作业帮how sound is made
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how sound is made
how sound is made
how sound is made
声音时如何产生的
Sounds are made by vibration. When something vibrates it creates waves that pass through the air.
Musical instruments make sounds by striking, blowing, plucking or by playing with a bow.
Some ...
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Sounds are made by vibration. When something vibrates it creates waves that pass through the air.
Musical instruments make sounds by striking, blowing, plucking or by playing with a bow.
Some sounds are created electronically.
Sounds can be made by vibrating an object. For example, when a drumstick hits a drum, the flexible skin of the drum vibrates up and down. The skin's vibration makes a sound by moving the air above it. When the skin moves up, the air above it is compressed and when the skin moves down the air moves with it and expands. The compressing and expanding of the air produces differences in air pressure. The pressure differences in the air move away from the drum surface like ripples in a pond, creating a sound wave. This is how the drum produces a sound that we can hear.
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楼上的好棒，回答者：portiawyy 顶！
声音是怎样形成的？