The diagram shows two liquid-in-glass thermometers. Which has the greater range? Explain how you can tell.

Given, The maximum temperature that can be measured by A , T A m a x = 110 ° C The minimum temperature that can be measured by A , T A m i n = - 10 ° C The maximum temperature that can be measured by B , T B m a x = 50 ° C The minimum temperature that can be measured by B , T B m i n = - 10 ° C The range of a thermometer is the difference between the maximum and minimum temperatures that the thermometer can read. The range of thermometer A , R A = T A m a x - T A m i n ⇒ R A = 110 - - 10 ⇒ R A = 120 ° C The range of thermometer B , R B = T B m a x - T B m i n ⇒ R B = 50 - - 10 ⇒ R B = 60 ° C Therefore, the A has the greater range.

The diagram shows two liquid-in-glass thermometers. Which is more sensitive? Explain how you can tell.

The sensitivity of a thermometer refers to the minor temperature transform that can be detected or considered. The sensitivity of a thermometer is defined as the increase in the length of the mercury column per unit increase in temperature. From the figure, it is clear that each degree is a wider interval on the scale in thermometer B , so smaller changes can be measured. Hence, B is more sensitive.

E M B I B E

Cambridge IGCSE® Physics Coursebook Second Edition>Chapter 10 - Thermal Properties of Matter>Questions>Q 10.13

EASY

Upper Secondary: IGCSE

IMPORTANT

Earn 100

Explain why the definition of specific latent heat of fusion includes the phrase "at its melting point".

Important Questions on Thermal Properties of Matter

MEDIUM

Upper Secondary: IGCSE

IMPORTANT

Cambridge IGCSE® Physics Coursebook Second Edition>Chapter 10 - Thermal Properties of Matter>Questions>Q 10.14

It takes

4500 J

to turn

2 g

of water at

100 ° C

into steam. Calculate the latent specific heat of vaporization of water.

MEDIUM

Upper Secondary: IGCSE

IMPORTANT

Cambridge IGCSE® Physics Coursebook Second Edition>Chapter 10 - Thermal Properties of Matter>Questions>Q 10.15

Why the specific latent heat of vaporisation of water is much greater than the specific latent heat of fusion of ice.

EASY

Upper Secondary: IGCSE

IMPORTANT

Cambridge IGCSE® Physics Coursebook Second Edition>Chapter 10 - Thermal Properties of Matter>End-of-chapter questions>Q 1

Thermometers are used to measure temperature. Explain how a liquid-in-glass thermometer works.

EASY

Upper Secondary: IGCSE

IMPORTANT

Cambridge IGCSE® Physics Coursebook Second Edition>Chapter 10 - Thermal Properties of Matter>End-of-chapter questions>Q 1

Thermometers are used to measure temperature. Every temperature scale must have at least two fixed points. What are the fixed points on the Celsius scale?

MEDIUM

Upper Secondary: IGCSE

IMPORTANT

Cambridge IGCSE® Physics Coursebook Second Edition>Chapter 10 - Thermal Properties of Matter>End-of-chapter questions>Q 2

The diagram shows two liquid-in-glass thermometers.

Question Image