Now playing video 1 of 9

Black body radiation

Description

Jonny Nelson introduces an animated explanation of black body radiation. All objects are continually absorbing and emitting infrared radiation, for example a heater (radiator). There are no known objects that are perfect at absorbing or emitting all the radiation, of every possible frequency, that may be directed at it. Some objects do, however, come close to this and these are referred to as “black bodies”.

Find out more about GCSE Physics

News image

Study Physics AQA, the personalised way

A new GCSE study plan that adapts as you progress, based on your performance, knowledge gaps and activity