Fig. 5.1 shows an electrical heater placed at equal distance from two cans. The cans are the same size and each contains the same volume of water, and both start at the same temperature.
(a)[1]
Energy is transferred to the cans from the heater. State the name of this process.
(b)[3]
Compare the temperature of the water in the two cans at the end of the 20 minutes. Explain your answer.
(c)[3]
State what happened to the water on the bench and explain the process in terms of the water molecules.
Worked solution & mark scheme
This 7-mark question has a full step-by-step worked solution and mark scheme. One marking point: “radiation” …