electromagnetic spectrum Flashcards
what are the radiation types in order?
1) radio waves
2) micro waves
3) infra red
4) visible light
5) ultraviolet
6) x-rays
7) gamma rays
what are radio waves produced by?
electronic circuit oscillations
what are some effects of radio waves?
damage the lens of the eye by heating
cataracts
what are some uses of radio waves?
communication
radio
TV
satellites
what are micro waves produced by?
microwave ovens
what are some effects of micro waves?
cancer
burns
what are some uses of micro waves?
radio astronomy
radar
communications
what are infra red waves produced by?
heaters
radiators
what are some effects of infra red waves?
opacity of the lens (gradual)
eye redness and swelling
what are some uses of infra red waves?
to heat things up
what are some dangers of infra red waves?
cancer
cataracts
what is visible light produced by?
the sun
what are some effects of visible light?
able to see things better
what are some uses of visible light?
to see things for photography
what are some dangers of visible light?
burns
blindness
eye problems
what is ultraviolet produced by?
the sun
what are some effects of ultraviolet?
skin cancer
what are some uses of ultraviolet?
medical and forensic photography
disinfection
medical therapy
what are some dangers of ultraviolet?
skin cancer
what are x-rays produced by?
x-ray machines
what are some effects of x-rays?
cancer
what are some uses of x-rays?
to see bones/tissue for fractures
kills cancer cells
what are some dangers of x-rays?
cancer causing
what are gamma rays produced by?
changes in the nucleus of an atom
what are some effects of gamma rays?
can cause ionisations that damage tissues and DNA
what are some uses of gamma rays?
kills cancer cells
what are some dangers of gamma rays?
cancer
cataracts
