during block day, Wed/Thurs we did 4 sound labs.
They used the computer interface (Lab Pro running Logger Pro).
We looked at:
1) the speed of sound using echoes in a long tube.
2) the wave patterns of tuning forks, captured with the microphone. We counted and measured the frequency, and compared it to the actual frequency of the tuning fork.
3) beat frequency, the pattern created by the interference of two tuning fork sound waves (see previous blog for more info).
4) the tones used by a touch-tone telephone to dial a phone number.
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