Quiz about Sound

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In air,sound travel at a speed at about . In freshwater, sound travels at a speed of about 1500m/s. In most solids, eg.in , sound travels at a speed of about 5000m/s. From this, we can see that the speed of sound depend on . The denser the material the the speed of sound.
Sound travel in the form of .The waves in the air are formed from air molecules. Although sound energy moves from a vibrating object to our ears, the air molecules themselves do not move to the ear; they just , that is, move backwards and forwards passing the along.