Physical Science 20 - Jan 6

Today we started looking at the wave model and learning about wave behaviour.  We started by learning what causes waves.  Waves are periodic motion caused by vibrations or disturbances in a medium.  We learned about characteristics and key terms including period and frequency and how they are related.  This was covered on slides 90-103.  Students then had the rest of class to work on Homework 5.1.  We will go over this tomorrow.