two other forms of energy transferred to the bus as it accelerates up the hill. energy energy
See it on the paper →The fuel used by the bus is produced from petroleum. Petroleum is a non-renewable energy source. Name one other non-renewable energy source and one renewable energy source. non-renewable energy source renewable energy source
See it on the paper →Fig. 6.3 represents an electromagnetic wave. On Fig. 6.3 mark and label one wavelength. Fig. 6.3
See it on the paper →Solar energy is sometimes used to power torches. Solar energy is a renewable energy resource. State two other renewable energy resources.
See it on the paper →Thermal energy passes through the metal casing of the tumble dryer. State the method of thermal energy transfer through metals.
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