What must be present for the propagation of a mechanical wave?

[princess08]

What must be present for the propagation of a mechanical wave?

 

[Hootenanny]

What must be present for the propagation of a mechanical wave?

Welcome to PF,

What do you think must be present?

 

[princess08]

What must be present for the propagation of a mechanical wave?

 

[princess08]

I have no idea... Movement?

 

[Hootenanny]

I have no idea... Movement?

Hmm, not really what I had in mind. Can you give some examples of a mechanical wave?

P.S. You could have your answer in under five seconds from Google.

 

[princess08]

Movement?

Welcome to PF,

What do you think must be present?

 

[princess08]

sound, earthquake, water waves... it is vibration?

Hmm, not really what I had in mind. Can you give some examples of a mechanical wave?

P.S. You could have your answer in under five seconds from Google.

 

[Hootenanny]

sound, earthquake, water waves... it is vibration?

Correct! Can you now give me examples of non-mechanical waves?

 

[princess08]

I also read about a medium.

sound, earthquake, water waves... is it vibration?

 

[Hootenanny]

I also read about a medium.

That's the answer Mechanical waves require a medium through which to be transmitted, whereas non-mechanical waves require no medium.