
自然U3
Authored by 蔡怡俊 蔡怡俊
Education
5th Grade
Used 5+ times

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25 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
點燃三支大小相同的蠟燭,分別蓋上大、中、小三個不同容量的廣口瓶。請問哪一個廣口瓶內的燭火會最快熄滅?
大廣口瓶
中廣口瓶
小廣口瓶
三個廣口瓶中的燭火會同時熄滅。
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
下列哪一種方法可以使罩在廣口瓶內的燭火繼續燃燒?
放入更多的蠟燭
在廣口瓶外再罩一個更大的玻璃箱
把廣口瓶移開
把廣口瓶換成鋼杯。
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
用廣口瓶逐漸往下罩住燃燒中的蠟燭,燭火會有什麼變化?
燭火馬上熄滅
燭火會逐漸變大,然後熄滅
燭火會逐漸變小,然後熄滅
沒有任何變化。
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
下列哪一種做法,無法使物體停止燃燒?
移除可燃物
隔絕助燃物
降低溫度
提供更多空氣。
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
火災時,消防隊噴灑水柱滅火,主要是利用什麼原理來撲滅火災?
將可燃物移除
使空氣能更加流通
降低溫度
化學作用。
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
營火晚會結束時,營火仍然在燃燒,下列哪一種方法主要是利用降低溫度的原理來熄滅營火?
等木材慢慢燒完
澆水熄滅營火
用土蓋起來熄滅營火
把木材移開。
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
炒菜時如果油鍋著火了,可以利用下列哪一種方法滅火?
趕快潑冷水
打開抽油煙機
用電風扇吹熄
關熄瓦斯並蓋上鍋蓋。
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