Page 132 - text book form physics kssm 2020
P. 132
Heat capacity of an object increases when the mass of the object increases. For example,
the water in a full kettle takes a longer time to boil compared to the water in a half-fi lled kettle.
Th is shows that water of bigger mass has a higher heat capacity compared to water of smaller mass.
Figure 4.8 shows several daily situations involving heat capacity.
Aft er being left to cool for some time, the soup Th e dashboard of a car has a lower
in a large bowl is hotter compared to the same heat capacity compared to the cushion.
soup in a small bowl. Absorption of heat energy from the Sun
causes the dashboard to experience a
higher rise in temperature compared to
the cushion.
Dashboard
Daily
Situations
Involving Heat
Capacity Cushion
At noon, there is a signifi cant diff erence in
temperature between cement court and grass.
Figure 4.8 Daily situations which involve heat capacityigure 4.8 Daily situations which involve heat capacity
F
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4.2.1
