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abelthayil
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Why can't sound pass through closed doors?
All those silly people knocking on doors, thinking that you can hear it on the other side. Laughable!abelthayil said:Why can't sound pass through closed doors?
A.T. said:All those silly people knocking on doors, thinking that you can hear it on the other side. Laughable!
abelthayil said:Why can't sound pass through closed doors?
The answer is actually already given in the OPs question itself:chrisbaird said:I vote the answer given by johng23 as the best one so far.
If the speed of sound would be the same in air and door, there would be no reflection.If sound travels faster through solids then why can't we hear through doors?
abelthayil said:Why can't sound pass through closed doors?
A.T. said:The answer is actually already given in the OPs question itself:
If the speed of sound would be the same in air and door, there would be no reflection.
YummyFur said:I was only musing a few days ago why sound is able to pass through not just one but a series of rigid barriers. And not just pass through but still maintain fine detail for example in the modulations of the human voice. So I also found the premise of this thread to be puzzling.
Can you have reflection, if the speed of propagation is the same in both media?rbj said:it's not so much the speed of propagation being different that causes reflections. it's the difference in the characteristic impedance of propagation. reflections happen when that parameter changes suddenly.
Yes, in principle, if they have different densities. The acoustic impedance of the medium is Z=cρ where c is the speed of sound and ρ the density. The reflection coefficient depends on the difference between the impedance of the two media.A.T. said:Can you have reflection, if the speed of propagation is the same in both media?
The reason why sound travels faster through solids is because solids have a higher density and tighter molecular structure compared to gases or liquids. This allows sound waves to travel more efficiently and at a faster speed.
Doors are typically made of materials like wood or metal which are considered to be good insulators of sound. This means that they are able to block or absorb sound waves, preventing them from passing through and making it difficult for us to hear sound from the other side of the door.
No, not all types of solids allow sound to travel through them. For example, sound cannot travel through a vacuum or a completely solid and dense material like a wall. The ability of a solid to transmit sound depends on its density, elasticity, and molecular structure.
Yes, under certain circumstances it is possible to hear through solid objects. For example, if the solid object has a thin or hollow structure, sound waves may be able to pass through it. Also, if the sound is loud enough or has a low frequency, it may be able to vibrate the solid object and produce audible sound on the other side.
Sound travels through solids, liquids, and gases in the form of vibrations. However, in solids, the molecules are tightly packed and can transmit these vibrations more quickly and efficiently compared to liquids and gases where the molecules are more spread out. This results in sound traveling faster through solids than through liquids and gases.