
z自然6-5
Quiz
•
English
•
8th Grade
•
Practice Problem
•
Medium

林愛羣 林愛羣
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19 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
氣泡由水底上升的過程中,下列何者正確?
壓力漸大,體積變小,浮力變小
壓力漸小,體積變大,浮力變大
壓力不變,體積不變,浮力不變
壓力漸小,體積變大,浮力變小
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
甲、乙兩個完全相同杯子均「盛滿」水銀(密度為 13.6 g/cm3),分別在甲、乙兩杯放入「等體積」的金球(密度為 19.3 g/cm3)和鋁球(密度為 2.7 g/cm3),則何者杯底所受的「平均壓力」較大?
甲杯
乙杯
相同
無法確定
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
將甲、乙、丙三顆相同重量、不同體積的球分別放入裝有等量水的三個相同燒杯中,三顆球皆浮於水面上,且燒杯內的水皆沒有溢出。若甲、乙、丙沒入水中的體積分別占其總體積的
、 、 ,且皆不與水發生化學反應,各燒杯底部所受液體的壓力分別為 P甲、P乙、P丙,則其大小關係應為下列何者?〔100. 基測Ⅱ〕
P甲>P乙>P丙
P甲<P乙<P丙
P甲=P乙=P丙
P甲>P丙>P乙
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
有一氣泡由水面下 10 米處上升過程中,所受浮力與水壓力之變化,下列何者正確?
浮力愈來愈大
浮力愈來愈小
水壓力愈來愈大
水壓力維持不變
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
等體積的甲、乙兩物體,甲的密度為 3 g/cm3,乙的密度為 2 g/cm3,將其分別沉入水中,則甲、乙所受浮力比為何?
03:02
02:03
01:01
06:01
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
已知鐵的密度比石頭大,今將質量相同的實心鐵球與石頭放入水中,則所受的浮力如何?
鐵球較大
石頭較大
兩者相同
無法比較
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
某物體之質量為 100 公克,當其完全沒入水中時的重量為 80 公克重,則此物體的密度是多少公克/立方公分?
1.25
2.5
5
10
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