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Practice Questions



This activity contains 25 questions.

Question 1.
The unit for the spring constant is


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Question 2.
The unit for the period is


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Question 3.
The unit for frequency is


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Question 4.
The unit for wavelength is


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Question 5.
The unit for the product of wavelength and frequency is


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Question 6.

The amplitude of the wave in the figure is


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Question 7.

The wavelength is


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Question 8.

The frequency of the wave is


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Question 9.

A stretched spring, fixed at both ends, vibrates at a frequency of 12 Hz with a standing transverse wave pattern as shown. What is this spring's fundamental frequency?


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Question 10.

A stretched spring, fixed at both ends, vibrates at a frequency of 12 Hz with a standing transverse wave pattern as shown. What would be the frequency of the first overtone?


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Question 11.

A stretched spring, fixed at both ends, vibrates at a frequency of 12 Hz with a standing transverse wave pattern as shown. If the string is 5 meters long, what is the wave velocity?


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Question 12.
If a string has a wave speed of 200 m/s and a mass per length ratio of 1.2 g/m, what is the tension?


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Question 13.
A stretched cord has a fundamental frequency of 144 Hz, a length of .9 m, and a mass of 2 g. What is its wave speed?


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Question 14.
A stretched cord has a fundamental frequency of 144 Hz, a length of .9 m, and a mass of 2 g. What is the tension on the cord?


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Question 15.

The animation shows the Tacoma Narrows Bridge (see Online Destinations) shortly before its collapse. What is its frequency?


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Question 16.

The animation shows the Tacoma Narrows Bridge (see Online Destinations) shortly before its collapse. The distance between the bridge towers (nodes) was about 860 meters and there was also a midway node. What was the wavelength of the standing torsional wave?


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Question 17.

The animation shows the Tacoma Narrows Bridge (see Online Destinations) shortly before its collapse. What is the amplitude?


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Question 18.

The picture shows two moving triangular waves.The scale shown at the bottom holds for the vertical scale, also.

What is the wavelength of the black wave?


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Question 19.

The picture shows two moving triangular waves.The scale shown at the bottom holds for the vertical scale, also.

What is the frequency of the black wave?


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Question 20.

The picture shows two moving triangular waves.The scale shown at the bottom holds for the vertical scale, also.

What is the frequency of the red wave?


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Question 21.

The picture shows two moving triangular waves.The scale shown at the bottom holds for the vertical scale, also.

What is the velocity of the black wave?


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Question 22.

The picture shows two moving triangular waves.The scale shown at the bottom holds for the vertical scale, also.

What is the velocity of the red wave?


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Question 23.

The picture shows two moving triangular waves.The scale shown at the bottom holds for the vertical scale, also.

What is the amplitude of the red wave?


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Question 24.
If the effective spring constant of a 2000 kg older car (with poor shocks) is 60000 N/m, what is the period of its vibration after hitting a bump?


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Question 25.
What is the effective spring constant of a 10 kg, 1.5 m simple pendulum?


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