An engineer designs containers for drinks using different materials. One design uses a good thermal conductor, and another design uses a poor thermal conductor.
Which row correctly identifies a suitable use for each type of container?
Good thermal conductor: Keeping a hot drink hot; Poor thermal conductor: Cooling a hot drink down slowly
Good thermal conductor: Keeping a cold drink cold; Poor thermal conductor: Allowing rapid heat transfer to a cold drink
Good thermal conductor: Cooling a hot drink down quickly; Poor thermal conductor: Keeping a cold drink cold
Good thermal conductor: Preventing heat loss from a hot drink; Poor thermal conductor: Cooling a hot drink down quickly
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.