Practice Problems
Assorted Resonance
Directions:
On this worksheet you will be investigating examples of resonance.
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Question 1
What is the wave speed of a wave traveling through a long spring if its frequency is 10 Hz and its wavelength is 2 m.
0.20 m/sec
5.00 m/sec
20.0 m/sec
12.0 m/sec
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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?
10.0 meters
2.00 meters
1.00 meters
4.00 meters
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Question 3
A string vibrates at 278 Hz with a wavelength of 2 meters. If the wavelength is shortened by 0.5 meters, what is its new frequency?
371 Hz
209 Hz
1112 Hz
556 Hz
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Question 4
A fundamental fixed-fixed standing wave is generated along a 1-meter string when its frequency is 278 Hz. What would be the frequency of a 3rd harmonic wave generated along this same string?
417 Hz
834 Hz
556 Hz
93 Hz
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Question 5
The speed of sound inside a 0.78-meter long open-closed tube (fixed-free) is 343 m/sec.What are its first three resonate frequencies?
220 Hz, 660 Hz, 1099 Hz
220 Hz, 440 Hz, 660 Hz
110 Hz, 220 Hz, 330 Hz
110 Hz, 330 Hz, 550 Hz
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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
220 Hz, 440 Hz, 660 Hz
220 Hz, 660 Hz, 1099 Hz
110 Hz, 330 Hz, 550 Hz
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Question 7
The lowest frequency that a conch shell is able to produce is 220 Hz, if the resonating dimension is 0.39 meters and the wave speed is 343 m/s, what type of standing wave is being created?
cannot be determined
free-free
fixed-fixed
fixed-free
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Question 8
What is the speed of sound in a chamber (fixed-free) that is 2 meters deep if sound is resonating at 278 Hz?
556 m/sec
417 m/sec
278 m/sec
139 m/sec
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William A. Hilburn
All rights reserved.
Application Programmer
Mark Acton