
B5-第二段習作測驗1126
Quiz
•
Science
•
9th Grade
•
Practice Problem
•
Medium
楊 秉正
Used 2+ times
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45 questions
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1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
沛沛在遊樂場中搭乘旋轉秋千,秋千繞著O點做平行地面的等速率圓周運動,如圖所示。請問當秋千在M處時,其所受到的向心力方向應為下列何者?
甲
乙
丙
丁
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
右圖為一顆行星以橢圓形軌道繞著太陽運行,當行星在甲、乙、丙三個位置時,與太陽的距離分別為R 甲、R 乙、R 丙,此時兩者之間的萬有引力大小分別為F 甲、F 乙、F 丙。若運行的過程中,太陽與行星的質量變化忽略不計,且R 甲>R 乙>R 丙,則下列關係何者正確?
F 甲<F 乙<F 丙
F 甲=F 乙=F 丙
F 甲>F 乙>F 丙
F 甲=F 丙 ≠ F 乙
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
已知木星上的重力加速度大約是地球的2.5倍,下列敘述何者正確?
同一物體,在地球和木星上的重量相同
同一物體,在地球上的重量約為在木星上重量的2.5倍
同一物體,在地球和木星上的質量相同
同一物體,在地球上的質量約為在木星上質量的2.5倍
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
逆時鐘旋轉淋溼的雨傘,當轉速加快到某一程度時,甲點的水滴會沿著雨傘邊緣的哪個方向飛離?
a
b
c
d
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
拍打西瓜,並仔細聽從西瓜傳出的聲音來辨別西瓜內部狀況,這種方式最類似下列哪一種探測地球內部構造的方法?
利用地震波探測
挖鑿深井
測量各地重力
分析岩漿成分
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
請問地核主要是由下列何種物質組成?
密度較大的岩石
熔融的岩漿
鐵、鎳金屬
黃金、白銀
7.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
板塊運動、岩漿活動等內營力作用,主要是下列何者驅動的?
海水流動的力量
地表吸收太陽熱能傳導至地球內部
太陽與地球之間的萬有引力
地球內部熱能造成的熱對流
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