Ch 13 Vibrations & Waves

Visit HyperPhysics' Periodic Motion section for some EXCELLENT diagrams, problem-solving opportunities, and very complete explanations of

waves, their characteristics, and relationships.


For a simplified introduction to waves and the basic ideas, visit the Physics Classroom.


Sound Wave Longitudinal Wave (Compression Wave)


Wave Reflection:

PLAY with the simulation below to see how waves are reflected with fixed ends, loose ends, and free ends.

Try oscillations, pulse, and manual wiggling of the wrench. Explore how tension effects the waves, how damping takes away
the energy of the wave as it travels.This is pretty cool!

Wave Interference:

CHECK OUT real life interference patterns from Tsunamis! Look at Japan 2011 and Chili 2010

Make waves, put up barriers and watch how waves move around them and interfere.

Wave Interference
Click to Run

Click the image above to run the simulation

Make waves with a dripping faucet, audio speaker, or laser!
Add a second source or a pair of slits to create an interference pattern.

Be patient while the applet downloads, opens, and starts up...