5上自看見自然EP39:人聲變變變

5上自看見自然EP39:人聲變變變

Assessment

Interactive Video

Science

5th Grade

Hard

Created by

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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