保溫效果越好的材質,熱傳導的速度有什麼特性?
康軒版六上 2-3保溫與散熱-20題QUIZIZZ平時測驗題

Quiz
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Physics
•
6th Grade
•
Medium
WU CHENG TA
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20 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
傳熱的速度都一樣
傳熱速度越慢
傳熱速度越快
保溫效果和傳熱速度無關
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列哪一種碗裝熱湯後,會最燙手呢?
木碗
鐵碗
保麗龍碗
不論用什麼樣的材質裝熱湯,感覺都一樣燙
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列哪一個方法無法讓一鍋熱湯快點變涼?
把整個鍋子底部浸泡在冷水中
蓋上鍋蓋
用電風扇吹
換一個開口大一點的鍋子
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
大雄肚子餓,於是煮了湯麵吃,卻因為太燙沒辦法立刻入口。這時大雄可以用什麼方法既符合衛生又能快點降低湯麵的溫度?
打開水龍頭,在湯麵裡加入冷水
把湯麵放進微波爐裡
把湯麵放到保麗龍盒中
用嘴對著湯麵吹
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
如果想知道用扇子搧風是否會使剛煮好的泡麵涼得比較快,進行實驗時,要改變的因素是下列哪一個?
泡麵的品牌
是否使用扇子搧風
加入泡麵裡的熱水溫度
加入泡麵裡的熱水水量
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
分別將250毫升的熱水倒入三種材質和大小相同,但開口直徑大小不同的容器中,5分鐘後,哪一個容器的水溫最低?
開口直徑5公分的容器
開口直徑12公分的容器
開口直徑8公分的容器
三種容器裡的水溫都一樣
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
把裝熱水的杯子放進冷水中,主要是利用哪些熱傳播的方式來幫助散熱?
傳導和對流
對流和輻射
輻射和傳導
折射和反射
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