Practice Problems
Assorted Resonance
Directions:
On this worksheet you will be investigating examples of 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.
4.29 m/sec
18.9 m/sec
0.23 m/sec
11.1 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?
4.20 meters
2.10 meters
9.5 meters
1.05 meters
omit
Question 3
A string vibrates at 424 Hz with a wavelength of 2.1 meters. If the wavelength is shortened by 0.525 meters, what is its new frequency?
565 Hz
808 Hz
318 Hz
1696 Hz
omit
Question 4
A fundamental fixed-fixed standing wave is generated along a 0.9-meter string when its frequency is 424 Hz. What would be the frequency of a 3rd harmonic wave generated along this same string?
1272 Hz
763 Hz
141 Hz
636 Hz
omit
Question 5
The speed of sound inside a 0.75-meter long open-closed tube (fixed-free) is 343.6 m/sec.What are its first three resonate frequencies?
229 Hz, 687 Hz, 1145 Hz
229 Hz, 458 Hz, 687 Hz
115 Hz, 344 Hz, 573 Hz
115 Hz, 229 Hz, 344 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?
115 Hz, 229 Hz, 344 Hz
229 Hz, 458 Hz, 687 Hz
229 Hz, 687 Hz, 1145 Hz
115 Hz, 344 Hz, 573 Hz
omit
Question 7
The lowest frequency that a conch shell is able to produce is 229 Hz, if the resonating dimension is 0.375 meters and the wave speed is 343.6 m/s, what type of standing wave is being created?
fixed-free
fixed-fixed
free-free
cannot be determined
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 424 Hz?
890 m/sec
668 m/sec
223 m/sec
445 m/sec
Copyright © 2007-2024
William A. Hilburn
All rights reserved.
Application Programmer
Mark Acton