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 379 Hz and travels in air at a speed of 347.8 m/sec. How far apart are any two adjacent wave compressions?
1.84 meters
7.27 meters
0.92 meters
1.09 meters
omit
Question 2
A fisherman notices that wave crests pass the bow of his anchored boat every 6 seconds. He measures the distance between two wave crests to be 7.4 meters. How fast are the waves traveling?
2.47 m/sec
44.4 m/sec
22.2 m/sec
1.23 m/sec
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Question 3
A wave has a speed of 280 m/sec and a wavelength of 7.4 meters. What is this wave's period?
3.78 x 10
1
seconds
2.64 x 10
-2
seconds
2.87 x 10
2
seconds
2.73 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 0.28 seconds. What is the wave's frequency?
8.93 x 10
-1
Hz
1.12 x 10
0
Hz
3.57 x 10
0
Hz
1.79 x 10
0
Hz
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Question 5
If the wavelength is 1.895 meters in
Question 4
, that how fast does the wave energy travel along the string?
3.38 x 10
0
m/sec
6.77 x 10
0
m/sec
1.69 x 10
0
m/sec
2.12 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 4.67 x 10
14
Hz. What is the approximate wavelength of the light?
6.43 x 10
-7
meters
2.14 x 10
-15
meters
3.22 x 10
-7
meters
1.56 x 10
6
meters
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William A. Hilburn
All rights reserved.
Application Programmer
Mark Acton