CAIE IGCSE Physics 2.3.4 Consequences of Thermal Energy Transfer Topic Practice

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Covered syllabus points

2.3.4.1—Some of the basic everyday2.3.4.2—Applications/consequences where

Question 1

[Maximum number: 1]

Fig. 3.1 shows a small block of ice floating in a beaker of warm water.

Fig. 3.1

Fig. 3.1

Energy is transferred from the water to the block of ice.

State the name of the thermal process that transfers energy from the water to the ice.

Question 2

[Maximum number: 1]

Fig. 5.2 shows a cross-section of a double-glazed window in the room.

Fig. 5.2

Fig. 5.2

State the main methods of thermal energy transfer from the room to outside which are reduced by this type of window.
[Total: 8]

Question 3

[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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