Physics 1205 Reading Questions
Assignment #12

Chapter 12.10 - 12.21

Reading Questions should be submitted electronically using this form. They are due by 8:30 a.m. on Friday, December 5, 2008.
Any Reading Questions arriving late will receive no credit.
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Please enter your name below. You must use your first and last name exactly as written in official class registration. Be careful with the spelling:
First: M. I. Last:
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Answer the Reading Questions below. Please answer each question.

1. Waves transport
matter but not energy.
energy but not matter.
energy and matter.
neither energy or matter.

2. How is the energy in a wave related to its amplitude?

3. Are sound waves a result of molecules moving different distances or of pressure differences between the molecules? Explain.

4. Why do we measure loudness using a log scale (decibels)?

5. A car is traveling toward you while sounding its horn. Is the pitch of the horns higher, lower, or the same for you compared with the pitch the driver hears?
Higher
Lower
The Same

6. Define what is meant by superpostion of waves.

7. Define nodes and anti-nodes.

8. A string of length L is held stationary at its endpoints. What is the longest harmonic wavelength for this string?

9. What are resonant frequencies and hamonics?

10. Is it possible to make a periodic wave with any shape simply by adding up different sine and/or cosine waves?
Yes
No

Final Question: (This question must be answered to receive any credit). What is one thing from the chapter that you didn't understand or need clarified?

The following box must be checked to receive credit on this assignment
I did not receive help from anyone on this assignment.

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