Lab Six

# Lab Six - 321.04 Hz 383.30 Hz Fundamental Frequency from...

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Lab Six Sound Waves and the Principle of Superposition Purpose: In this lab, our goals are to use a microphone to analyze the frequency components of turning forks and crystal wine glasses and to record overtones produced with the tuning fork. From this we would like to observe and understand the phenomenon of beats. Finally, we would like to perform an experimental verification of the superstition principle so that we can fully understand this principle by the end of this lab. Data and Calculations: Part One: Tuning Fork One Tuning Fork Two Frequency Stamped on Tuning Fork 320 Hz 384 Hz Period from Waveform 0.00305 Seconds 0.00265 Seconds Frequency from Waveform 327.87 Hz 377.35 Hz Frequency from Curve Fit 319.74 Hz 382.92 Hz Frequency from FFT Graph

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Unformatted text preview: 321.04 Hz 383.30 Hz Fundamental Frequency from FFT 321.04 Hz 383.30Hz Overtone Frequency from FFT 1972.66 Hz 2364.50Hz Part Two Volume of Glass Water (mL) Number of Cycles First Maximu m (Seconds) Last Maximu m (Seconds) Change in Time (Seconds) Period (Seconds) Calculate d Frequenc y (Hz) Frequenc y from FFT (Hz) 200mL 42 0.0013 0.0495 0.0482 0.001147 871.37 849.61 125mL 53 0.0009 0.0497 0.0488 0.000921 1086.07 1065.06 Number of First Last Change in Beat Period Calculated Amplitude Maxima Maximum (Seconds) Maximum (Seconds) Time (Seconds) (Seconds) Beat Frequency (Hz) 5 0.0007 0.0496 0.0489 0.00489 204.50 From graph beat frequency should be 1067.50-852.66 = 214.84 Hz...
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Lab Six - 321.04 Hz 383.30 Hz Fundamental Frequency from...

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