Waves

Waves

1. Mechanical waves

   • All types of sound
     • Includes music and any language,
   • Mechanical waves move through a medium
     • The medium doesn't have to be a liquid or gas.
     • Mechanical waves propagate through solids too.
   • Mechanical waves must move through a medium
     • Such as the metal tracks, air or water.
   • Mechanical waves have three distinct shapes

2. Electromagnetic waves

   • Electromagnetic waves are light waves,
     • It doesn't need to be light we see.
   • Light waves come in all forms depending on how spread out the wave peaks are.
   • Electromagnetic waves only have one shape.
   • Lamps, cellphone towers, microwaves are all examples of things that transmit electromagnetic waves.