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 bubble solution
202-21-C
mirror
202-21-C5
tall ringstand
201A
DESCRIPTION
Dip the bell of the bugle into
the bubble solution. Playing the bugle does not burst
the bubble, showing that the vibration and not the bulk motion
of the air transmits the sound.
This also shows the volume of air
required to blow a bugle.
NOTES
The soap solution should
be a few centimeters deep in the pan.
Mount the mirror so the
bugler can see the end of the bugle, in case the bubble
bursts.
