Oscillations
and Waves > Transfer of Energy in Waves
DCS# 3B30.45
BUGLE AND SOAP
BUBBLE
APPARATUS
bugle
202-06-B
dish
202-21-C
soap solution
202-21-C
mirror
101-06-E1
tall ringstand
201A
DESCRIPTION
Bell of bugle is dipped in bubble
solution.
Playing bugle does not burst bubble, showing that the vibration, not
the
bulk motion, of the air transmits the sound.
This also shows the volume of air
required
to blow a bugle.
NOTES
Soap solution should be several
centimeters
deep in pan.
Mount mirror so that Bob can see the
end of
the bugle as he plays.
