Friday, September 27, 2013

Homework to be turned in on Tuesday

Please write your work and answers on a sheet of paper that you can turn in.  Thanks!

1.  What factor(s) does the period of a pendulum depend on?

2.  Draw the approximate shape of a graph of period vs. length for a pendulum.

3.  The equation we've seen in class is the period of a "simple" pendulum.  What do you suppose makes our pendulums "simple"?

4.  Calculate the period of a 5-m long pendulum.

5.  If the pendulum in #4 above were taken to Mars, where the gravity is roughly 40% Earth's gravity, how would the period be different (if at all)? 

6.  Consider a 261.6 Hz sound wave (this is approximately the note 'middle C').  Assume that the speed of sound at sea level is 340 m/s.
a.  What is the wavelength of this sound wave? 
b.  Do you think the wavelength of this sound wave would be different on the Moon?

No comments:

Post a Comment