The Electromagnetic Spectrum Our eyes see only a small band of electromagnetic radiation: the band that we term visible light. There are many other forms of electromagnetic radiation. Collectively, they make up the electromagnetic spectrum. All electromagnetic radiation travels through space at the speed of light and through Earth’s atmosphere at virtually the same speed. Different forms of electromagnetic radiation differ in their frequency and wavelength. Higher Lower 10 12 10 6 10 13 10 7 10 14 10 8 10 15 10 9 10 16 10 10 10 17 10 19 10 11 10 18 10 20 AM RADIO MICROWAVE OVEN RADAR REMOTE CONTROL LIGHT BULB STARS X-RAY MACHINE RADIOACTIVE ELEMENTS FM RADIO FREQUENCY in Hz SOURCES COMMON NAME OF A WAVE “HARD” X-RAYS GAMMA RAYS “SOFT” X-RAYS MICROWAVES INFRARED ULTRAVIOLET Shorter Longer O H H 10 3 10 -5 10 -1 10 -9 10 1 10 -7 10 -3 10 -11 10 2 10 -6 10 -2 10 -10 1 10 -8 10 -4 10 -12 MOUNTAIN HOUSE PERSON BASEBALL FRUIT FLY CELL BACTERIA PROTEIN WATER MOLECULE ATOM WAVELENGTH in m EQUIVALENT SIZE OF A WAVELENGTH COURTESY NASA RADIO WAVES VISIBLE LIGHT ljcreate.com
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The Electromagnetic SpectrumOur eyes see only a small band of electromagnetic radiation: the band that we term visible light. There are many other forms of electromagnetic radiation. Collectively, they make up the electromagnetic spectrum.
All electromagnetic radiation travels through space at the speed of light and through Earth’s atmosphere at virtually the same speed. Different forms of electromagnetic radiation differ in their frequency and wavelength.
HigherLower
1012106 1013107 1014108 1015109 10161010 1017 10191011 1018 1020
AM RADIO MICROWAVE OVEN RADAR REMOTE CONTROL LIGHT BULB STARS X-RAY MACHINE RADIOACTIVE ELEMENTSFM RADIO
FREQUENCY in Hz
SOURCES
COMMON NAME OF A WAVE
“HARD” X-RAYS
GAMMA RAYS“SOFT” X-RAYSMICROWAVES
INFRARED ULTRAVIOLET
ShorterLonger
OHH
103 10-510-1 10-9101 10-710-3 10-11102 10-610-2 10-101 10-810-4 10-12
MOUNTAIN HOUSE PERSON BASEBALL FRUIT FLY CELL BACTERIA PROTEIN WATER MOLECULE ATOM
WAVELENGTH in m
EQUIVALENT SIZE OF A WAVELENGTH
COURTESY NASA
RADIO WAVES
VISIBLE LIGHT
ljcreate.com
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