Skip to content

Course home

Sign up

2.2 Thermal properties and temperature

EasyMediumHard
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123
Question 80

A technician is designing a liquid-in-glass thermometer. The following is a list of properties of the thermometer that she is considering:

sensitivityrangespeed of responselinearity \text{sensitivity} \quad \text{range} \quad \text{speed of response} \quad \text{linearity} sensitivityrangespeed of responselinearity
a.

(i)

  1. Which one of these properties is affected by the volume of the bulb of the thermometer?
  2. Explain your answer.

(ii)

  1. Which property is affected by the thickness of the glass wall of the bulb?
  2. Explain your answer.
[4]
b.

The thermometer is to be used to measure meteorological temperatures in a polar region between −55∘C-55^\circ\text{C}−55∘C and 10∘C10^\circ\text{C}10∘C. The technician considers using mercury (freezing point −39∘C-39^\circ\text{C}−39∘C) or coloured ethanol (freezing point −114∘C-114^\circ\text{C}−114∘C) as the liquid.

(i) Write down which liquid would be suitable.

(ii) Give two reasons for your answer.

[3]
Markscheme

2.2 Thermal properties and temperature Questions

  1. IGCSE
  2. /Physics
  3. /2.2 Thermal properties and temperature

528 exam-style questions on CIE IGCSE Physics 2.2 Thermal properties and temperature, covering 2.2.1 Thermal expansion of solids, liquids and gases, 2.2.2a Internal energy and temperature, 2.2.2b Specific heat capacity, 2.2.3a Melting, boiling, condensation and solidification, 2.2.3b Evaporation, and 2.2.3c Cooling by evaporation. Each one has a worked solution and a mark scheme showing where the marks go.

Question bank