A glass bottle containing hot tea is sealed and placed in a vacuum chamber. The thermal energy from the tea passes through the solid glass wall of the bottle to its outer surface, and then exits the outer surface into the vacuum.
How is the thermal energy transferred through the glass wall and then into the vacuum?
by conduction then convection
by conduction then radiation
by convection then radiation
by radiation then convection
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.