PHY138: Physics for the Life Sciences

Department of Physics, University of Toronto

Jason Harlow
Monday, November 19, 2007

Waves Section, Lecture 5: Superposition, Standing Waves

Chapter 21: Superposition.

       Section 21.1: The Principle of Superposition

       Section 21.2: Standing Waves

       Section 21.3: Transverse Standing Waves

       Section 21.4: Standing Sound Waves and Musical Acoustics

 

Side-screen Slides

Web Format

Powerpoint Format (.ppt)

PDF Format

 

Central Screen tablet notes

Web Format

PDF Format

 

Applet showing pulse interference

 

Sinusoidal Wave Addition Applet

 

Animations of 1D and 2D Standing Waves

 

 

 

 

Reflection/Transmission animations:

A pulse traveling from a region of low wave speed to higher wave speed. The reflected pulse is positive.

 

 

 

A pulse traveling from a region of high wave speed to lower wave speed. The reflected pulse is negative.

 

 

 

A pulse traveling along a string with a free end. This is the limiting case of when the second string is very light. The reflected pulse is positive.

 

 

 

A pulse traveling along a string with a fixed end. This is the limiting case of when the second string is very heavy. The reflected pulse is negative.

 

 

Standing Wave Animation: