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What is Sound? – The Basics

Sound is vibration¬†through a medium such as air or water. This vibration causes a mechanical pressure and displacement of particles, the frequency of which affects the pitch and the amplitude of which affects the volume. A good analogy for sound is dropping rocks into a pond. A big rock makes large ripples (waves) and travels further. The smaller rock makes smaller ripples (waves) and doesn’t travel as far. Sound travels at 330mps.

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