
五常第二學期20題
Quiz
•
World Languages
•
2nd Grade
•
Practice Problem
•
Easy
Ka Chun Yuen
Used 1+ times
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20 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
物體______時會發生聲音。
噪音
振動
反彈
聽覺
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
2. 以下哪項不是聲音的特性?
聲音有不同的音調。
聲音會反彈。
聲音可以穿透透明物體。
聲音可以被物料吸收。
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
3. 我們可利用鬆軟的物料來吸收聲音,降低音量。
對。
錯。
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
4. 隔音屏障主要由________________的物料製造,能有效把聲音反彈到馬路。
鬆軟
堅硬
光滑
折射
5.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
5. 當隔壁鄰居進行裝修工程,發出噪音,以下哪項行爲可以保護聽覺?(答案可多於一個。)
把電視機的音量調大。
把耳朵貼到牆壁上。
佩戴護耳罩。
在牆上鋪設海綿。
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
鐵線圈通電後,塗在線圈上的凡士林會有甚麼變化?
發光。
可以吸引鐵製物品。
發聲。
熔化。
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
當電通過燈泡的鎢絲時,便會______________。
發光
發熱
發電
發聲
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