CAIE IGCSE Physics Everyday Thermal Applications

Practise explaining everyday heating and insulation choices by identifying conduction, convection or radiation and linking each design feature to transfer rate.

Exam points

choose a conducting pan base and insulating handle, then justify both material properties
explain how a lid, trapped air or double glazing reduces convection or conduction
justify black absorber, metal pipe and insulation choices in a solar-water panel

[Maximum number: 3]

A student carries out experiments on the cooling of the hot drink described in (a), with and without the holder in place. He finds that the holder only reduces the rate of cooling slightly.

Suggest and explain another action that reduces the rate of cooling more effectively. suggestion
explanation

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2.3.4.1—Some of the basic everyday question 1