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 2.8 m.
3.21 m/sec
11.8 m/sec
0.31 m/sec
25.2 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?
5.60 meters
1.40 meters
2.80 meters
12.6 meters
omit
Question 3
A string vibrates at 359 Hz with a wavelength of 2.8 meters. If the wavelength is shortened by 0.7 meters, what is its new frequency?
479 Hz
513 Hz
269 Hz
1436 Hz
omit
Question 4
A fundamental fixed-fixed standing wave is generated along a 0.9-meter string when its frequency is 359 Hz. What would be the frequency of a 3rd harmonic wave generated along this same string?
1077 Hz
120 Hz
539 Hz
646 Hz
omit
Question 5
The speed of sound inside a 0.79-meter long open-closed tube (fixed-free) is 347.8 m/sec.What are its first three resonate frequencies?
110 Hz, 220 Hz, 330 Hz
220 Hz, 440 Hz, 660 Hz
110 Hz, 330 Hz, 550 Hz
220 Hz, 660 Hz, 1101 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?
110 Hz, 220 Hz, 330 Hz
110 Hz, 330 Hz, 550 Hz
220 Hz, 660 Hz, 1101 Hz
220 Hz, 440 Hz, 660 Hz
omit
Question 7
The lowest frequency that a conch shell is able to produce is 220 Hz, if the resonating dimension is 0.395 meters and the wave speed is 347.8 m/s, what type of standing wave is being created?
cannot be determined
fixed-fixed
free-free
fixed-free
omit
Question 8
What is the speed of sound in a chamber (fixed-free) that is 2.8 meters deep if sound is resonating at 359 Hz?
1005 m/sec
251 m/sec
754 m/sec
503 m/sec
Copyright © 2007-2017
William A. Hilburn
All rights reserved.
Application Programmer
Mark Acton