Waves

Waves

1. Mechanical

   • Moves through a medium or substance
     • Sound waves move on air or ripples.
     • Pond waves move through the water.
     • Cant travel through space
     • Can move on solid, liquid, or gas.
   • All sounds are Mechanical Waves
   • Vibrations are a type of mechanical Waves
   • mechanical waves move through metal tracks, air, or water.
   • It comes in 3 shapes
     • Lingitudial
     • Transverse
     • surface

2. Electromagnetic

   • Electromagnetic Waves are light waves.
     • BUT they can be visible or invisible.
     • They can come in all forums, they depend on how spread the waves peak are.
   • Some examples are:
     • radio
     • Cell phone
     • X-ray
     • microwaves
     • intensive ganma
   • no medium is needed
   • It only has one shape
   • Electromagnetic Spectrum
     • types of radiation released from stars+sun
     • long line
     • radio waves
       • longest wavelength/ lowest frequency
       • length of a football field
     • microwaves
       • + energy
       • shorter wavelength
       • high frequency
     • infrared light
       • sun fire
       • invisible but felt as heat
     • visible light
       • between infrared and ultraviolet
     • red light
       • lowest frequency
         • longest wavelength
     • ultra violet
       • vitamin D
       • too much light=sunburn
     • x-rays
       • pass tissue not bone
     • gamma rays
       • shorter, + frequency, small waves