Question

Why are sound waves called mechanical waves??​

Answer 1

Question :-

Why are sound waves called mechanical waves?

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Answer :-

In a sound wave, the particles of medium vibrate parallel to the direction of the wave. So, sound waves are longitudinal. And we know that, sound requires a material medium to travel through. Sound cannot travel through vacuum. Sound requires a medium such as solid, liquid, or gas to travel forth and back. Sound waves also carries a little amount of energy.

Hence, a sound wave is also called mechanical wave.

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Extra Information :-

• Sound travels at 343 m/s in air.

• It travels at 1,481 m/s in water (almost 4.3 times faster than in air).

• Sound travels at 5,120 m/s in iron (almost 15 times faster as compared to in air).

• Sound requires a materialistic medium so, it cannot travel through vacuum.

• The speed of sound increases with an increase in density of the medium from which it is travelling.

• The denser the medium, the faster the speed of sound.

• The less-denser the medium, the slower the speed of sound.

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Answer 2

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The sound waves are called mechanical waves because they need a material medium (like solid, liquid or gas) for thir propagation. The sound waves involve the vibrations of the particles of the medium through which they travel.

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