Physics 0625 · IGCSE · Transfer of thermal energy

Transfer of thermal energy — practice question

Fig. 9.1 shows a beaker of water with an electric heating element inside it. The heating element is switched on.

(main)[5]

Explain how thermal energy is transferred through the water in the beaker. In your answer, use ideas about density and expansion.

Worked solution & mark scheme

This 5-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Water becomes warmer” …