The Electromagnetic Spectrum Flashcards

All 5 cards in this deck

Name the seven groups of the electromagnetic spectrum in order from longest to shortest wavelength.

Radio waves, microwaves, infrared, visible light, ultraviolet, x-rays, gamma rays.

Across the electromagnetic spectrum, what happens to wavelength as frequency increases?

Wavelength decreases.
The spectrum is continuous from radio waves to gamma rays.

List the colours of the visible spectrum in order of increasing frequency.

Red, orange, yellow, green, blue, indigo, violet.
Red has the longest wavelength and lowest frequency.

Which part of the electromagnetic spectrum can the human eye detect?

Visible light only — our eyes detect just a limited range of frequencies.

True or false? Infrared has a higher frequency than ultraviolet.

False. Ultraviolet has the higher frequency; infrared sits on the longer-wavelength side of visible light.