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Chapter 15 Opening
This page last modified on 4/7/08.
Monday, March 31:
A sound wave pattern is shown below. The
wavelength is closest to _____. (Use the cm-rule provided
on the diagram.)
Tuesday, April 1:
table at the right represents the deciBel level for
several sound sources. Use the table to make comparisons
of the intensities of the following sounds. The Smashin'
Pumpkins concert is _____ times more intense than ...
(Enter an integer rounded to the nearest whole number.)
a. ... the Battle of the Bands.
b. ... the average factory.
c. ... normal speech.
d. ... the GBS library.
Wednesday, April 2:
Define resonance and describe one example of
resonance (classroom demonstration or other example)
Thursday, April 3:
What length must a closed-end air column be to
produce a fundamental frequency of 256 Hz? Assume a speed
of sound of 343 m/s.
Friday, April 4:
Diagram A shows the standing wave pattern
created in open-end air column when it is vibrated at 360
Hz. Determine the vibrational frequency (in Hertz) which
would be required of the same air column to produce the
standing wave pattern shown in Diagram B.
Monday, April 7:
From textbook - page 419, #25
A violin sounds a note of F sharp, with a pitch of 370
Hz. What are the frequencies of the next three harmonics
produced with this note?
Tuesday, April 8:
Wednesday, April 9:
From textbook - page 419, #27
Why do various instruments sound different even when
they play the same note?
Thursday, BBB 10:
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