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You are watching: What does sound travel through the fastest

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Why walk sound travel much faster in solids than in liquids, and faster in liquids 보다 in gases (air)? request by: will KAnswerSound is nothing more than a local disturbance whose propagation is promoted by the collisions in between particles; this disturbance propagates ina logitudnal wave; imagine one molecule hitting the following molecule, and also then that molecule hitting the next, and so forth.The distances in between molecules in solids are an extremely small, i.e., solids are much more dense - as compared to liquids and gases. Since theyare so close, than have the right to collide really quickly, i.e. It takes much less time for a molecule of the solid come \"bump\" into its neighborough. Solids room packed with each other tighter than liquids and also gases, therefore sound travel fastest in solids. The distances in liquids are shorter than in gases,but much longer than in solids. Liquids are much more dense than gases, however less thick than solids, for this reason sound travels 2nd fast in liquids. Gases room the slowest since they room the the very least dense: the molecules in gases are an extremely far apart, compared with solids and 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 come the proportion of one elasticmodulus to the mass thickness of the material. Therefore, through a straightforward densityargument, one must conclude the the sound velocity is greater in gasesthan in solids and also liquids which, the course, is no true. The factor why thesound velocity is usually bigger in solids than in liquids and usuallylarger in liquids than in gases is due to the fact that of the elastics constants the thematerial. What identify the elastic constants that a material is the interatomic bondstrength. The stronger the bond, the greater the elastic constants. In gases,the atoms are very weakly bonded together and also the elastic constants space verylow. In solids, the atom are an ext tightly external inspection together, and the elasticconstants space higher, ... The is many of the time. In part cases, someelastic constants the solids deserve to drop to virtually zero and the (shear) soundvelocity can reach virtually zero. This can happen, because that example, close to astructural phase transformation.Answered by: Andr\" Moreau, Canada
\"If I have seen a little further the is by standing on the shoulders the Giants.\"Isaac Newton(1643-1727)


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