Energy Transfer by heating - Radiation (GCSE PHYSICS AQA HIGHER)

Radiation:
All objects give out and take in THERMAL RADIATION (infrared radiation).

THE HOTTER AN OBJECT IS, THE MORE INFRARED RADIATION IT EMITS.

INFRARED RADIATION is part of the ELECTROMAGNETIC SPECTRUM.

It has LONGER WAVELENGTHS than visible light and is INVISIBLE.  

Only INFRARED WAVES…