Practice Problems
Assorted Resonance
omit
Question 1
What is the wave speed of a wave traveling through a long spring if its frequency is 7 Hz and its wavelength is 2.9 m.
2.41 m/sec
0.41 m/sec
9.9 m/sec
20.3 m/sec
omit
Question 2
Given that the spring in
Question 1
does not change, what would be the wave's new wavelength if the frequency of oscillation were to be doubled?
5.80 meters
10.2 meters
2.90 meters
1.45 meters
omit
Question 3
A string vibrates at 550 Hz with a wavelength of 2.9 meters. If the wavelength is shortened by 0.725 meters, what is its new frequency?
2200 Hz
733 Hz
759 Hz
413 Hz
omit
Question 4
A fundamental fixed-fixed standing wave is generated along a 0.7-meter string when its frequency is 550 Hz. What would be the frequency of a 3rd harmonic wave generated along this same string?
1650 Hz
770 Hz
825 Hz
183 Hz
omit
Question 5
The speed of sound inside a 0.78-meter long open-closed tube (fixed-free) is 348.4 m/sec.What are its first three resonate frequencies?
112 Hz, 335 Hz, 558 Hz
223 Hz, 447 Hz, 670 Hz
112 Hz, 223 Hz, 335 Hz
223 Hz, 670 Hz, 1117 Hz
omit
Question 6
If the tube in
Question 5
was now opened on both ends (free-free), what would be its new first three resonate frequencies?
223 Hz, 447 Hz, 670 Hz
112 Hz, 335 Hz, 558 Hz
112 Hz, 223 Hz, 335 Hz
223 Hz, 670 Hz, 1117 Hz
omit
Question 7
The lowest frequency that a conch shell is able to produce is 223 Hz, if the resonating dimension is 0.39 meters and the wave speed is 348.4 m/s, what type of standing wave is being created?
cannot be determined
free-free
fixed-free
fixed-fixed
omit
Question 8
What is the speed of sound in a chamber (fixed-free) that is 2.9 meters deep if sound is resonating at 550 Hz?
1196 m/sec
798 m/sec
399 m/sec
1595 m/sec
Copyright © 2007-2018
William A. Hilburn
All rights reserved.
Application Programmer
Mark Acton