A liquid-in-glass thermometer contains mercury inside a glass bulb and a narrow capillary tube. When the thermometer is placed in a beaker of hot water, the level of the mercury column rises.
Why does the mercury level rise?
Only the mercury expands.
Only the glass bulb expands.
The glass bulb expands more than the mercury.
The mercury expands more than the glass bulb.
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.