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 2.4 m.
2.92 m/sec
0.34 m/sec
9.4 m/sec
16.8 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?
8.4 meters
2.40 meters
4.80 meters
1.20 meters
omit
Question 3
A string vibrates at 610 Hz with a wavelength of 2.4 meters. If the wavelength is shortened by 0.6 meters, what is its new frequency?
1017 Hz
2440 Hz
458 Hz
813 Hz
omit
Question 4
A fundamental fixed-fixed standing wave is generated along a 0.7-meter string when its frequency is 610 Hz. What would be the frequency of a 3rd harmonic wave generated along this same string?
854 Hz
203 Hz
915 Hz
1830 Hz
omit
Question 5
The speed of sound inside a 0.78-meter long open-closed tube (fixed-free) is 345.4 m/sec.What are its first three resonate frequencies?
111 Hz, 221 Hz, 332 Hz
111 Hz, 332 Hz, 554 Hz
221 Hz, 664 Hz, 1107 Hz
221 Hz, 443 Hz, 664 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?
221 Hz, 443 Hz, 664 Hz
111 Hz, 332 Hz, 554 Hz
221 Hz, 664 Hz, 1107 Hz
111 Hz, 221 Hz, 332 Hz
omit
Question 7
The lowest frequency that a conch shell is able to produce is 221 Hz, if the resonating dimension is 0.39 meters and the wave speed is 345.4 m/s, what type of standing wave is being created?
cannot be determined
fixed-free
fixed-fixed
free-free
omit
Question 8
What is the speed of sound in a chamber (fixed-free) that is 2.4 meters deep if sound is resonating at 610 Hz?
366 m/sec
1098 m/sec
1464 m/sec
732 m/sec
Copyright © 2007-2019
William A. Hilburn
All rights reserved.
Application Programmer
Mark Acton