CAIE IGCSE Physics Convection in Liquids and Gases

Practise selecting convection as the main thermal transfer method through water or air and distinguish fluid circulation from conduction and radiation.

Exam points

select convection for thermal transfer throughout water heated or cooled at one region
select convection for energy carried through room or road air by moving fluid

[Maximum number: 1]

Fig. 4.1 shows a heater used to warm the air in a room.

Fig. 4.1

State the main method of thermal energy transfer throughout the air in the room.

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2.3.2.1—Convection is an important method of question 1