Rating is available when the video has been rented.
This feature is not available right now. Please try again later.
Published on Mar 21, 2009
The waves on the surface of the water are neither longitudinal nor transverse. We can see in animation that red ball, which simulates the molecule of the water surface, moves in a circle path. So, the wave on the water surface is the superposition of transverse and longitudinal motions of the molecules.
The molecules on the water surface move under the action of surface tension and gravity. Next animation simulates the wave motion of the molecules in the surface layer of water (or other liquid). If the amplitude of this wave is small, then every molecule moves in a circle path. The radii of these circles are diminishing with depth, so the balls in bottom part of animation are still.