-Non-repeating wave; single disturbance.
-Wave recurring at regular intervals. This kind wave requires regularly repeating disturbances.
-This wave has disturbances which is at right angle to the direction that wave will travel.
-Disturbance in this wave is in the same direction as the direction of wave travels.
-It occurs when the crest and crest or trough and trough meet together. Two waves make a bigger trough or crest at that time.
-When a trough and crest meet together, it happens. The energies combine to work against each other so that two waves tend to cancel out.
-When interfering waves have the same amplitude and wavelength, the resultant interference pattern remains nearly stationary and is called as standing wave.
4.How dose increasing the tension of the slinky/string affect the speed of wave?
When tension is increased, the restoring force increases, the wave will snap back into the place and the wave will propagate faster.
5, When crest hits boundary, dose it reflect as a crest or trough?
When a crest hits a boundary, it reflects as a trough and when a trough hits a boundary, it reflects as a crest.
6, How dose frequency affect wavelength? For example, if you increase the frequency of a wave, what affect dose it have on the wavelength?
It affects the speed the speed. The higher frequency, the faster the waves.