z自然6-5

z自然6-5

Assessment

Assessment

Created by

林愛羣 林愛羣

English

8th Grade

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19 questions

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1.

Multiple Choice

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

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

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

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

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

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