The Electromagnetic Spectrum Flashcards

All 6 cards in this deck

Name the seven groups of the electromagnetic spectrum in order of increasing frequency.

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

Name the colours of the visible spectrum in order of decreasing wavelength.

Red, orange, yellow, green, blue, indigo, violet.

Which colour of visible light has the longest wavelength?

Red. (Violet has the shortest wavelength.)

Going from radio waves to gamma rays, what happens to wavelength and to frequency?

Wavelength decreases and frequency increases.

True or false? There are gaps between the groups of the electromagnetic spectrum.

False. The spectrum is continuous from radio waves to gamma rays; the groupings just name regions of it.

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

Visible light only — the eye detects just a limited range of frequencies.