Larryz Posted April 16, 2013 Share Posted April 16, 2013 Sound waves are longitudinal so soud travels in the same direction of as the vibration. So if a ruler vibrates up and down how does it travel accross the room to be heard. Link to comment Share on other sites More sharing options...
studiot Posted April 16, 2013 Share Posted April 16, 2013 Sound waves are three dimensional pressure waves. They are three dimensional because the pressure in a fluid is the same in all directions. So the ruler moving up and down in the air generates regular pressure fluctuations in all directions. It is these fluctuations that are transmitted across the room as a sound wave. Link to comment Share on other sites More sharing options...
dirtyamerica Posted April 17, 2013 Share Posted April 17, 2013 sound waves also refract Link to comment Share on other sites More sharing options...
studiot Posted April 17, 2013 Share Posted April 17, 2013 sound waves also refract In an otherwise empty room? Link to comment Share on other sites More sharing options...
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