
南一國小自然4下_ch3-3
Authored by 南一 自然
Science
4th Grade
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
想要利用軟水管幫水族箱換水時,哪一種方法可以使軟水管內充滿水,而且最方便衛生?
將軟水管一端插入水族箱中,用嘴由另一端吹氣
將軟水管一端插入水族箱中,用嘴由另一端吸氣
將整個軟水管放入水中
將水族箱內的水倒入軟水管中
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
光光拿了一條軟水管幫水族箱換水時,水管中需要充滿什麼東西?
空氣
泥沙
水
水泥
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
小強和阿文分別用水管進行虹吸現象的實驗,小強的水管裡充滿空氣,阿文的水管則充滿水,請問哪一個人的水流動的比較順暢?
小強
阿文
速度一樣
都不會流動
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
曉諭利用水管來替水族箱換水時,若在水流出後將出水口的位置拉高到水面以上,會發生什麼情形?
水繼續流出,直到水族箱的水流完
水不再流出,反向流回水族箱中
水斷斷續續的流出,但仍會流完
水管內的水仍然靜止不動
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
自然科學的應用在生活中處處可見,下列哪一個應用與水的虹吸現象有關?
用水管將汽車油箱內的汽油抽出來
有些吸管可以彎曲成L形
用衛生紙擦拭桌面的飲料
茶壺水位的高度
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
利用裝滿水的水管幫水族箱換水時,可以控制水流的方向,請問該如何做到?
減少水管的長度
增加水管的長度
調整水管的管徑大小
調整出水口位置的高低
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
「用充滿水的水管連接兩個容器,當水管的出水口低於放置入水口容器的水面,入水口的水會沿著彎曲的水管上升再流向出水口,這個現象稱為★。」上句中的★應填入什麼?
浮力作用
虹吸現象
溶解現象
反射現象
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