6.6.2.4 uses and applications of electromagnetic waves Flashcards
What are radio waves used for
Television and radio
What are microwaves used for
Satellite communications, cooking food
What is infrared used for
Electrical heaters, cooks food, infrared cameras, remote controls, thermal imaging, night vision, motion sensing
What is visible light used for
Fibre optic communications, seeing/ taking photos or videos
What is ultraviolet used for
Energy efficient lamps and sun tannnig, security marking (fluorescence), fluorescent bulbs
What are X-rays used for
X-ray imaging, airport security (detecting illegal items etc)
What are the uses of gamma rays
Sterilising medical instruments/ treating cancer
What are dangers of radio waves
No known Danger
What are dangers of microwaves
Possible heat damage to internal organs
What are dangers of infra-red
Skin burning
What are dangers of visible light
Bright light can cause eye damage
What are dangers of ultraviolet
Eye damage, sunburn, skin cancer
What are dangers of X-rays
Kills cells, mutations, cancer
What are dangers of gamma rays
Kills cells, mutations, cancer,
What is the order of electromagnetic waves
Gamma rays, X-rays, ultraviolet, visible light, infra-red, microwaves, radio waves .