Nothing. That IS how a sound wave is propagated.
They rapidly compress and rarefy in the direction of the sound wave as the wave travels.
compression
The characteristics of a sound wave is the Amplitude, Frequency, Wavelength, time period, and velocity. The sound wave itself is a longitudinal wave that shows the rarefactions and compressions of a sound wave.
Loudness is the quality of a sound that is the primary psychological correlate of physical strength or amplitude. Loudness is a subjective felt impression and is in some way related to the objective measure of the sound pressure. Neither our ear drums nor the microphone diaphragms can convert acoustic intensity. Therefore only use the sound pressure for measuring. To measure the loudness feeling is a difficult thing. The loudness of 1 sone equals the loudness level of 40 phons (at 1 kHz).
A sound wave's pitch is determined by its frequency; that is its cycles per unit of time. The sound wave's intensity or volume is determined by its amplitude; the maximum crest of a sound wave.
As sound travels, air molecules are compressed and rarefied in a wave-like pattern. When a sound wave passes through a medium like air, the molecules vibrate back and forth in the direction of the wave, transmitting the sound energy. This vibration causes changes in pressure that our ears detect as sound.
Sound waves that are compressed are made of (air) molecules that are more densely concentrated - that is (ie) more molecules are packed into the space of the compressed wave than there are in the (same) space of the surrounding expanded waves.
Air is compressed in a sound wave at the regions of high pressure, known as compressions. These compressions are created by the vibrations of a sound source, which causes air molecules to move closer together. The areas of low pressure, known as rarefactions, occur in between the compressions where air molecules are more spread out.
a sound wave is the movement of the molecules of the material, so no molecules no sound wave.
As regards the ones on thie inside, the air atoms and molecules (yes, there are both 'cause air is a mixture of gases) are compressed on the inside of the ball. They are compressed in the area adjacent to the surface that is being compressed, and the compression wave travels across the inside of the ball to the other side and rebounds. Yes, a wave will result from the compression of one side of the ball. And that compression wave moves really fast in there. Like about the speed of sound.
Sound molecules traveling through air is an example of a longitudinal wave. It moves parallel to the direction of wave propagation.
the air molecules
A longitudinal wave such as a sound wave.
A sound wave is simply a vibration in the air molecules, or the molecules of some other substance. This vibration propagates as a wave, the energy gets transferred somewhere else.
A sound wave is simply a vibration in the air molecules, or the molecules of some other substance. This vibration propagates as a wave, the energy gets transferred somewhere else.
Sound waves are compression waves because the molecules of air are compressed.
They rapidly compress and rarefy in the direction of the sound wave as the wave travels.