A student wishes to check the calibration of the lower fixed point on a Celsius liquid-in-glass thermometer.
What should the student do to check this point?
Place the bulb in a beaker of ice and salt.
Place the bulb in a beaker of pure melting ice.
Place the bulb in a beaker of boiling pure water.
Place the bulb in a beaker of cold tap water.
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.