Practice Standing Waves And Eigenfrequencies (4) - Non-Dispersive Transverse and Longitudinal Waves in 1D & Introduction to Dispersion

Practice: Standing Waves and Eigenfrequencies

Lesson 4Non-Dispersive Transverse and Longitudinal Waves in 1D & Introduction to Dispersion

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9 questions

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4 cards from this section. Quick, good the night before a test.
Exercise
6 questions · about 4 min · pass mark 70%. Hints available.
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Quiz
3 questions · about 2 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
What are nodes in a standing wave?
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Think about where the wave isn’t moving at all.
Question 2.
Describe antinodes in simple terms.
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Where is the wave at its highest or lowest?
3Question 3.
What happens at the nodes of a standing wave?
- Maximum displacement
- Zero displacement
- Infinite displacement
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Think about where the wave does not move.
4Question 4.
Eigenfrequencies are dependent on which properties?
- True
- False
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Recall what factors determine the frequencies of vibrations.
Question 5.
A string of length 3 m is fixed at both ends. If the wave speed on the string is 270 m/s, calculate the first four eigenfrequencies.
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Apply \\( f_n = \\frac{nv}{2L} \\) for each harmonic.
Question 6.
Describe how changing the tension in a string affects the standing wave patterns.
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Consider the relationships you've learned about speed and frequency.

5 more questions in this section. Enroll free to practise them all.