
國二上理化Chap3_2聲波的產生與傳播 2024 1014
Quiz
•
Physics
•
8th Grade
•
Practice Problem
•
Medium
Sone Wang
Used 11+ times
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20 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
睡覺時,蚊子的嗡嗡聲常讓人無法安穩的睡覺,請問蚊子的嗡嗡聲是如何產生的?
是蚊子發出的超聲波
是蚊子拍手發出的聲音
是蚊子吸血時發出的聲音
是蚊子翅膀快速振動時發出的聲音。
2.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
在奧運會中有水中芭蕾的比賽項目,則舞者在水中能聽到音樂聲嗎?
能,因為水可以當作傳聲的介質
不能,因為水不可以當作傳聲的介質
能,因為音樂聲可以不經由介質傳遞
不一定,要視水的溫度而定。
3.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
月球之所以被稱為「寂靜的星球」,是因為下列何種原因?
月球引力太小
月球上的聲音被月球吸收掉
月球上缺少傳聲介質
在月球上無線電波無法傳遞。
4.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
如圖所示,用細線懸保麗龍球和正在發聲的音叉相接觸,小球會不停的跳動。當音叉發聲停止後,小球跳動的現象就隨之停止。此現象可說明下列哪件事?
保麗龍球受到靜電力
保麗龍球受到重力
音叉發出聲音時,音叉正在振動
音叉配合保麗龍球就發出聲音。
5.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
將鬧鈴放入一個玻璃鐘罩,通電使鐵鎚擊鬧鈴時,再開啟抽氣機把玻璃鐘罩中的空氣逐漸抽出,試問下列敘述何者正確?
聲音愈來愈小
聲音愈來愈大
聲音愈來愈高
聲音愈來愈低。
6.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
雙層玻璃構成的窗戶,在兩玻璃片中間應如何處理,隔音效果最佳?
填入水
填充空氣
填充氮氣
抽成真空。
7.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
將一電鈴放在裝有抽氣機的鐘罩內,通電後發現鈴鎚振動,但罩內空氣逐漸抽出後,鈴聲漸小,最後幾乎聽不到鈴聲,這是因為下列哪一項?
鈴鎚的振動頻率逐漸變高,最後超出聽覺範圍而聽不到鈴聲
鈴聲全被抽氣機抽走
鈴聲被鐘罩及空氣完全吸收,因而聽不到鈴聲
缺少空氣當傳聲的介質,以致能量不再傳到我們的耳朵。
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