U4AOS1 Topic 9: Wave Interference

There are two types of interference. Constructive and destructive.

 

Constructive interference is where the wavelengths overlap and add to each other to make 1 very big wave.

 

Destructive interference is where the wavelengths overlap and cancel each other out to make a flat line.

 

After waves have been added they have been super positioned.

Created with GeoGebra®, by Tom Walsh, Link

Waves reflect off of two types of ends. Fixed ends and free ends.

Fixed ends invert (flip) the wave. 

Free ends mirror the wave back.