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 8 Hz and its wavelength is 2 m.
16.0 m/sec
0.25 m/sec
4.00 m/sec
10.0 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?
1.00 meters
4.00 meters
8.0 meters
2.00 meters
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Question 3
A string vibrates at 565 Hz with a wavelength of 2 meters. If the wavelength is shortened by 0.5 meters, what is its new frequency?
424 Hz
2260 Hz
753 Hz
1130 Hz
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Question 4
A fundamental fixed-fixed standing wave is generated along a 0.8-meter string when its frequency is 565 Hz. What would be the frequency of a 3rd harmonic wave generated along this same string?
188 Hz
904 Hz
848 Hz
1695 Hz
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Question 5
The speed of sound inside a 0.53-meter long open-closed tube (fixed-free) is 343 m/sec.What are its first three resonate frequencies?
162 Hz, 485 Hz, 809 Hz
324 Hz, 971 Hz, 1618 Hz
162 Hz, 324 Hz, 485 Hz
324 Hz, 647 Hz, 971 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?
324 Hz, 971 Hz, 1618 Hz
162 Hz, 485 Hz, 809 Hz
324 Hz, 647 Hz, 971 Hz
162 Hz, 324 Hz, 485 Hz
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Question 7
The lowest frequency that a conch shell is able to produce is 324 Hz, if the resonating dimension is 0.265 meters and the wave speed is 343 m/s, what type of standing wave is being created?
fixed-fixed
fixed-free
cannot be determined
free-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 565 Hz?
848 m/sec
283 m/sec
565 m/sec
1130 m/sec
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William A. Hilburn
All rights reserved.
Application Programmer
Mark Acton