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Erstellt von Claryss Ngai Ze Yan
vor fast 7 Jahre
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Frage | Antworten |
how do we hear | sound wave inside our ears vibrate |
Can we hear in outer space? | no because there are no partical in space |
what is echo? | a reflection of sound |
what is the unit of sound? | decible |
what is a pitch? | a sound can be high or low, is referred to as a pitch |
what is sound produce by? | it is produce by vibration |
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