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Resonance - Research Paper

Resonance

: " The property whereby any vibratory system responds with maximum
amplitude to an applied force having the a frequency equal to its own."
In english, this means that any solid object that is struck with a sound
wave of equal sound wave vibrations will amplitude the given tone. This would
explain the reason why some singers are able to break wine glasses with their
voice. The vibrations build up enough to shatter the glass. This is called
RESONANCE.
Resonance can be observed on a tube with one end open. Musical tones can be
produces by vibrating columns of air. When air is blown across the top of the
open end of a tube, a wave compression passes along the tube. When it ...

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produced in the tube. This creates a pure
tone.
We can use this knowledge of one fourth wavelength to create our own
demonstration. It does not only have to be done using wind, but can also be
demonstrated using tuning forks. If the frequency of the tuning forks is known,
then v=f(wavelength) can find you the length of your air column.
Using a tuning fork of frequency 512 c/s, and the speed of sound is
332+0.6T m/s, temperature being, 22 degrees, substitute into the formula.

Calculate 1/4 wavelength
V=f(wavelength)
wavelength=V/f
=345.2 (m/s) / 512 (c/s)
=0.674 m/c
1/4 wave. =0.674 (m/c) / 4
= 0.168 m/c

Therefore the pure tone of a tuning fork with frequency 512 c/s in a temperature
of 22 degrees would be 16.8 cm. The pure tone is C.
If this was done with other tuning forks with frequencies of 480, 426.7,
384, 341.3, 320, 288, and 256 c/s then a scale in the key of C would be produced.

...

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PAPER DETAILS

Added: 8/1/2004 11:27:58 AM
Category: Science & Nature
Type: Premium Paper
Words: 524
Pages: 2

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