Earthquakes are created due to the movement of the earth plates which then sends these disturbances in the form of waves similar to sound waves through the earth and to the surface causing an Earthquake. 0000001474 00000 n The bonding is much stronger in solids and hence the speed of sound is much faster as compared to fluids and gases. Sound cannot travel in vacuum as there is nothing to propagate the energy. In the olden days, doctors used stethoscopes consisting of thin wooden rods with broadened ends and they worked exactly like our modern ones and performed just as well. This can be seen from the mathematical equation as well. 0000006064 00000 n Unlike light, sound needs a medium to travel from one point to the other. The picture below depicts a solid string being used to study the movement of sound. The speed of sound is defined as the dynamic propagation of sound waves. Required fields are marked *. Speed of sound in various liquids and solids Substance Chem. 0000029807 00000 n sounds. Earthquakes are also sound waves that travel across the tectonic plates. For two materials with similar elastic properties, the denser medium has a lower speed of sound than the rarer medium. Or it can be said that the sound travels faster in water than in air. Speed of sound in a gas depends on the density and elasticity of the gas. These velocities help in predicting the behavior of the solids to different speeds of sound waves. It is also used by kids for wired telephonic transfer of It is also interesting to know that the speed may vary between 1450 to 1498 meters per second in distilled water whereas the speed is 1531 metres per second in seawater when the temperature is between 20oC to 25oC. An elastic solid tends to simply transfer the energy while a more rigid solid often breaks down. Furthermore, how the matter responds to energy also plays a vital role in how the sound will be propagating in a particular type of solid. The mathematical representation is given as: There are two factors that affect the speed of sound: For sound waves to travel, there is a requirement of medium and density of the medium is considered to be one of the factors on which the speed of sound depends. The table below lists the speed of sound in various media. Higher the frequency, the higher the pitch. 0000000947 00000 n Depending upon the type of contact sound makes with the solids, their speed differs. This medium can be anything from gaseous, liquid or solids. Similarly, the density of a liquid is greater than the density of a gas. 0000009962 00000 n 0000014124 00000 n This depends on the characteristics of the medium through which the propagation takes place. Depending upon the density of solids, the speed of sound varies. The speed of sound in water is more than that of the air. 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