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britney
Posted on Tuesday, November 25, 2003 - 8:39 pm:   Edit PostDelete PostView Post/Check IPPrint Post   Move Post (Moderator/Admin Only)Ban Poster IP (Moderator/Admin only)

For a science project I would like to investigate which type of line carries sound waves the best, but I am unsure as to what materials I would need or how I would measure these sound waves. Any suggestions are appreciated thanks.
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Simon Quellen Field (Sfield)
Posted on Tuesday, November 25, 2003 - 10:57 pm:   Edit PostDelete PostView Post/Check IPPrint Post   Move Post (Moderator/Admin Only)Ban Poster IP (Moderator/Admin only)

What exactly do you mean by "line"?
Are you making a tin-can telephone?
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britney
Posted on Wednesday, November 26, 2003 - 5:21 pm:   Edit PostDelete PostView Post/Check IPPrint Post   Move Post (Moderator/Admin Only)Ban Poster IP (Moderator/Admin only)

No I'm not making a tin-can telephone. I was going to use wires but I'm not sure how I would test them in this experiment. Is there a better material to use?
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Simon Quellen Field (Sfield)
Posted on Wednesday, November 26, 2003 - 7:48 pm:   Edit PostDelete PostView Post/Check IPPrint Post   Move Post (Moderator/Admin Only)Ban Poster IP (Moderator/Admin only)

We are missing a lot of information about your project.

Wires carry electricity, not sound waves, so you are
obviously talking about varying the current in time
with the sound, as in a telephone.

But what do you mean by "best"?
How far the electricity can travel in the wire?
How much loss of volume there is in the wire?
How much distortion the wire introduces into the waveform?

The last question is much harder to measure than the first two.
The first two are related to the resistance of the wire.
You can look up the resistance for different wire sizes
on the Internet, or in a book from the library.

See here or here for examples.
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LISHA
Posted on Wednesday, October 27, 2004 - 2:35 pm:   Edit PostDelete PostView Post/Check IPPrint Post   Move Post (Moderator/Admin Only)Ban Poster IP (Moderator/Admin only)

I am not sure what to do on this project,
can you tell so more imformation.
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Anonymous
 
Posted on Friday, January 28, 2005 - 9:11 pm:   Edit PostDelete PostView Post/Check IPPrint Post   Move Post (Moderator/Admin Only)Ban Poster IP (Moderator/Admin only)

what type of lines carry sound waves best[frequancy,wavelength]
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OJ (Unregistered Guest)
Unregistered guest
Posted From: 24.46.249.251
Posted on Monday, November 20, 2006 - 5:00 pm:   Edit PostDelete PostView Post/Check IPPrint Post   Move Post (Moderator/Admin Only)Ban Poster IP (Moderator/Admin only)

what type of string carries sound waves more effectively?
the options are plastic canvas cord,craft cord, or plastic string?
Any suggestions would be great(include a reason please)
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Alex Roberts (Whoo_mythbusters)
Senior Member
Username: Whoo_mythbusters

Post Number: 182
Registered: 9-2005
Posted on Monday, November 20, 2006 - 6:26 pm:   Edit PostDelete PostView Post/Check IPPrint Post   Move Post (Moderator/Admin Only)Ban Poster IP (Moderator/Admin only)

Its called experimentation. Do it and then come back with the results.
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Michael (Michaelt)
Senior Member
Username: Michaelt

Post Number: 131
Registered: 12-2005
Posted on Tuesday, November 21, 2006 - 12:04 am:   Edit PostDelete PostView Post/Check IPPrint Post   Move Post (Moderator/Admin Only)Ban Poster IP (Moderator/Admin only)

The speed of sound depends on the elasticity and the density of the material, such that the square of the velocity is equal to the elasticity divided by the density.

V^2=E/D
or: V=(E/D)^.5


With this knowledge, you may be able to form a hypothesis that experimentation may bear out.
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ash (Unregistered Guest)
Unregistered guest
Posted From: 163.150.15.183
Posted on Tuesday, January 13, 2009 - 4:56 pm:   Edit PostDelete PostView Post/Check IPPrint Post   Move Post (Moderator/Admin Only)Ban Poster IP (Moderator/Admin only)

im starting today

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