Dopper effect

[doomknight]

Does the velocity of sound change? I know pitch/frequency/wavelength changes.

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[mrmandrake]

Does the velocity of sound change? I know pitch/frequency/wavelength changes.

no, i dont believe the velocity changes in doppler effect calculations unless the sound is transferred to another medium or something

 

[iA-MD2013]

nope, velocity won't change.

 

[doomknight]

ok thanks

 

[bodonid]

nm, I don't think I understand this well enough to make such generalizations. see below.

 

[RSAgator]

velocity is a property of the medium

 

[bodonid]

velocity is a property of the medium

absolute velocity is, yes. But when you walk toward a wave moving at the speed of sound, isn't the observed velocity increased? That is the basis for the Doppler equation, I think.

 

[RSAgator]

Well the velocity doesn't change. The fact that the doppler effect is concerned with a relative velocity doesn't change the fact that velocity itself is a property of the medium =)

 

[Chanbrandy]

If I remember correctly, there is a question from aamc8 asking about this. And the answer is velocity does not change.

 

[mrmandrake]

absolute velocity is, yes. But when you walk toward a wave moving at the speed of sound, isn't the observed velocity increased? That is the basis for the Doppler equation, I think.

yea, the relative velocity of the sound wave will be changed if you (the detector) are moving too. so if you are moving at 170m/s in the same direction as the wave which moves at 340m/s, it will be moving 170m/s relative to you. this is the doppler effect.

 

[bodonid]

Well the velocity doesn't change. The fact that the doppler effect is concerned with a relative velocity doesn't change the fact that velocity itself is a property of the medium =)

agreed.