為什麼倒置的玻璃杯中的水不會漏出?

大氣壓力與真空實驗

Interactive Video
•
Chemistry
•
1st Grade
•
Hard
李靜怡 李靜怡
FREE Resource
5 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
因為大氣壓力
因為水的表面張力
因為玻璃杯的形狀
因為水的粘性
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
水銀柱的高度是否會因為玻璃管的厚度而改變?
不會,因為厚度增加會減少水銀的重量
會,因為厚度增加會減少壓力
會,因為厚度增加會增加壓力
不會,因為壓力只與深度有關
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
在真空實驗中,為什麼兩個半球會緊密結合?
因為內部壓力和外部壓力都很低
因為內部壓力大於外部壓力
因為外部壓力大於內部壓力
因為內部壓力等於外部壓力
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
當注射器的活塞被推入時,氣體的壓力會怎樣變化?
壓力減小
壓力先增加後減小
壓力不變
壓力增加
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
吸管中的液體是如何被吸上來的?
因為吸管內部的壓力等於外部壓力
因為吸管內部的壓力和外部壓力都很低
因為吸管內部的壓力大於外部壓力
因為吸管內部的壓力小於外部壓力
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