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Date : Wednesday, April 21, 2010
Time : 9:28 AM
Title : Type Of Waves





Transverse waves


Transverse waves the displacement of the medium is perpendicular to the direction of propagation of the wave. A ripple on a pond and a wave on a string are easily visualized transverse waves.


video: http://www.youtube.com/watch?v=UHcse1jJAto



Longitudinal Waves



In longitudinal waves the displacement of the medium is parallel to the propagation of the wave. A wave in a "slinky" is a good visualization. Sound waves in air are longitudinal waves.

Video: http://www.youtube.com/watch?v=aguCWnbRETU


Sound Waves in Air

A single-frequency sound wave traveling through air will cause a sinusoidal pressure variation in the air. The air motion which accompanies the passage of the sound wave will be back and forth in the direction of the propagation of the sound, a characteristic of longitudinal waves.


video: http://www.youtube.com/watch?v=dhbS_1MdLq8





More video: http://www.gcse.com/waves/waves2.htm



Amirul Haziq[22]