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