waves

waves

1. mechanical

   • mechanical waves move through a medium or a substance.
   • mechanical waves must move through a medium, such as the metal tracks air or water. they cannot travel through a vacuum-like space
   • you must have particles to transfer energy so without particles, there can be o mechanical waves, and thus no waves

2. electromagnetic

   • electromagnetic waves propagate energy forward, but do not use a medium.
   • in all waves energy travels forward
   • waves propagate in different shapes, depending on if the are mechanical or elctromagtenical
   • higher frequency contain more energy so gamma rays have the most energy and radio waves have the most energy and radio waves have the least