Waves & Radiation

Waves & Radiation

1. Waves

   • Longitudinal
     • Sound waves
   • Transverse
     • Light waves
   • Amplitude
   • Wavelength
   • Trough
   • Crest
   • Higher pitch=more waves
   • Lower pitch=less waves
   • Loud sounds=larger amplitude
   • Quiet sounds=smaller amplitude

2. Light

   • Travels at 3 x10,8 m/s
   • Angle of incidence
     • Equal to each other
   • Angle of reflection
   • Refraction
     • When light moves from one medium into another and changes speed
     • Sometimes causes change in direction

3. Electromagnetic Spectrum

   • Microwaves
   • Radiowaves
     • Longest wavelength
     • Lowest frequency
   • Infrared
   • Visible Light
   • Ultraviolet
   • X - Rays
   • Gamma Rays
     • Shortest wavelength
     • Highest frequency
   • All travel at 3 x10,8 m/s