The newest 18 of 18 written questions. Open one to see it on the real paper.
Figure 12.2 shows the energy flow diagram for the car powered by a petrol engine. chemical kinetic energy energy 100% 35% internal (thermal) energy 65% Figure 12.2 Using Figure 12.2 demonstrate the principle of conservation of energy.
See it on the paper →The horse pulls the cart with a constant force of 1200 N. Show that the work done by the horse on the cart over a distance of 400 m is 480 000 J. (ii)
See it on the paper →Calculate the power output of the horse over the time of 300 s. power output = W
See it on the paper →The Sun transfers energy via infrared waves to the Earth. The Earth emits infrared radiation into space. State and explain what happens to the temperature of the Earth during the daytime and during the nighttime. daytime nighttime
See it on the paper →Energy transfers occur when electrical energy is supplied to a lamp. Fig. 12.1 shows a lamp and the energy transfers. useful output = 40 J of light energy wasted energy total input = 400 J of electrical energy Fig. 12.1 Use information from Fig. 12.1 to calculate the wasted energy. wasted energy = J
See it on the paper →Fig. 6.2 shows how the power output of one wind turbine changes with wind speed. 350 300 250 power output 200 / kW 150 100 50 0 0.0 5.0 10.0 15.0 20.0 25.0 30.0 35.0 wind speed m / s Fig. 6.2 On one particular day, the wind speed is 10 m / s. Calculate the energy generated by one wind turbine in 1 hour (3600 seconds)....
See it on the paper →Comprehensive responses • No correct answers were seen. Limited responses • Candidates needed to use the percentages given in the question.
— Examiner report, February/March 2026, 0654/32 Q12(b) (Cambridge)
Where candidates are required to show a particular outcome they must include the relevant equation for the relationship, in this case, work done = force distance. Some candidates just showed the mathematical relationship between the numbers with no other indication of what this represented.
— Examiner report, May/June 2025, 0654/31 Q9(a)(ii) (Cambridge)
A significant number of candidates did not know the relationship between power, work done and time and so manipulated the figures incorrectly or used the value for force.
— Examiner report, May/June 2025, 0654/31 Q9(a)(iii) (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.
State the main method of thermal energy transfer from the meteorite into the water.
What is the efficiency of the power station?
See it on the paper →State the main method of thermal energy transfer through: the copper saucepan the water.
See it on the paper →Suggest why the handle of the saucepan is made from plastic and not copper.
See it on the paper →The forklift truck does 2750 J of work on the crate when the crate is lifted through a height of 2.2 m. The gravitational field strength, g, is 10 N / kg. Calculate the mass of the crate. mass = kg
See it on the paper →State two types of energy gained by the aircraft as it accelerates and gains height after take-off. energy energy
See it on the paper →Choose words from the list to complete the sentences to describe the energy transfers that occur when the torch is switched on. You may use each word once, more than once or not at all. chemical light elastic electrical nuclear sound gravitational thermal The energy stored in the cells is potential energy. This energy...
See it on the paper →State the useful energy transformation that occurs in the generator. from energy to energy
See it on the paper →State the useful energy transformation that occurs in the lamp. from energy to energy
See it on the paper →When the skier goes to the top of a slope, he does work. As he climbs, his gravitational potential energy increases. Choose from the list the correct word to complete the sentence below. created gained lost transferred
See it on the paper →happens to the work done by the force on the object?
See it on the paper →Fig. 12.1 shows a gardener using a leaf-blower. Fig. 12.1 Fig. 12.2 shows the energy input and outputs for the leaf-blower. useful energy output total energy input wasted energy output Fig. 12.2 Calculate the efficiency of the leaf-blower as a percentage. Show your working. efficiency = %
See it on the paper →