Question:What is electromagnetic radiation?
Electromagnetic radiation is the proper name for visible light, ultraviolet and infrared radiation.
There are seven types of electromagnetic radiation, which together form the Electromagnetic Spectrum.
Electomagnetic radiation is also called electromagnetic waves and is often shorten to EM radiation or EM waves.
NOT IN GCSE Electromagnetic radiation is composed of alternating electric and magnetic fields that travel through space at the speed of light; and can be represented as shown in the diagram.