electromagnetic waves

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4 Terms

1
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what are electromagnetic waves

these are traverse waves Their vibrations or oscillations are changes in electrical and magnetic fields perpendicular to wave travel

2
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what can all electromagnetic waves do?

  • transfer energy as radiation from source of waves to an absorbed

  • can travel through a vacuum such as space

    • travel at same speed through a vacuum through the air

3
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In order name the 7 distinct group electromagnetic waves can be categorised in (low to high)

  • radio waves

  • microwaves

  • infrared radiation

  • visible light

  • ultraviolet

  • x-rays

  • gamma rays

4
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what are the factors of waves in the lower electro magnetic spectrum as well as those in the upper

  • lower = long wavelength, low frequency, low energy

  • upper = very short wavelength, high frequency, high energy