If you blow across the top of a straw, a sound is made. How could you increase the pitch of the sound?
回答 (2)
2016-03-01 6:27 am
blow harder.
as air travel faster across the straw, the pitch goes up.
as air travel faster across the straw, the pitch goes up.
2016-03-01 5:46 am
If you blow across the top of a straw, a sound is made. How could you increase the pitch of the sound? How do we know, without taking any measurements, that light travels through air faster than sound?
收錄日期: 2021-04-11 21:21:55
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