Chemistry / Unit 5 Chem 0772 short lesson, about 20 seconds
The Electromagnetic Spectrum
Captions available
The idea
The electromagnetic spectrum orders all electromagnetic radiation by wavelength and frequency, from long-wavelength radio waves to short-wavelength gamma rays.
In practice
Visible light occupies only a narrow band within this spectrum, sandwiched between longer-wavelength infrared and shorter-wavelength ultraviolet radiation.
Where people slip
Every region of the spectrum, radio through gamma, is still electromagnetic radiation — only the wavelength and resulting energy differ.
Your place on the trail
Every lesson rests on earlier ones and opens later ones. Tap any to jump.
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