Thursday, September 24, 2015

practice for Wednesday's quiz

Be sure to review notes from the entire year so far, as the quiz will cover:  pendulums, simple harmonic motion, the basics of waves.  You will be given any needed equations.

Also:

1.  Determine the frequency of a 120 pm x-ray.  (pm means picometers, or 10^-12 m)

2.  Give the differences between mechanical and electromagnetic waves, citing examples of each.  (This is a leftover from the last homework.)

3.  If you were designing a grandfather clock to work on Venus, where the gravity is roughly 90% of Earth's, how long should the pendulum be so that the period is 1 second?

4.  Waves can be represented with mathematical curves (usually sine graphs).  Consider amplitude and frequency for a moment.  What real wave characteristics corresponds to these things in a sound wave?  How about in a light wave?

Don't forget to review all of the earlier material and homework.

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