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You are watching: Sound waves travel through gas liquid and solids

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Why go sound travel quicker in solids 보다 in liquids, and also faster in liquids 보다 in gases (air)? request by: will certainly KAnswerSound is nothing more than a local disturbance who propagation is promoted by the collisions in between particles; this disturbance propagates ina logitudnal wave; imagine one molecule hitting the following molecule, and then the molecule hitting the next, and so forth.The distances between molecules in solids are very small, i.e., solids are more dense - as compared to liquids and also gases. Since theyare so close, than deserve to collide really quickly, i.e. It takes less time because that a molecule the the solid come "bump" into its neighborough. Solids space packed together tighter 보다 liquids and also gases, hence sound travel fastest in solids. The ranges in liquids are much shorter than in gases,but much longer than in solids. Liquids are much more dense 보다 gases, however less thick than solids, therefore sound travels second fast in liquids. Gases space the slowest because they room the the very 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 because that the propagation the sound, one find thatthe square that the sound velocity is proportional come the proportion of an elasticmodulus to the mass density of the material. Therefore, through a simple densityargument, one should conclude that the sound velocity is higher in gasesthan in solids and also liquids which, of course, is no true. The reason why thesound velocity is usually larger in solids than in liquids and usuallylarger in liquids than in gases is since 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 atom are very weakly external inspection together and also the elastic constants are verylow. In solids, the atom are much more tightly external inspection together, and the elasticconstants space higher, ... The is most of the time. In part cases, someelastic constants of solids deserve to drop to nearly zero and also the (shear) soundvelocity can reach practically zero. This have the right to happen, for example, close to astructural step transformation.Answered by: Andr" Moreau, Canada
"If one wishes to obtain a definite answer native Nature one must assault the question from a more general and less selfish point of view."Max Planck(1858-1947)


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