Four students are asked to state and explain the relative magnitudes of the thermal expansion of solids and liquids.
Which student is correct?
Liquids expand more than solids because the molecules in a liquid are in continuous motion.
Liquids expand more than solids because the attractive forces between molecules are weaker in liquids.
Solids expand more than liquids because the molecules are closer together in solids.
Solids expand more than liquids because the molecules in a solid are held in a fixed, regular pattern.
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.