Analytical Physics

PREFLIGHT

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The following three questions refer to the material you were to read in preparation for the lesson.

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1. Multiple Choice

Q values are listed for several resonant systems. Which is the correct ordering, from least to greatest Q, of the following systems used in clocks:
(a) a tuning fork (b) grandfather clock pendulum (c) a quartz crystal
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bac
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cab

honors extra

High sopranos are legendary for breaking crystal goblets with their voice alone. I've seen this demonstrated with a loudspeaker and a Pyrex beaker, which involves finding the resonant frequency of the beaker. Estimate, using what you know about sound, voice and the breaking point of glass, what the Q value of the goblet is. Write down your assumptions in this calculation.

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