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Sound waves travel through any medium with the exception of vacuum. The denser the medium, the faster the sound waves travel, because the waves can be farther apart..
The molecule of the medium vibrates at the dirction in which the wave travels
You seem to be referring to sound waves. When you see the coils of a slinky become alternately close together and then farther apart you are seeing what happens to the molecules in air when a sound wave passes and compresses them then decompresses them.
Intensity
It is called sound spreading. The sound wave is strongest at the source and the wave spreads out as it is farther away
It popes
the sod makes a higher pitch
Sound waves travel through any medium with the exception of vacuum. The denser the medium, the faster the sound waves travel, because the waves can be farther apart..
The sound of jet planes move farther and farther but thunder sounds is only in one place
farther away
They are farther from the equater. the sun's rays are farther from them.
Solids.
When particles of a material move farther apart, it explodes.
The brightness of star will decrease as you observe it from farther away.
As you get farther from the center of Earth, your weight willDECREASE
The molecule of the medium vibrates at the dirction in which the wave travels
You seem to be referring to sound waves. When you see the coils of a slinky become alternately close together and then farther apart you are seeing what happens to the molecules in air when a sound wave passes and compresses them then decompresses them.