# Sound QuestionWatch

Thread starter 1 year ago
#1
For Edexcel GCSE physics, can anyone explain this specification point (mostly the first and second 'points', I think I understand the 3rd:

4.12P Describe the processes which convert wave disturbances between sound waves and vibrations in
solids, and:
- explain why such processes only work over a limited
frequency range
- use this to explain the way the human ear works
0
1 year ago
#2
(Original post by B54321)
For Edexcel GCSE physics, can anyone explain this specification point (mostly the first and second 'points', I think I understand the 3rd:

4.12P Describe the processes which convert wave disturbances between sound waves and vibrations in
solids, and:
- explain why such processes only work over a limited
frequency range
- use this to explain the way the human ear works
Rarefactions and compressions.

Because it is a mechanical wave and work is done to the surroundings.
0
Thread starter 1 year ago
#3
(Original post by The Δa/Δt)
Rarefactions and compressions.

Because it is a mechanical wave and work is done to the surroundings.
So for the first point, a sound wave's compressions and rarefactions causes changes in pressure on the surface of a solid, causing particles to vibrate so the wave is passed from the air to the solid as vibrations.

I don't think the second point is actually referring to work done though.
0
1 year ago
#4
(Original post by B54321)
So for the first point, a sound wave's compressions and rarefactions causes changes in pressure on the surface of a solid, causing particles to vibrate so the wave is passed from the air to the solid as vibrations.

I don't think the second point is actually referring to work done though.
What do you think then?

Maybe it's referring to wavelength?

My point is that the vibrations stop happening since the energy is lost to the surroundings.
0
Thread starter 1 year ago
#5
(Original post by The Δa/Δt)
What do you think then?

Maybe it's referring to wavelength?

My point is that the vibrations stop happening since the energy is lost to the surroundings.
Oh okay, I think that probably is it. Thanks!
0
1 year ago
#6
(Original post by B54321)
Oh okay, I think that probably is it. Thanks!
Good luck on exams.
0
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