國中自然2上3-3
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Fun
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7th - 9th Grade
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Tang Da
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10 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
如附圖是臺中科學博物館千里傳音示意圖,圖中可表示出聲音的哪一個現象?
2.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
下列何者不是超聲波的應用?
3.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
對著空谷大聲說話,幾秒之後可以聽見回聲,試問回聲的產生,可以證明聲音的何種性質?
4.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
下列哪一個現象是聲音反射所造成的?
5.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
一般大型的音樂廳或歌劇院,如何消除回聲的干擾?
6.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
佑昇和爸爸去草嶺玩,來到草嶺十景中的大山壁,佑昇大吼一聲,卻沒有聽見回聲。爸爸說:「你離山壁太近了,所以無法分辨出原聲與回聲。」原聲與回聲要相隔0.1秒以上,人耳才可以分辨,試問佑昇要離山壁約多少公尺以上,才比較容易聽見回聲?(設此時聲速為340 m/s)
7.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
下列關於超聲波的敘述,何者錯誤?
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