A person holds an empty ceramic mug and pours hot tea into it. Why does it take a few seconds before their hand starts to feel hot?
Ceramic is a poor thermal conductor.
Tea is a poor thermal conductor.
Ceramic is a better thermal conductor than tea.
Tea is a better thermal conductor than ceramic.
301 exam-style questions on CIE IGCSE Physics 2.3 Transfer of thermal energy, covering 2.3.1a Thermal conductors and thermal insulators, 2.3.1b Explaining thermal conduction, 2.3.2 Convection, 2.3.3a Thermal radiation, 2.3.3b Surface colour and texture, 2.3.3c Rate of emission and absorption of radiation, and 2.3.4 Consequences of thermal energy transfer. Each one has a worked solution and a mark scheme showing where the marks go.