Helmholtz Resonators

Identifier: M: WM&S - 054

Two plastic bottles

Concept Overview

  1. Helmholtz Resonance
  2. Vibration of Air

Lecturer Procedure

Steps to FollowExpected Result
Blow across the top of the bottle.Sound is heard as air vibrates.
Add liquid to the bottle and blow across the top again.A different pitch is produced.