A liquid-in-glass thermometer contains a liquid in a bulb connected to a narrow capillary tube.
State the physical property of the liquid that varies with temperature to indicate the scale on this type of thermometer.
Thermometer Y has a capillary tube with a smaller internal diameter (narrower bore) than Thermometer X, but is otherwise identical. State and explain how the sensitivity of Thermometer Y compares with the sensitivity of Thermometer X.
State and explain one modification that can be made to the design of Thermometer X to increase its measurement range.
Liquid-in-glass thermometers have a limited temperature range and cannot be used to measure extremely high temperatures, such as 1400∘C1400^\circ\text{C}1400∘C.
State a physical property which varies with temperature in a thermometer that is suitable for measuring a temperature of 1400∘C1400^\circ\text{C}1400∘C.
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.