
南一國中自然8上ch5-2
Authored by 南一 自然
Science
8th Grade
Used 16+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
如果要探討水的質量和它受熱後溫度變化的關係,則應該控制的變因是:
質量
溫度
質量和溫度
加熱時間
2.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
1公克4℃的水所含的熱量為:
4卡
24卡
0卡
比0℃、1g的水多4卡
3.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
下列有關熱的敘述何者錯誤?
熱是一種會流動的物質
熱可以使物體的溫度改變
熱可以使物體的狀態改變
物體的溫度升高,表示吸收了熱量
4.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
振成想喝咖啡,將25℃、400公克的水煮沸,若瓦斯爐每分鐘供熱1000卡,預估幾分鐘後才能沖泡?
10
20
30
40
5.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
比熱為0.113cal/g·℃的鐵塊質量為20公克,溫度由30℃上升到40℃時,吸熱:
11.3卡
22.6卡
33.9卡
45.2卡
6.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
取50g的水,溫度由75℃變化到50℃,則水:
吸熱2卡
放熱6.25×103卡
放熱1.25×103卡
吸熱1.25×103卡
7.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
烈日下,碎石塊比池水熱。若碎石比熱S1,水之比熱S2,則二者的大小比較為:
S1>S2
S1=S2
S1<S2
不一定
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