Heat And Temperature

Question 1

Temperature

Answer 1

Measure of the hotness or coldness of a body

Question 2

Thermometric properties

Answer 2

Physical property of a thermometer that changes measurably with temperature

Question 3

Examples of thermometric properties

Answer 3

Length of a column of mercury
Resistance of wire
Colour of liquid crystals

Question 4

Why do thermometers not agree

Answer 4

Different thermometers based on different thermometric properties gives different responses to a given rise rise in temperatures hence giving different values

Question 5

Heat

Answer 5

The transfer of energy from a hotter substance to a cooler substance because of the energy diff between them

Question 6

(Specific) heat capacity

Answer 6

Heat energy needed to change the temperature of (1kg of) an object by 1K

Question 7

Latent heat

Answer 7

When heat causes a change in state and not in temperature

Question 8

Specific latent heat

Answer 8

Amount of heat energy needed to change the state of 1kg of a substance without a change in temperature

Question 9

Heat pump

Answer 9

Takes energy from a cooler region and transfers it to a warmer region