Question

how does the sound needs a medium to travel and why are sounds are called mechanical waves?

Answer 1

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Sound Wave Need Medium Because Its A Longitudinal Wave And Longitudinal Waves Travel To And Fro To Direction Of Prapogation.
It Called A Mechanical Wave Due To Fact That It Need A Material Medium To Travel
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Hope It Helps!

Answer 2

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Sound waves force the medium particles to vibrate.

Hence, these waves are known as mechanical waves.

Sound waves propagate through a medium because of the interaction of the particles present in that medium.

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