🚀 go-pugleaf

>I am planning a resource file to teach a grade nine unit about the
>physics of sound.  Any lesson plans, resource ideas would be
>appreciated.  You could forward them to me at i74n@jupiter.sun.csd.unb.ca


First, try looking at Paul Hewitt's conceptual physics, and then try your
best to get your hands on an oscilloscope, a signal generator, and some
tuning forks. If you can get a large graduated cylinder (about 1 liter),
you can demonstrate standing waves in a water filled graduated cylinder,
with a glass tube inside the cylinder. Try running the tuning forks into an
amp into the scope to study waveforms, then try playing a classical tape
(cellos, pianos are great) into the amp, then into the scope. I find the
radio into the scope tuned to a good station is a good setup. Finally, test
the resonance idea by hitting one fork near another and looking for
resonance in the second.

Let me know if I can help.

aloha
Bill
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Bill Wiecking
Honolulu Hawaii
Bill@ahi.pbrc.hawaii.edu
Pacific Biomedical Research Center
Bekesy Lab of Neurobiology
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