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Electromagnetic Waves. Electromagnetic Waves. All electromagnetic waves travel at the same speed through space (the speed of light) Gamma rays, X-rays, Ultra-violet waves, Light, Infra-red rays, Microwaves, and Radio waves are all electromagnetic waves with different wavelengths
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Electromagnetic Waves Electromagnetic Waves • All electromagnetic waves travel at the same speed through space (the speed of light) • Gamma rays, X-rays, Ultra-violet waves, Light, Infra-red rays, Microwaves, and Radio waves are all electromagnetic waves with different wavelengths • Some substances absorb EM waves, some reflect them and others transmit them
Electromagnetic Waves Electromagnetic Waves
Radio Waves Radio waves
Radio Waves Radio waves
Microwaves Microwaves
Microwaves Microwaves
Infrared radiation Infrared radiation
Visible light Visible light
Endoscope Endoscope
Dangerous radiation Dangerous radiation • X-rays and Gamma rays pass through soft tissues but some is absorbed by cells • High doses of UV rays, X-rays and Gamma radiation can kill cells. Smaller doses can causes cells to become cancerous
Ultra-violet radiation Ultra-violet radiation
X-rays X-rays
Making X-rays Making X-rays
Gamma radiation Gamma radiation
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