the electromagnetic spectrum - boardworks.co.uk electromagnetic...visible light is detected by our...
TRANSCRIPT
Radio waves have the longest wavelengths. Uses: communications and broadcasting.
Microwaves have a shorter wavelength than radio waves. Uses: mobile phones, radar and cooking.
Infrared is given off by hot objects. Uses: heating and remote controls.
Visible light is detected by our eyes, allowing us to see. Uses: optical fibre communications and sight.
Ultraviolet radiation is absorbed by some materials, such as skin. Uses: tanning beds and security marking.
Gamma rays have the shortest wavelengths. Uses: sterilising medical equipment and cancer treatment.
X-rays pass through most materials. Uses: medical imaging and airport security screening.
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Learn more about the electromagnetic spectrum with Boardworks Science for Years 7-10. Visit www.boardworks.co.uk/australiascience or call us at +44 845 0 300 400.
The Electromagnetic Spectrum
frequency, f (Hz)
wavelength, λ (m) increasing photon energy
long wave
short wave
UHFVHFinfrared
visi
ble
light
X-rays gamma raysmedium waveradio waves
micro- waves UV
105
104
104
105
103
106
102
107
101
108
100
109
10-1
1010
10-2
1011
10-3
1012
10-4
1013
10-5
1014
10-6
1015
10-7
1016
10-8
1017
10-9
1018
10-10
1019
10-11
1020
10-12
1021
1022
10-13
10-14
1023
10-15