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You are watching: What does sound travel fastest through

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Why go sound travel faster in solids than in liquids, and also faster in liquids than in gases (air)? asked by: will KAnswerSound is nothing more than a local disturbance who propagation is assisted in by the collisions between particles; this disturbance propagates ina logitudnal wave; imagine one molecule hitting the next molecule, and also then the molecule hitting the next, and also so forth.The distances between molecules in solids are very small, i.e., solids are more dense - as compared to liquids and also gases. Because theyare so close, than have the right to collide very quickly, i.e. It takes much less time for a molecule of the solid to "bump" right into its neighborough. Solids space packed together tighter 보다 liquids and gases, for this reason sound travels fastest in solids. The ranges in liquids are much shorter than in gases,but longer than in solids. Liquids are an ext dense 보다 gases, but less thick than solids, therefore sound travels second fast in liquids. Gases are the slowest since they space the least dense: the molecule in gases are an extremely far apart, compared with solids and also liquids.Answered by: Jonathan AppleIf one solves the wave equation for the propagation the sound, one find thatthe square that the sound velocity is proportional to the ratio of one elasticmodulus come the mass density of the material. Therefore, through a basic densityargument, one should conclude that the sound velocity is higher in gasesthan in solids and also liquids which, that course, is not true. The reason why thesound velocity is usually bigger in solids than in liquids and also usuallylarger in liquids than in gases is due to the fact that of the elastics constants that thematerial. What determines the elastic constants of a product is the interatomic bondstrength. The stronger the bond, the greater the elastic constants. In gases,the atom are an extremely weakly bonded together and the elastic constants room verylow. In solids, the atom are more tightly external inspection together, and the elasticconstants space higher, ... The is most of the time. In part cases, someelastic constants the solids deserve to drop to virtually zero and the (shear) soundvelocity have the right to reach almost zero. This have the right to happen, for example, close to astructural phase transformation.Answered by: Andr" Moreau, Canada
"Science is facts; simply as residences are make of stones, for this reason is scientific research made that facts; but a pile of stones is no a house and also a arsenal of facts is not necessarily science."Henri Poincare(1854-1912)


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