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Electromagnetic Waves. Chapter 12 http ://school.discoveryeducation.com/lessonplans/interact/electromagneticspectrum.html. Electromagnetic Waves- waves created by vibrating electric charges, can travel through a vacuum or matter. have a wide variety of frequencies and wavelengths.

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electromagnetic waves

Electromagnetic Waves

Chapter 12

http://school.discoveryeducation.com/lessonplans/interact/electromagneticspectrum.html

slide2

Electromagnetic Waves- waves created by vibrating electric charges, can travel through a vacuum or matter.

    • have a wide variety of frequencies and wavelengths.
    • All matter contains charged particles that are always in motion, so ALL objects emit electromagnetic waves.
properties of electromagnetic waves
Properties of Electromagnetic Waves
  • Radiant Energy- Energy carried by an electromagnetic wave.
    • Makes you able to see and feel warmth.

Wave Speed- 300,000km/s “speed of light”

Travel slowest in solids, fastest in gases.

    • Photon- particle that explains how electromagnetic waves energy depends on frequency of the waves.
electromagnetic spectrum
Electromagnetic Spectrum
  • Range of Frequencies:

1. Radio

        • Microwaves
        • Radar
        • MRI’s
      • Infrared
      • Visible Light
      • Ultraviolet
      • X Rays and Gamma Rays