Standing Waves in a Vibrating Wire
Callie K
partner in crime: Miguel E
Date Performed: March 20, 2012
TA: Raziyeh Y
Abstract
This lab had two purposes. The first base was to determine the relationship in the midst of the length of a stretched telegram and the frequencies at which vibrancy occurs. The siemens was to study the relationship between the frequency of oscillation and the stress and linear dope absorption of the wire. In the first part we shew the resonance, frequency and wavelength of a wire and used this data to calculate the speed of the travelling waves. For first likable, our wavelength was 1.200 m, found by the formula ?=2L/n. In the second part we used tension and velocity to find mass slow-wittedness. For the first notch, with a tension of 10.3 N, the velocity was 86 m/s with a overall mass density of 0.018.
Discussion
In the lab we wanted to find the frequency at which resonance occurs on a stretched wire as well as look at the relationship between the frequency of vibration and tension and linear mass density of the wire.
For the first procedure, we increase the frequency until we found resonance, and recorded frequencies and nodes to calculate wavelength.
We did this for first harmonic through fourth harmonic, and then found the velocities using our measurements. In the first harmonic phase, our signal generated frequency was 36±1 Hz, wire frequency was 72 Hz, the number of nodes was 2 and the wavelength was 1.200 m. This was found by using the equation ?=2L/n.
For the second procedure, using a wire of a certain linear mass density we found the frequency of the wire as it oscillated in its perfect mode, or lowest resonance mode, as we increased the tension by moving the hanging mass to a higher(prenominal) notch. We performed this procedure again using a wire with a different linear mass density.If you want to get a full essay, order it on our website: Ordercustompaper.com
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