K.C.S.E Physics Q & A - MODEL 1997PP2QN01

K.C.S.E Physics Q & A - MODEL 1997PP2QN01

Figure 1 shows a circuit diagram for controlling the temperature of a room.

​(i) State and explain the purpose of the Bimetallic strip
(ii) Describe how the circuit controls the temperature when the switch is closed
(b) A drinking glass 0.02 kg contains 200gms of water at 20°C. A mass of 0.04 kg of ice at 00 C is dropped into the glass. Determine the final temperature of the mixture. Specific heat capacity of glass = 670kg1K1. (Give your answer to correct ne decimal place)

ANSWERS