Practice Problems
Assorted Resonance
omit
Question 1
What is the wave speed of a wave traveling through a long spring if its frequency is 9 Hz and its wavelength is 2.1 m.
0.23 m/sec
4.29 m/sec
11.1 m/sec
18.9 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?
2.10 meters
9.5 meters
1.05 meters
4.20 meters
omit
Question 3
A string vibrates at 353 Hz with a wavelength of 2.1 meters. If the wavelength is shortened by 0.525 meters, what is its new frequency?
471 Hz
672 Hz
1412 Hz
265 Hz
omit
Question 4
A fundamental fixed-fixed standing wave is generated along a 0.9-meter string when its frequency is 353 Hz. What would be the frequency of a 3rd harmonic wave generated along this same string?
118 Hz
635 Hz
529 Hz
1059 Hz
omit
Question 5
The speed of sound inside a 0.63-meter long open-closed tube (fixed-free) is 343.6 m/sec.What are its first three resonate frequencies?
273 Hz, 818 Hz, 1363 Hz
273 Hz, 545 Hz, 818 Hz
136 Hz, 273 Hz, 409 Hz
136 Hz, 409 Hz, 682 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?
273 Hz, 818 Hz, 1363 Hz
273 Hz, 545 Hz, 818 Hz
136 Hz, 409 Hz, 682 Hz
136 Hz, 273 Hz, 409 Hz
omit
Question 7
The lowest frequency that a conch shell is able to produce is 273 Hz, if the resonating dimension is 0.315 meters and the wave speed is 343.6 m/s, what type of standing wave is being created?
fixed-fixed
free-free
cannot be determined
fixed-free
omit
Question 8
What is the speed of sound in a chamber (fixed-free) that is 2.1 meters deep if sound is resonating at 353 Hz?
185 m/sec
556 m/sec
371 m/sec
741 m/sec
Copyright © 2007-2018
William A. Hilburn
All rights reserved.
Application Programmer
Mark Acton