
5上自看見自然EP39:人聲變變變
Interactive Video
•
Science
•
5th Grade
•
Hard
Hui M
FREE Resource
4 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
男生普遍嗓音比女生低沉的原因會是什麼?
男生聲帶比女生長
男生音頻比女生高
男生聲帶比女生薄
男生聲帶比女生短
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
聲帶發出聲音的原理是什麼?
氣流通過聲門時,聲帶黏膜產生波動並振動空氣形成聲波
聲帶肌肉收縮和鬆緊,直接產生聲波
肺部呼出空氣時,直接產生聲波
聲帶黏膜的厚度變化,導致音調改變
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
聲帶的哪個特性會導致音調較高?
聲帶較厚
聲帶較長
聲帶較薄
聲帶較短
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
烏克麗麗的弦越緊,音調會如何變化?
音調會變低
音調會變高
音調不會改變
音量會變小
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