wat is a sound?

Answer 1

Sound is a kind of energy.It's actually vibration.

Answer 2

"A sound" ?

A sound is a wave, which transfers energy through a medium ( gas, liquid ,solid, NOT Vaccuum).

Sound is a longitudinal wave, which means when it passese through a particle medium, the particles vibrate in the direction in which the wave travels, unlike light.

When you speak, a pressure variation is created in your throat, as you blow air through what they call Adam's apple. This causes air molecules to vibrate, and transfer energy to the molecules just next to them, thus forming bands of compressions and rarefactions.

SOOOOO......OOOOO........OOOOO........

Here, if S is source of sound, the O's represent areas where molecules are compressed together( higher pressure), and dots represent areas where pressure is low.

QUOTE:

"
Sound is molecules banging into other molecules. A
simple example is a slinky stretched across the front of the room. Push on
one end back and forth into the slinky, not side-to-side or up-and-down.
Each loop pushes on the next loop. The motion started at one end eventually
reaches the other end. This is just how sound travels. Vibrations at a
speaker bang into molecules, perhaps air molecules. These bang into the
next molecules. This continues until air molecules bang into your eardrum...

"
from http://www.newton.dep.anl.gov/askasci/phy00/phy00554.htm

also,

http://www.howstuffworks.com/hearing.htm

Answer 3

Sound is the vibrations generated by any force on its surrounding environment and is created when any object using any form of energy disturbs the outer membrane molecules of a second object and creates vibrations. These vibrations follow a path and can be "heard" because of the resonance they inflict.

Answer 4

sound is a vibration of air, resulting in a wave interpretted by fine hairs in our ear, among other things, as a distinct signature. The reason is that air is a liquid, in many respects, and as such, is a transitional wave, that carries this signature like waves on a pond.

Answer 5

pressure waves that go through the air around us. Our ears are designed to sense these vibrations and transmit them to our brains as sound.

These waves uses air molecules to travel through the air, which is why sound doesn't exist in space.

Answer 6

Sound is energy. Kinetik energy, if you scream the vibration of your vocal chords hits the air mollecules and travells away. If it hits a hard surface it bounces back (echoe).
If youclap your hands the same thing happens, your two hands are potential energy, when you clap them, the energy of the movement of your arms and hands(kinetic energy) is transferred to your hands hitting, and when they hit, that energy is transfered into sound (by the collision of your open hands hitting each other) .

Answer 7

sound is a pattern of vibrations, they can only travel through matter and they travel best throuh solids because they are the most dense. sound can only exist where there is matter to vibrate through, that is why there is no sound in the empty vacuum of space

Answer 8

Anything that can be heard by ears of human being/animals

Answer 9

a pressure wave.

Answer 10

waves.