Physics Help - Sound, Frequency, Resonance, blabla

Rip the Jacker

Diamond Member
Dec 29, 2004
5,415
1
76
So i finally made my device. A ghetto rectangular string instrument of some sort...

Pics of how it LOOKS like :

http://ipodtut.com/physics/instrument.gif
http://ipodtut.com/physics/instrument1.gif
http://ipodtut.com/physics/instrument2.gif

---Anyway, It's a rectangular wooden block with nails, fishing line, and that thing that tightens up the fishing lines (in instrument2.gif --> the bottom thing thats found in violins, etc).

CAN SOMEONE CONFIRM THIS

The instrument I made is similar to that of a violin but different because it?s in a rectangular shape. Without the block of wood, the string being plucked would make a weak sound. But when the block of wood is added, the sounds resonate and there?s more amplitude.
When I pluck at the string, the vibration creates compression waves in the air that result in sound, according to the frequency of the waves. The frequency can be changed slightly by adjusting the tension of the string (in this case you would have to wrap the line tighter around the nail).

The wavelength is twice the length of the string. The shorter the wavelength, the higher the frequency tone. [/b]
 

Rip the Jacker

Diamond Member
Dec 29, 2004
5,415
1
76
So is this correct?

The instrument I made is similar to that of a violin but different because it?s in a rectangular shape. Without the block of wood, the string being plucked would make a weak sound. But when the block of wood is added, the sounds resonate and there?s more amplitude.
When I pluck at the string, the vibration creates compression waves in the air that result in sound, according to the frequency of the waves. The frequency can be changed slightly by adjusting the tension of the string (in this case you would have to wrap the line tighter around the nail).

The wavelength is twice the length of the string. The shorter the wavelength, the higher the frequency tone.
 

MrDudeMan

Lifer
Jan 15, 2001
15,069
94
91
the segment length (node to node) increases by the square root of the tension. i just did this lab.