A 1 kg block of iron requires less thermal energy to raise its temperature by 1 ∘C1\text{ }^\circ\text{C}1 ∘C than 1 kg of water.
Why is this?
Iron is a better conductor of thermal energy than water.
Iron is a poorer conductor of thermal energy than water.
Iron has a higher specific heat capacity than water.
Iron has a lower specific heat capacity than 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.