Waves

Waves

1. Disturbance that carries energy from place to place.

2. Types of waves

   • Electromagnetic waves
     • They don't need matter called (“medium”) to be able to move
       • Examples: icrowaves, ultraviolet rays, X-rays, etc...
   • Mechanical waves
     • They need matter called (“medium”) to be able to move
       • Transverse waves
         • The medium moves at right angles to the direction of the wave
         • Parts of the wave
           • Crest and trough
           • Compression and rarefaction
       • Longitudinal waves
         • the medium moves back and forth in the same direction as the wave