Which best explains why sound travels fastest through a solid?
A. Sound is a mechanical wave, so closer molecules in the medium cause energy to transfer faster.
B. Sound is a mechanical wave, so if the volume of the medium is greater, more energy is transferred.
C. Sound is an electromagnetic wave, so the medium does not affect the speed.
D. Sound is an electromagnetic wave, so a greater amplitude results in a greater speed.

In a mechanical wave (such as sound), the transfer of the energy occurs due to the oscillations of the molecules: by colliding with the other molecules close to them, they transfer energy.

From this mechanism, we can easily understand that the closer the molecules are, the more efficient this process is, and therefore the faster the energy is transferred. In solids, molecules are very closed to each other (much more than in liquids or gases), so the sound wave can propagate faster and the energy transfer also occurs faster.

paridhivt paridhivt · Answer 2 · 2022-08-15T12:04:55+02:00

Sound is a mechanical wave, so closer molecules in the medium cause energy to transfer faster.

How sound travels faster in closer molecules?

Definition:

Sound is a vibration that stimulates the nerves inside the ears to create the sensation of hearing.

Example: voice, anything that we can hear.

Sound travels fastest through solids because molecules in a solids were more closer together and strongly bonded to each other than those in a liquid or gas.

Example: Sound waves over 17 times faster through steel than through air. The speed of sound in steel is 5,960 meters per second (13,332 mph).

As sound needs a material medium to propagate its wave. So, Sound is a mechanical wave.

Eg: Metals are the material medium, Water, etc..

Thus, Option A is the correct answer.

Learn more about sound,

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