Sound waves

Sound waves

1. What are sound waves ?

   • Sound waves are particles vibrating.
   • Compression
   • Sound is longitual pressure waves that travel through ealstic media
     • In a longitual wave particles oscillate
   • Rarefaction
   • Vibrating Particles
   • Frequuency
   • Rarefaction is were the lines are far apart and compression is were the lines are close together.

2. Frequency

   • Number of waves that pass a point in a second
   • HERTZ*

3. Amplitude

   • The difference between maximum displacement and minimum displacement of particle in a sound wave,
   • vibration
   • measured in metres
   • The maximum amount of vibration, measured from middle position of the wave in metres

4. The shorter the frequency the shorter the wave

   • The amount of sound that has been in decibels
   • vacuum

5. Longitual wave

   • Where the direction of vibration is the same as that of the wave
   • vibrating particles
   • volume

6. When sound wave impacts a surface different things:

   • The sound can be absorbed by the surface.
   • The sound can be transmit through the surface .
     • wave-length
   • The sound can be reflect off the surface
     • pitch
     • decibels
   • a mix of any of the above
     • waves-sound
   • echo

7. Volume + Pitch +Echo

   • Volume: How loud or quiet the sound wave is.
   • Pitch: How low or high the sound wave is .
     • Echo: Reflection of sound waves from a surface back to the listener.