Quiz5 B - Exam Name_Sound waves_ MULTIPLE CHOICE. Choose...

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Exam Name__Sound waves_________________________________ MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) The density of aluminum is 2700 kg/m 3 . If transverse waves propagate at 30 m/s in a 4.6 - mm - diameter aluminum wire, what is the tension on the wire? A) 32 N B) 48 N C) 40 N D) 24 N 2) When a guitar is tuned, what is it that is changed? A) The frequency of the fundamental. B) The amplitude of the fundamental. C) The phase of the fundamental. D) The wavelength of the fundamental. 3) One may readily deduce how sound intensity varies with distance from a uniformly radiating sound by making use of A) the Law of Conservation of Energy. B) the fact that sound is a longitudinal wave. C) Newton's Laws of Motion. D) the relation v = f λ 4) Consider the waves on a vibrating guitar string and the sound waves the guitar produces in the surrounding air. The string waves and the sound waves have the same A) velocity. B) wavelength. C) amplitude. D) frequency.
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This note was uploaded on 11/18/2011 for the course PHYS 2C PHYS 2C taught by Professor Groisman during the Spring '11 term at UCSD.

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Quiz5 B - Exam Name_Sound waves_ MULTIPLE CHOICE. Choose...

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