
202202242.4機械溫習
Authored by kwok ng
Science
6th Grade
Used 4+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
比較人手耕作,利用畜力耕作有甚麼壞處?
力量較小
生產力較低
需要飼養牲畜
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
比較畜力,水力推動機械最大的限制是....
力量不夠大
不夠穩定
地理位置受到很大的限制
3.
FILL IN THE BLANK QUESTION
1 min • 1 pt
紐科門式蒸氣機的原理,是當水注入氣缸時會令氣缸出現局部_______,令活塞出現向下的動力。
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
以下哪項不是瓦特為蒸汽機加入分離式冷凝器後的好處?
減少耗費燃料和蒸汽
令活塞由直線運動,變成圓周運動。
加快活塞轉動的速度
減少蒸汽機損壞的頻率
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
以下哪一項不是瓦特的蒸汽機可以推動的機械?
抽水裝置
火車
紡織機
冷氣機
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
比較改良蒸汽機和風力推動機械,風力推動機械的好處是...
生產力較穩定
生產力不再受自然限制
較環保
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
電燈的發明促成第幾次工業革命?
第一
第二
第三
第四
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