Production of sound | Mechanical waves and sound | Physics | Khan Academy
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Production of sound | Mechanical waves and sound | Physics | Khan Academy
Sound is vibrating air. But how does the air start vibrating? Created by David SantoPietro. Watch the next lesson: https://www.khanacademy.org/science/physics/mechanical-waves-and-sound/sound-topic/v/sound-properties-amplitude-period-frequency-wavelength?utm_source=YT&utm_medium=Desc&utm_campaign=physics Missed the previous lesson? https://www ...
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U and its sounds The letter “U”! It’s a fascinating vowel because it can make quite a few different sounds. Let’s explore them: * The Short “U” Sound: This is probably the most common sound, like in the words “up,” “under,” “us,” “utter,” and “umbrella.” It’s a quick, unstressed sound. * The Long “U” Sound (pronounced /juː/): This sound is the same as saying the letter “U” itself. You hear it in words like “use,” “unit,” “uniform,” “usual,” and “unicorn.” Notice how often this sound appears at t
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