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Sound is created when something vibrates and sends waves of energy (vibration) into our ears. The vibrations travel through the air or another medium (solid, liquid or gas) to the ear. The stronger the vibrations, the louder the sound. Sounds are fainter the further you get from the sound source. Sound changes depending on how fast or slow an object…

What is a decibel and how are sound levels measured? You may already know that sound is measured in decibels. Decibels, written as dB, help us measure how strong or intense a sound is. The decibel scale is a bit unusual because it has to cover a huge range of sounds that our ears can…