有三支長約為1公尺的玻璃管,一端封閉而另一端開口,現將開口端倒插於水銀槽中,管內外的水銀面高度如附圖所示,若當時的大氣壓力為1 atm,則管內氣體壓力大小關係為何?
107國中自然2下_6-4

Quiz
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Other
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7th - 9th Grade
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Medium

Yu Liu
Used 5+ times
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
C>B>A
C=B=A
B>C>A
A>B>C
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
已知水壓會隨著深度增加而增加,大約每增加10公尺就會增加1大氣壓,如果某種魚類最大的抗壓力為5大氣壓,則此種魚至多可以潛入多深的水域?
30公尺
40公尺
50公尺
60公尺
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
有關大氣壓力的敘述,下列何者錯誤?
大氣壓力是由大氣層重量所引起的
大氣壓力會因地點不同而不同
早晚的氣壓可能有所改變
氣體的壓力與接觸面成平行
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
有關大氣壓力的敘述,下列何者錯誤?
大氣壓力為空氣分子重量所造成,所以各地的壓力皆相同
如果沒有大氣壓力的存在,我們很難用吸管喝果汁
一大氣壓=76 cm高的水銀柱=每平方公分受力1033.6公克重
托里切利利用水銀柱的高度差,測得大氣壓力的大小
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
在1 atm下,若將托里切利實驗中,半徑1 cm的玻璃管更換成半徑2 cm的玻璃管,則水銀柱的垂直高度將為多少cm?
152
76
38
19
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
小雅用四根管子裝入水銀,倒插於水銀槽中。已知其中甲、乙兩管直立於槽中之液面,丁管上半部為真空,且乙、丙、丁三管內部之液面在同一高度,如附圖所示。下列何者為當時的氣壓?
70 cmHg
76 cmHg
80 cmHg
90 cmHg
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
康康吃冰時喜歡加煉乳,當他欲從罐內倒出煉乳時,一定會在罐頭上至少鑿兩個洞,請問這是什麼原因?
在真空狀態下,煉乳較易流出
兩個洞的總面積較大,煉乳較易流出
使內外兩側大氣壓力相等,煉乳較易流出
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