
南一國小自然6上ch2-3
Quiz
•
Science
•
6th Grade
•
Practice Problem
•
Medium
南一 自然
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
為什麼保溫瓶的中間會有一層真空層的設計?
讓保溫瓶重量增加
抽去可傳熱的空氣
販售的價錢可以較便宜
使保溫瓶不易損壞
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
用下列哪種材質製作保溫袋的內層對減少熱輻射的作用最有幫助?
保麗龍
泡棉
塑膠
鋁箔
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
如果將兩杯相同的熱水分別放在桌上和蓋緊的保麗龍盒中,哪一杯熱水的降溫速度比較慢?
放在桌上的
放在保麗龍盒中的
兩杯速度一樣慢
兩杯水都不會降溫
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
購買冰品時,有時店家會用保麗龍箱來包裝。這樣做的主要原因是什麼?
保麗龍材質可以減少熱傳導
保麗龍材質比較重
外觀看起來比較漂亮
配合政府的規定
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列哪一項不是「保溫」的例子?
用保麗龍盒裝冰棒
把熱水裝在保溫瓶裡
買鮮奶時,把冰鮮奶放在保溫袋裡
裝設冷氣時,將冷氣設置在房間高處
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列哪個方法不能加快熱的傳播速度?
撈起湯麵裡的麵條並吹氣
關掉教室裡的電扇
在屋頂上設置通風器
把房間的窗戶打開加強通風
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
吃麵時,如果想讓麵的溫度快點變低,下列哪一種做法最適當?
在碗裡加熱水
用蓋子把麵蓋住
把麵夾起來,用電風扇吹
把麵放進保溫袋裡
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