Physics Unit 12 Sound: Demo- closed end pipe resonances

Relevance:  Glencoe Ch 15.3

Describing sound resonances in open and closed end pipes is one of the most difficult concepts to get across.

I start with board drawings, define nodes, antinodes.

{insert sketch here}

 

demo:  rod position determines tube length => resonance length = Lambda /2.

sound-closed-end-pipe-demo-1

 

 

sound-closed-end-pipe-2

 

 

sound-closed-end-pipe-3