Soundwaves

Soundwaves

1. Types of waves

   • Transverse
     • Vibrations are at right angles to the direction of travel
   • Longitudinal
     • Vibrations along the same directions as the directions of travel

2. vibrations of air particles

   • speed
     • Faster in liquids and solids than gases
       • as particles are closer together
     • Cannot travel in a vaccum
       • No particles to vibrate
     • Frequency
       • How many waves per second
     • Amplitude
       • Peak
       • Trough
       • The biggger the amplitude the bigger the valume

3. Echoes

   • reflections of soundwave