The question and answer are locked and cannot be edited.
How is sound made why does it travel faster through solid elements and what is its speed?
Sound is a transverse wave made by particles banging into one another. (thus sound cannot travel in a vacuum)
In air (a gas), the particles are a long way apart so it takes longer for them to collide with one another to carry the sound.
In a solid, say a bar of metal, all the particles are jammed really close together, so if you bang one end of the bar, the wave will travel quickly down the length of the bar.
Sound travels at around 330m/s in air, and how fast it goes in solids depends on the properties of the solid, but I think for most metals it is very roughly around 600m/s
Hope this helps.
Was this answer useful?
Thanks for the feedback!
a solid because the particles are very tightly packed together and so they vibrate more.
sound is generated mainly due to the mediums molecule vibration in a pattern. In solids, the molecules are more closely packed when compared to gases. Hence, the vibratio…n occurs faster and hence the sound is tramsmitted sooner.
yes depends on the object, but yes
it travles faster in a solid
Sounds travel faster in solids because the solid molecules are closer together than the molecules in the air. Sound travels be one molecule hitting the next, so the denser the… material, the faster sound will travel in it.
In fact, sound does travel faster in solids than in liquids, and faster in liquids than in air. Also, we can hear through solids, but not very well. And it doesn't have anythi…ng to do with the speed of sound in the material. Let's look at what's going on. If sound originates in air on the other side of a wall, the sound must impinge on the wall to be transmitted through it. Some of the energy is reflected and some is absorbed, so that doesn't leave much to come through to where we might be listening. Also, you can hear better with an ear to the wall. But if the sound originates in the solid wall, you can hear it better, and can hear it very well with an ear pressed to the wall. This is because the solid will propagate it better (as well as faster) than it would travel in a liquid or in air. You might recall the old Indian trick of putting an ear to the rails to listen to find out if a train was coming. The sound is conducted in the solid rails (even with the spacing between sections) better than through the air. These people didn't know why this was so, but they knew that it was a fact.
Let's see if we can figure this one out. First, sound is mechanical energy. It needs a medium to travel through. The energy is transferred into the medium, and the medium carr…ies it through itself. That's propagation, and you probably already knew most or all of that. But we need to start at the beginning, so let's jump. When something moves to create sound, either continuously like a guitar string, or "just once" like when a hammer strikes a nail head, the action creates pressure waves or a pressure wave. The pressure wave or waves are actually atoms or molecules "pushing against" each other in response to the action causing the sound. The "pushing against" each other is the transfer of the mechanical energy of sound through whatever is "conducting" that energy. That's how sound is transmitted (and why sound can't travel through a vacuum). The medium is carrying the mechanical energy of the wave. So the action of atoms or molecules shoving each other "over" to conduct the sound, this compression of them, has an opposite action, which we call rarifaction. Let's make a short jump. When the cone of a speaker moves out and in, it creates compression and rarifaction waves in air. The air conducts these waves out and away from the speaker in the "usual manner" in which the mechanical energy is sent out. The gas atoms and molecules in the air are "shoved out" from the speaker and then are "sucked back" by the speaker. Sound moves via a longitudinal wave where the energy is transmitted along the path of travel of the wave. There is a fair amount of space between the atoms and molecules in air, so when the "shoving" starts, that is, when the vibration or movement of whatever it is that is making the sound begins, there is "room to move" in the gas. The energy isn't transferred as quickly or effectively because of the "loose" nature of the way the atoms and molecules are arranged. Let's jump to a liquid. In liquids, the atoms and/or molecules are "sloshing around" loosely, but their isn't as much space between the "particles" as there is in air or any gas. The "closeness" of the "particles" is going to allow for a more rapid and more efficient transfer of the mechanical energy of sound. When the "shoving" starts as the mechanical energy of sound is introduced, the "particles" in the liquid are going to conduct the energy better than any gas. Shall we look at a solid? Yes, let's. In a solid, the atoms or molecules of the sturcture are all "connected together" and can't "get away" from each other when "the shoving" starts as the mechanical energy of sound is introduced. Consider that the "particles" in a solid are all "locked in place" in the structure, and a solid will conduct sound a lot better than a liquid. Faster, too. The medium is more "rigid" than gas or liquid mediums, and this makes all the difference in the world as regards the propogation of sound. There will be some "exceptions" in this, like trying to transmit sound through, say, foam rubber. You can see the problem there. The spaces in the solid structure and the "tenuous" nature of the material and its geometry will "muffle" sound, or, from the point of view of physics, will absorb and less effectively transmit the mechanical energy of sound. Other than that, if you had a long, continuous beam of, say, steel, and you struck one end with a hammer, the sound would arrive at the other end having traveled through the beam itself sooner than it will having traveled through the air right above the beam. It's that simple and easy. by christian Taylor Sound waves travel by vibrating neighbouring molecules and transferring the sound energy from point A to point B. So the sound travels fastest in solids as the molecules are very closer together so the vibrations are transferred very quickly from one molecule to another.
Sound waves travel faster in solids than in a gas, because the molecules are more closely coupled together (it is a solid remember?) and are more densely packed than in a ga…s (where they are free to wander).
yes we can travel faster then the speed of sound. We have actually traveled about 36 times the speed of sound in a manned vehicle, Apollo 10 capsule on re-entry to earth.
6420 Meters a second on average.
Sound (unlike ocean waves) is a pressure wave, not a transverse wave. Pressure waves (as the name suggests) are waves the oscillate in the direction that they are moving, henc…e have a pressure difference. If you bang a piece of steel with a hammer, then you are momentarily changing the pressure in the steel at that point. The pressure change moves along very rapidly, and your ears pick that up as sound. Because the atoms in a solid are much closer together than the atoms in a gas, sound can travel much, much faster in a solid than a liquid or a gas.
Sound moves faster when you put it through solids then liquids then gases
The speed of sound in dry air at 20 °C (68 °F) is 343 meters per second (768 mph). There are several things that travel quicker than this speed, some being: visible lightrad…io waves travel at the speed of lightelectrical signals guided by wires typically travel at roughly 2/3 the speed of light in a vacuumsome airplanes (see the "Is there a plane that travels faster than the speed of sound?" question for more details) When someone cracks a whip, the tip of the whip travels faster than sound. The vactrain is an as-yet-unbuilt proposal for a railroad train that would travel faster than the speed of sound. Robert Goddard designed an early version in 1910. Most modern guns shoot a bullet with a muzzle velocity faster than the speed of sound; some high-velocity bullets exit the muzzle at more than four times the speed of sound. A few kinds of missiles, including many cruise missiles, can travel faster than sound. Light travels much faster than sound. For example, when lightning strikes, you can see the lightning before you hear the lightning.
yes becos the wall absove the sound
through air, fastvibrations of speech and movement
sound (or any wave for that matter) travels fastest through a solid because the molecules are more closely packed together than in a liquid or gas. waves propagate by creating… disturbances in molecules. since molecules in a solid are closer, one molecule will disturb an adjacent one sooner.