When the temperature of a liquid-in-glass thermometer rises, both the solid glass bulb and the liquid inside it undergo thermal expansion. However, the liquid thread is observed to move to the right, indicating a higher temperature.
Why does this happen?
The solid glass expands more than the liquid.
The liquid expands more than the solid glass.
The solid glass contracts while the liquid expands.
The liquid expands while the solid glass does not expand.
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.