Question

Why are sound waves called mechanical waves ?

Give 2 examples .

Answer 1

=) Soundwaves are called mechanical waves because sound waves are longitudinal waves .

=) longitudinal waves require medium to travel from one way to other.

sound waves are in form of creast or trough.

That's why it is called mechanical waves.

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Answer 2

Hi Deepika ^^"
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Sound waves are called mechanical waves because they need material medium to travel.It needs a medium I.e. solid ,liquid or gas to travel.they cant travel with medium.
______________________________________________________________we cant hear our voice or any sound in space because there is no atmosphere or particles that lead to hear us the sound .

Also we cant hear the sound in vacuum because sound cant travel in vacuum. it needs a medium.
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