A liquid-in-glass thermometer is constructed with a capillary tube of uniform bore, and has scale divisions that are spaced equally.
What physical property of the liquid is assumed to be constant over the thermometer's temperature range to justify equally spaced scale divisions?
State two modifications to the design of the thermometer that would increase its sensitivity (so that the spacing of the scale division marks is larger).
If the modifications in (ii) are implemented, what other modification to the thermometer is necessary to allow it to measure the same range of temperatures?
The expansion of a liquid is a physical property that can be used to measure temperature. State two other physical properties (specifying both the property and the material or device) that can be used to measure temperature.
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.