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2.2.1 Thermal expansion of solids, liquids and gases

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Question 1

A technician prepares an unmarked liquid-in-glass thermometer to measure temperatures between −20 ∘C-20\ ^\circ\text{C}−20 ∘C and 120 ∘C120\ ^\circ\text{C}120 ∘C.

a.

State the temperature of each of the standard fixed points used to calibrate the thermometer.

  • Upper fixed point = ........ ∘C^\circ\text{C}∘C
  • Lower fixed point = ........ ∘C^\circ\text{C}∘C
[2]
b.

Describe how the thermometer is placed to determine the position of its upper fixed point.

[2]
c.

Identify the physical property of the liquid that is used in this thermometer to indicate a change in temperature.

Select one option:

  • Change in electrical resistance
  • Thermal expansion of the liquid volume
  • Change in pressure of a constant volume of gas
  • Emission of thermal radiation
[1]
Markscheme

2.2.1 Thermal expansion of solids, liquids and gases Questions

  1. IGCSE
  2. /Physics
  3. /2.2.1 Thermal expansion of solids, liquids and gases

96 exam-style questions on CIE IGCSE Physics 2.2.1 Thermal expansion of solids, liquids and gases. Each one has a worked solution and a mark scheme showing where the marks go.

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