# pq16ans - B Increase the frequency of the higher frequency...

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PHYS-1200 PHYSICS II SPRING 2005 Post Quiz 16 Name___________ ANSWERS _________________ In the space provided, to the left of the question number, write the letter corresponding to the best answer to the question. _E _ 1. Which of the following sound waves is most likely to produce beats pattern when combined with: s = (2.9 mm) sin[(0.13 m -1 ) x – (2.2 s -1 ) t ]? A. s = (2.9 mm) sin[(0.13 m -1 ) x + (2.2 s -1 ) t ] B. s = (3.1 mm) sin[(0.13 m -1 ) x + (2.2 s -1 ) t ] C. s = (2.9 mm) sin[(0.13 m -1 ) x – (2.2 s -1 ) t ] D. s = (3.1 mm) sin[(0.13 m -1 ) x – (2.2 s -1 ) t ] E. s = (2.9 mm) sin[(0.13 m -1 ) x – (2.4 s -1 ) t ] _B _ 2. In your activity today, you used a spreadsheet to simulate beats. Suppose you want to increase the beat frequency. Assuming you make only small changes, what should you do? A. Increase the frequency of the lower frequency signal
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Unformatted text preview: B. Increase the frequency of the higher frequency signal C. Increase the amplitude of the lower frequency signal D. Increase the amplitude of the higher frequency signal E. None of the choices listed here is correct _C _ 3. A New York City taxi cab is headed straight for you while the driver is leaning on the horn. How does the pitch of the horn as you hear it compare to the pitch that the driver hears? (Hint: The driver hears the pitch that is initially emitted) A. The pitch the cabbie hears is higher B. You hear the same pitch as the cabbie does C. The pitch you hear is higher D. It cannot be determined from the information given E. This choice is wrong, so do not pick it!...
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## This note was uploaded on 09/17/2008 for the course PHYS 1200 taught by Professor Stoler during the Spring '06 term at Rensselaer Polytechnic Institute.

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