Electromagnetic Spectrum

Electromagnetic Spectrum

1. Remember: Giant Xylophones Usually Live In Music Rooms

2. Uses

   • Radiowaves
     • Lowest frequency
     • Communications, tele, radios
   • Microwaves
     • Cooking, satalite communication
   • Infrared
     • Remote control, cooking, communication
   • Visible light
     • Photography
   • Ultraviolet
     • Tanning beds
   • X-rays
     • Images of people's bodies
   • Gamma Rays
     • High frequency - dangerous
     • Destroy cancer cells, sterilize hospital surgery equipment

3. Facts

   • Waves transfer energy NOT matter
   • They increase in wavelength from gamma rays to radio waves
   • They travel in a vacuum (space) at the same speed as Light

4. Types

   • Longitudinal (Sound)
     • Oscillations are parallel
   • Transverse (Light)
     • Oscillations are perpendicular to the wave speed