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Electromagnetic spectrum

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The Electromagnetic spectrum is a big name for types of radiation. The types are radio waves, microwaves, infrared, visible light, ultraviolet, x-rays, and gamma rays.

EM Spectrum Properties edit.svg

Types of EM radiation[edit | edit source]

Radio waves[edit | edit source]

Main article: Radio wave

Radio waves are the lowest energy waves. They are huge, they are as tall as buildings. They are used for radio and TV signals.

Microwave[edit | edit source]

Main article: Microwave (EM spectrum)

Microwaves are mainly used for microwave ovens. Radar uses microwaves, not radio waves. They are much smaller than a radio wave.

Infrared[edit | edit source]

Main article: Infrared

Infrared rays are shorter than microwaves and used for thermographs. We can feel infrared sometimes. It is used for electrical heaters also.