All objects emit and absorb infrared radiation.
State how the intensity of the radiation emitted by an object changes as the temperature of the object increases.
Give the name of the type of electromagnetic radiation that is mainly emitted by objects at room temperature.
A metal poker is heated in a fire until it starts to glow.
State the colour of the poker when it first starts to glow.
Give the type of surface that is the best absorber of infrared radiation.
Give the type of surface that is the best reflector of infrared radiation.
96 exam-style questions on Edexcel GCSE Physics 5.3 Black body radiation, covering 5.3.1 Emission of radiation and temperature, 5.3.2 Radiation balance and constant temperature, and 5.3.3 The temperature of the Earth. Each one has a worked solution and a mark scheme showing where the marks go.