
波動與聲音的測驗1126
Authored by 楊 秉正
Science
9th Grade
Used 4+ times

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17 questions
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1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
下列波動種類,哪一種屬於力學波?
聲波
光波
無線電波
電磁波
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
如右圖,在繩子左端產生一波動,已知週期是1秒,則經過5秒後,此波的波形為下列何者?
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
泰瑞站在河岸邊欣賞風景時,但頭上的帽子一不小心被風吹到河面上,他馬上用手擊打水面,想利用水波將帽子拍回岸邊,請問這方法是否可行?
可行,但要快速地拍動才行
可行,但帽子也有可能愈漂愈遠
不可行,水波並不能使帽子漂回岸邊
不可行,帽子會隨著水波遠離岸邊
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
如圖所示,下列有關此波的敘述何者錯誤?
此種波形為縱波
a、b兩點間的距離叫做波長
b、c兩點間的距離叫做波長
介質振動方向和波前進方向平行
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
圖為某繩波的波形,該波的振幅與波長分別為何?
20 公分,20 公分
10 公分,10 公分
20 公分,10 公分
10 公分,20 公分
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
海面上有一艘漁船發生爆炸,請問此時是漁船水面下1500公尺處的潛水艇先偵測到爆炸聲,還是漁船上方1500公尺的直昇機上的士兵先聽到爆炸聲?
潛水艇
士兵
同時偵測到與聽到
只有直昇機上的士兵能聽到爆炸聲
7.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
下列關於聲波傳播的敘述,何者正確?
氣溫升高時,聲波速率降低
聲波在冰及水中之傳播速率相同
不同振動體產生的聲音,在空氣中的傳播速率相同
聲波不需要依靠介質傳播
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