Wave work.

Work if you have time:

1.  What are the units of:  amplitude, frequency, wavelength, period, speed/velocity?

2.  A pendulum takes 0.25 seconds to complete one swing.
a.  How many swings per second does it make?
b.  What is this amount called?
c.  What is the length of this pendulum?

3.  A mass on a spring oscillates 3 times per second.  What is the time between oscillations?

4.  Consider a basic (sine) wave.  Identify the important parts of the wave:  crest, trough, wavelength, amplitude.

5.  Four complete waves pass a point every 10 seconds. 
a.  What is the period of one wave?
b.  If the four complete waves have a total length of 16-m, what is the wavelength of one wave?
c.  What is the speed (v) of this wave?

5.  The speed of sound is approximately 345 m/s.  What is the wavelength of a 440-Hz sound wave?  This note is a concert A, by the way.