
112-四下ch3
Authored by 張雅菁 張雅菁
Science
1st - 5th Grade
Used 2+ times

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20 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
看看生活中的水,大部分是由上 往下移動的,例如:由水龍頭流 下的自來水、河水。
對
錯
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
除了用抽水馬達抽水外,生活中 看不到水由下往上移動的現象。
對
錯
Answer explanation
除了電動抽水馬達使水由下往上
還有
虹吸現象
毛細現象
都能出現使水由下往上的現象
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
從實驗中發現毛細現象愈明顯的 物體愈適合用來製作防水用品, 例如:雨傘。
對
錯
Answer explanation
有毛細現象的物品
通常會吸水
不適合當雨具
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
拿一條軟水管就可以幫水族箱換 水,這是毛細現象的應用。
對
錯
Answer explanation
水族箱換水
是利用
虹吸現象
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
不小心翻倒水,拿縫隙比較小的 抹布吸水的效果會比較好。
對
錯
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
更換水族箱的水時,拿杯子將水 族箱裡的髒水舀出來,這是連通 管原理的應用。
對
錯
Answer explanation
更換水族箱
運用虹吸現象
利用"裝滿水的水管"
吸出水來
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
利用虹吸管將 水族箱的水吸 出來,因為水 會往上移動再 流出,這是連 通管原理的應用。
對
錯
Answer explanation
換水族箱
運用到
虹吸現象
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