Physics 173 Internet
Question of the Week
November 17 - November 21, 1997
Find The Exploratorium Science Museum's web site in San Francisco
using a major search engine. Browse through the site (or use the
search button found on the site's home page) until you find the
page titled "Ear Guitar." The page instructs you to build an ear
guitar using simple household activities. Do the activity
(building the ear guitar and performing the modifications which
the page describes). It might be helpful to find a classmate or
fellow Physics 173 student to perform the activity.
Once you have found the site and performed the activity
(building the guitar), do the following:
- identify the URL (address) of the page.
- describe the search path which you took to find the page
(see example description).
- discuss the contents of the page and the underlying physics
of the Ear Guitar in terms of the language of Physics 173. In
your discussion, make explicit reference to the equation for
the velocity of a wave on a string; identify the variable in
the equation which you modified in this activity. Describe
what you did to modify the variable and the influence of such
modifications on what your heard.
- Submit the Ear Guitar to your teacher. If you worked with
a friend, then submit the ear guitar with both names attached.
A buzzing mosquito near your ear makes a sound with an intensity
level of 40 dB. How many buzzing mosquitoes must there be in
order for the intensity level of the sound be 100 dB (which is
incidentally equal to the intensity level in the fifth row of a
typical Twisted Sister concert)?
South Physics Team -
4000 West Lake Ave
Glenview, IL 60025 - 1200
Page Maintained by: Tom Henderson
Last Updated: November 17, 1997