# Physics instrument McCammon, Arens, Tamas, & Eddy - PVC...

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PVC “Xylophone” Built by Alexander Arens, Amos Eddy, Samuel Tamas, and William McCammon

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Instrument Diagram What does each part do? When the pipes are struck, they produce a tone inversely proportional to their length, with the highest tones being produced from the shortest pipes.
Sound Production - Describe how the instrument makes sound. Where and how is the sound wave initiated? The instrument makes sound by being struck with any stick-like instrument at the top of the open pipe, causing the pipe and the air around it to resonate and send a wave down and through the pipe at a frequency inversely proportional to the length of the pipe. - What does the sound wave look like inside and as it leaves your instrument? When the sound wave is in the pipe and exiting it, it looks like a stretch of DNA, but with longer/less oscillations in short pipes, and more small waves in a longer pipe. - MATHEMATICALLY determine the frequency and wavelength range of your instrument . 2395m/s/1174.61Hz= .0002039 m .5853m/s/196Hz= .00299 m .2395 m/s//.0002039 m=1174.61Hz .5853m/s/.00299 m=196Hz

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• Fall '19
• Wavelength, Alexander Arens, Samuel Tamas

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