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Ability to do work Heat has the ability to do Temperature can only be used to

work. measure the degree of heat.

Measuring device No specific measuring Thermometer
equipment

Figure 1.4 A simple concept of temperature and heat

1.2 HEAT CAPACITY AND LATENT HEAT

The heat capacity of an object is the amount of heat required to increase the temperature of the
object by 1 °C. Each object has its own heat capacity. The heat capacity of an object depends on

the mass, type and temperature of the substance:

i) Mass of substance
Figure 6.5 below shows hot water being poured from a jug into a glass. The water in a jug

is hotter to the touch compared to the water in the glass. This is because the water in the
jug has a greater quantity of heat compared to the water in the glass.

Figure 1.5

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