Standing+Waves

**Standing Waves **
media type="file" key="My First Project2.mov" __**Standing Waves**__
 * This video shows a standing wave produced in a spring.
 * Also known as stationary waves
 * Wave remains in constant position
 * The medium can move in the opposite direction to the wave
 * Can happen in stationary medium as a result of interference between two waves traveling in opposite directions
 * Occur on a medium of any size
 * Points of no displacement are called nodes
 * Maximum displacement points, during each vibrational cycle are called antinodes
 * Antinodes will oscillate back and forth between points of large positive displacement and points of large negative displacement
 * This [|link] shows the location of the nodes and antinodes on a wave
 * Standing waves may undergo either constructive or destructive interference
 * Constructive interference is when two interfering waves have the same displacement in the same direction. This can occur at any location along the medium
 * Destructive interference is when two interfering waves have displacement in the opposite direction. This also can occur at any location along the medium
 * The picture above shows standing waves in phase. When waves are in phase, the maximum amount of sound can be heard.
 * [[image:Picture_2.png]]
 * This picture shows standing waves out of phase. When waves are completely out of phase, no sound can be heard.