
5up-3

Quiz
•
Science
•
5th Grade
•
Medium
陳 韻如
Used 2+ times
FREE Resource
20 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
製造碳酸飲料時,會在過程中加入下列哪一種氣體?
氧氣
二氧化碳
水蒸氣
臭氧
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
關於二氧化碳的特性哪一項正確?
具有助燃性
加入澄清石灰水後,石灰水會變得混濁
氣體呈現微紅色
與乙炔混合燃燒可以切割鋼材
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
哪一項是二氧化碳的應用?
麵團裡的酵母菌發酵後產生的氣體可使麵包蓬鬆
混合乙炔燃燒切割鋼材
灌入塑膠袋中讓魚維持生命
烤肉時將爐門打開
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
將裝水的紙杯放在燃燒的燭火上,為什麼紙杯不會燃燒?
沒有助燃物
沒有可燃物
溫度未達紙杯燃點
紙杯為不可燃物
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
哪一種火災發生時,可以用水來滅火?
加油站起火
油炸鍋起火
森林大火
捕蚊燈使用時電線起火
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
「釜底抽薪」是指從鍋底下將柴抽掉,使火無法燃燒,用來比喻從根本解決問題。請問「釜底抽薪」這種滅火方法的原理和下列何者比較相似?
消防員用水柱將火澆熄
營火晚會結束後,工作人員用沙土蓋熄營火
做完自然實驗後,小佐用蓋子將點燃的酒精燈蓋熄
瓦斯爐上的水沸騰了,小奇將瓦斯關掉
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
將敲打後的音叉接觸放著小紙片的紙張時,為什麼紙張上的小紙片會彈起來?
因為音叉具有磁力
因為音叉振動時產生風,風會吹起小紙片
因為小紙片聽到音叉的聲音就會跳起來
將敲打後的音叉接觸紙張時會使紙張一起振動
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