Topic: Class Notes- Electromagnetic Waves Dec. 4 & 7, 2009

• Topic: Electromagnetic Waves
  
  
  Notes
  
  Electromagnetic waves are waves that do not require matter to carry energy.
  Transverse waves
  
• Produced by the motion of electrically charged particles.
  
• Can travel through medium such as a solid, liquid, or gas.
  
• Can travel through outer space or in a vacuum where no matter exists.
  
  
  
  Long wavelength – low frequency
  Examples: Radio, microwave, infrared
  
  
  Short wavelength – high frequency
  Examples: visible light, ultraviolet, x-rays, gamma rays

Electromagnetic spectrum