Practice Problems
Wave Fundamentals
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Question 1
A sound wave has a frequency of 488 Hz and travels in air at a speed of 341.8 m/sec. How far apart are any two adjacent wave compressions?
1.40 meters
1.43 meters
8.30 meters
0.70 meters
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Question 2
A fisherman notices that wave crests pass the bow of his anchored boat every 5 seconds. He measures the distance between two wave crests to be 8.5 meters. How fast are the waves traveling?
1.70 m/sec
21.3 m/sec
3.40 m/sec
42.5 m/sec
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Question 3
A wave has a speed of 180 m/sec and a wavelength of 8.5 meters. What is this wave's period?
1.72 x 10
^{2}
seconds
4.72 x 10
^{-2}
seconds
2.12 x 10
^{1}
seconds
1.89 x 10
^{2}
seconds
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Question 4
A sinusoidal wave travels along a string. The time for a particular point to move from maximum displacement to zero is 0.18 seconds. What is the wave's frequency?
2.78 x 10
^{0}
Hz
1.39 x 10
^{0}
Hz
5.56 x 10
^{0}
Hz
7.2 x 10
^{-1}
Hz
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Question 5
If the wavelength is 2.44 meters in
Question 4
, that how fast does the wave energy travel along the string?
6.78 x 10
^{0}
m/sec
1.36 x 10
^{1}
m/sec
3.39 x 10
^{0}
m/sec
1.76 x 10
^{0}
m/sec
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Question 6
Light has a speed in a vacuum of 3 x 10
^{8}
m/s. The frequency of visible light is about 5.52 x 10
^{14}
Hz. What is the approximate wavelength of the light?
1.84 x 10
^{6}
meters
2.72 x 10
^{-7}
meters
1.81 x 10
^{-15}
meters
5.43 x 10
^{-7}
meters
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William A. Hilburn
All rights reserved.
Application Programmer
Mark Acton