Practice Problems
Wave Fundamentals
Directions:
On this worksheet, you will deal with the fundamental definitions of waves.
omit
Question 1
A sound wave has a frequency of 362 Hz and travels in air at a speed of 343.6 m/sec. How far apart are any two adjacent wave compressions?
0.95 meters
1.05 meters
7.06 meters
1.90 meters
omit
Question 2
A fisherman notices that wave crests pass the bow of his anchored boat every 4 seconds. He measures the distance between two wave crests to be 5.8 meters. How fast are the waves traveling?
1.45 m/sec
11.6 m/sec
2.90 m/sec
23.2 m/sec
omit
Question 3
A wave has a speed of 210 m/sec and a wavelength of 5.8 meters. What is this wave's period?
2.76 x 10
^{-2}
seconds
2.04 x 10
^{2}
seconds
3.62 x 10
^{1}
seconds
2.16 x 10
^{2}
seconds
omit
Question 4
A sinusoidal wave travels along a string. The time for a particular point to move from maximum displacement to zero is 0.21 seconds. What is the wave's frequency?
4.76 x 10
^{0}
Hz
2.38 x 10
^{0}
Hz
8.4 x 10
^{-1}
Hz
1.19 x 10
^{0}
Hz
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Question 5
If the wavelength is 1.81 meters in
Question 4
, that how fast does the wave energy travel along the string?
4.31 x 10
^{0}
m/sec
8.62 x 10
^{0}
m/sec
1.52 x 10
^{0}
m/sec
2.15 x 10
^{0}
m/sec
omit
Question 6
Light has a speed in a vacuum of 3 x 10
^{8}
m/s. The frequency of visible light is about 5.85 x 10
^{14}
Hz. What is the approximate wavelength of the light?
1.95 x 10
^{6}
meters
5.13 x 10
^{-7}
meters
2.57 x 10
^{-7}
meters
1.71 x 10
^{-15}
meters
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William A. Hilburn
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Application Programmer
Mark Acton