(a)[3]
Explain what makes the fan rotate.
(b(i))[1]
Draw the bimetallic strip for $10^{\circ}\text{C}$.
(b(ii))[2]
State and explain what changes occur in the circuit as the room temperature rises above $40^{\circ}\text{C}$.
Physics 0625 · IGCSE · Thermal properties and temperature
Thermal properties and temperature — practice question
Fig. 7.1 shows a candle placed below a thin metal fan.