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 374 Hz and travels in air at a speed of 343 m/sec. How far apart are any two adjacent wave compressions?
7.17 meters
1.09 meters
0.92 meters
1.83 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 7.2 meters. How fast are the waves traveling?
1.44 m/sec
18.0 m/sec
2.88 m/sec
36.0 m/sec
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Question 3
A wave has a speed of 200 m/sec and a wavelength of 7.2 meters. What is this wave's period?
1.93 x 10
2
seconds
2.78 x 10
1
seconds
3.6 x 10
-2
seconds
2.07 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 0.2 seconds. What is the wave's frequency?
1.25 x 10
0
Hz
8 x 10
-1
Hz
2.5 x 10
0
Hz
5 x 10
0
Hz
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Question 5
If the wavelength is 1.87 meters in
Question 4
, that how fast does the wave energy travel along the string?
1.5 x 10
0
m/sec
2.34 x 10
0
m/sec
4.68 x 10
0
m/sec
9.35 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 7.06 x 10
14
Hz. What is the approximate wavelength of the light?
2.35 x 10
6
meters
1.42 x 10
-15
meters
2.13 x 10
-7
meters
4.25 x 10
-7
meters
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William A. Hilburn
All rights reserved.
Application Programmer
Mark Acton