Oscillations and Waves > Acoustics > Pitch
DCS# 3C20.25

COKE BOTTLE



APPARATUS
coke bottle
202-06-


DESCRIPTION
Blow across a bottle to produce sound.  Add water to change the pitch.  Show that the pitch is different if you strike it instead of blow across it.  Add seven more bottles, tuned to a major scale, and perform "jingle bells".