Why isnt there any sound in a vaccum?

Question

I know that sound is caused by a collision which creates vibrations and the surrounding gasses creates frequencys and then they travel through the air and touch the hairs in your ear and the membranes move back and forth and it is transformed into what we perceived as sound. What i want to know is when a collison occurs in a vaccum, why the energy that would normally be pushing on the gasses wont pass through the "nothingness" directly to the ear hairs and membranes. Energy can not be created or destroyed so where does the energy go that is created when a colision occurs in a vaccum. and if it reaches your ear why doesnt it push the hairs and create sound. If it can push air molecules then it has enough force to push your ear hairs.

Answer 1

actually, there may be something in the nothingness of a vacuum....

well,, sound (waves) needs a medium for it to travel...
medium like solids and fluids...
sound (waves) cannot travel in a vacuum..
there's nothing in a vacuum...
that's why there's no sound...
no pressure is created by the sound waves...
thst's why there's no sound...

Answer 2

What does a vacuum mean? It is the absence of matter, including gases. There are no collisions in a vacuum because there are no molecules.
There is no air-borne sound in a vacuum because there is no air.

There is a well-known science experiment in which you put an alarm clock (or some kind of noise maker) into a glass jar, then seal the jar and draw a vacuum. As the air is removed from the jar, the sound grows less and less.

However, structure-borne sound is still possible in a vacuum.
Your ears are mainly adapted to pick up air-borne sound. You can to some degree hear structure-borne sound through bone conduction but it is difficult to figure out how you could use that in a vacuum. If more than a tiny area of skin is exposed to a true vacuum, the skin will rupture.

Answer 3

You are right about energy not being able to be created or destroyed only transferred. If you tried to ring a bell in a vacuum, the clapper would strike the side of the bell and the bell would vibrate. However in a vacuum, there is no air, no medium to carry that vibration to the ear. Without a transmission medium the ear will not receive the vibration, so there is energy but no sound that you could hear at a distance. If you put your ear on the vibrating object you would hear a vibration even in a vacuum since the air would not be needed to move the vibration to the ear.

Answer 4

Sound can't pass through vacuum. It's a series of vibrations transmitted by collisions in a medium. The gasses in space are so diffuse that they can't stimulate the ear enough for the brain to notice. As for where energy involved in a collision goes, it stays where it started: in the objects which collide.

Answer 5

Well really there is no such thing as a vacuum, just negative atmospheric pressure, But a vacuum is the absence of matter, including gases. There are no collisions in a vacuum because there are no molecules to collied with, So there can not be any air born sound for there is no air born sound in a vacuum. So really the best way to answer your question in general is there is no sound in a vacuum (negative atmospheric pressure).

Answer 6

Sound is changes in air/gas pressure so if you have no air/gas of which to change the pressure you have no sound. I'm thinking the energy would be converted to heat and motion of the particles colliding rather than generating changes in air pressure or sound. A perfect vaccum is an absense of of all matter. This is an unacheivable state so there will still be gas in the container it is just at a lower pressure than the atmosphere.

Answer 7

A vacuum is exactly that a vacuum. Since there is no atomic particles in a vacuum there is nothing to cause a collision. If you create a sound out side a vacuum the sound will travel around a it but it will not go through it.

Answer 8

You seem to be saying the words without understanding them:

"when a collison occurs in a vacuum" is an impossibility.

There are no molecules in a vacuum, by definition. Therefore, no collisions.

Answer 9

via definition a vacuum is a loss of each and every thing. yet, there is not any such situation as a suitable vacuum. Even area is a techniques from it. In area you will locate little "air" as we expect of of it, yet there'll be unfastened floating debris of Hydrogen and Helium, and of direction the ubiquitous vacuum fluctuation, wherein tiny debris spontaneously create themselves out of no longer something, and then annihilate one yet another basically as immediately. in certainty, our entire universe is a property of those vacuum fluctuations. you're good in that count is often in a sturdy, liquid, or gas (or plasma) state. regardless of if, a "vacuum" isn't count, yet a loss of count. photograph it this way. Say you had a huge bathtub stuffed with bathwater. Now, you insert a balloon in this water and fill it with air. needless to say, this air has much less tension than the encircling water. The air interior the balloon isn't a entire vacuum, needless to say, yet its a water vacuum. in case you pop the balloon, the encircling water will rush in to fill the area. this is particularly like the vacuum of area. it relatively is not completely empty, regardless of if this is a community of particularly low tension. Any air attainable will rush to fill it except a greater physically powerful tension (like gravity) acts upon it. regardless of if, area is so quite enormous that any quantity of air released into it relatively is going to easily scatter into the void, until eventually this is stretched so skinny that it relatively is going to become no longer something yet scattered atoms. the only exception could be if the cloud of gas have been so massive that its very own gravity held it at the same time, wherein case you will possibly see a nebula, which, if it have been sufficiently enormous, might ultimately condense right into greater than a number of stars surrounded via planets. desire this enables.

Answer 10

Sound waves need a medium to travel through in order for this to happen. Since there is nothing inside of a vacuum, sound waves cannot travel.