Question

When a sound is made , what happens to the particles in the regions of air nearby that are called : rare fractions

Answer 1

Explanation:

Compression- a region in a longitudinal (sound) wave where the particles are closest together. Rarefaction- a region in a longitudinal (sound) wave where the particles are furthest apart. Wave motion and particles. Waves move at different speeds through different kinds of matter.

Answer 2

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When a sound is made, what happens to the particles in the regions of air nearby that are called rare fractions ?

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When a sound is made the particles in the region nearby that area called rare fractions, are compressed.

Longitudinal waves are made up of compressions and rarefactions. Compression happens when molecules are forced, or pressed, together. Rarefaction is just the opposite, it occurs when molecules are given extra space and allowed to expand. So, the longitudinal movement of air molecules produces pressure fluctuations which results in compression and rarefaction.