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You are watching: Through which medium does sound typically travel 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)? asked by: will certainly KAnswerSound is nothing much more than a regional disturbance who propagation is helped with by the collisions in 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 an extremely small, i.e., solids are an ext dense - as compared to liquids and also gases. Due to the fact that theyare therefore close, than deserve to collide an extremely quickly, i.e. That takes less time for a molecule the the solid to "bump" into its neighborough. Solids space packed with each other tighter than liquids and also gases, therefore sound travels fastest in solids. The distances in liquids are much shorter than in gases,but longer than in solids. Liquids are an ext dense than gases, yet less thick than solids, so sound travels 2nd fast in liquids. Gases room the slowest due to the fact that they room the the very least dense: the molecules in gases are very far apart, compared with solids and liquids.Answered by: Jonathan AppleIf one solves the wave equation for the propagation that sound, one find thatthe square of the sound velocity is proportional to the proportion of one elasticmodulus come the mass thickness of the material. Therefore, by a an easy densityargument, one have to conclude the the sound velocity is higher in gasesthan in solids and also liquids which, the course, is not true. The reason why thesound velocity is usually bigger in solids 보다 in liquids and also usuallylarger in liquids than in gases is since of the elastics constants that thematerial. What identify the elastic constants of a material is the interatomic bondstrength. The more powerful the bond, the greater the elastic constants. In gases,the atoms are very weakly external inspection together and the elastic constants space verylow. In solids, the atoms are much more tightly bonded together, and also the elasticconstants space higher, ... That is many of the time. In some cases, someelastic constants of solids have the right to drop to almost zero and the (shear) soundvelocity have the right to reach nearly zero. This have the right to happen, for example, near astructural phase transformation.Answered by: Andr" Moreau, Canada
"To myself i seem to have been just like a boy playing on the seashore, and also diverting myself in now and then detect a smoother pebble or a prettier shell than ordinary, whilst the an excellent ocean of truth lay every undiscovered before me."Isaac Newton(1643-1727)


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