Wa-8 Pressure of Sound

Aim

To demonstrate that sound produces pressure on the wavefront.

Apparatus

  • Signal Generator
  • P.A. Amplifier
  • Horn Loud Speaker
  • Perspex Tube
  • Foam Disc

Pressure of Sound 1 Pressure of Sound 2

Pressure of Sound Setup.

Description

A foam disc can be levitated inside a perspex tube. Increasing the volume will increase the height at which the foam disc levitates. Thus, demonstrating sound pressure exists as air pressure wave front.

Video

Safety Notes

Pressure of Sound SOP-17