1. PHY138 – Waves, Lecture 1 New instructor for November and December
PHY138 – Waves, Lecture 1 New instructor for November and December!!! Jason Harlow Office: MP 251-A

3. Sound Waves result from periodic oscillations of air molecules, which collide with their neighbours and create a propagating disturbance.

4. Electric and Magnetic fields, when oscillated, can create waves which carry energy. At the right frequency, we see electro-magnetic waves as Light.

5. Reading Assignment
This week’s reading assignment from the text by Knight is: Chapter 14, Sections
There is a Problem Set due Friday on this material online at .
Suggested Chapter 14 Exercises and Problems for Study and Practice: 13, 17, 23, 33, 51, 55, (77)

6. PHY138 – Waves, Lecture 1 Today’s overview
Oscillations; Repeating Motion
Simple Harmonic Motion
Oscillations / Circular Motion Connection
Potential and Kinetic Energy in Oscillations

7. Oscillations that are not sinusoidal:

8. Sinusoidal oscillations = Simple Harmonic Motion (SHM)

11. equilibrium

12. K.E., Potential Energy and Total Mechanical Energy for SHM.