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>End-of-chapter questions

David Sang Solutions for Chapter: Thermal Properties of Matter, Exercise 7: End-of-chapter questions

Author:David Sang

David Sang Physics Solutions for Exercise - David Sang Solutions for Chapter: Thermal Properties of Matter, Exercise 7: End-of-chapter questions

Attempt the free practice questions on Chapter 10: Thermal Properties of Matter, Exercise 7: End-of-chapter questions with hints and solutions to strengthen your understanding. Cambridge IGCSE® Physics Coursebook Second Edition solutions are prepared by Experienced Embibe Experts.