
自然習作練習

Quiz
•
Social Studies
•
8th Grade
•
Medium
徐 嘉男
Used 1+ times
FREE Resource
24 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
小明身體不舒服,拿溫度計測量體溫,結果溫度計上顯示為攝氏38度,此溫度相當於華氏幾度?
95.5
98.4
100.4
102.6
Answer explanation
華氏溫標度數=×38+32=100.4(℉)。
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
小藍想利用氣溫計測量氣溫,下列何種操作方式所量得的氣溫較為準確?
手持氣溫計頂端,站在陽光下測量
手持氣溫計底部,站在陽光下測量
手持氣溫計頂端,站在陰影處測量
手持氣溫計底部,站在陰影處測量
Answer explanation
測量氣溫時,溫度計液囊只能接觸空氣,故手持溫度計頂端;太陽若照射到液囊,將影響測量數值。
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
以相同的穩定熱源分別加熱質量為100公克的水與A物體,溫度變化如附表所示,若熱能皆被完全吸收,請問20分鐘後,A物體吸收多少卡的熱量?
2000
4000
6000
無法計算
Answer explanation
以相同穩定熱源加熱,相同時間內A物體和水所吸收的熱能相同,H=M×S×ΔT=100×1×(45-25)=2000(cal)。
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
甲、乙兩個物體的比熱與初溫如附表所示,當甲和乙接觸時,會產生什麼現象?為什麼?
熱能由甲流向乙,因為甲物體所含熱量比乙物體多
熱能由甲流向乙,因為甲物體的比熱比乙物體大
熱能由甲流向乙,因為甲物體的溫度比乙物體高
熱能由乙流向甲,因為乙物體較甲物體容易降溫
Answer explanation
熱由高溫的物體傳遞到低溫的物體。
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列哪一種現象或反應會釋放出能量?
木炭燃燒
冰熔化
酒精蒸發
植物行光合作用
Answer explanation
(B)(C)為吸收熱能;(D)植物行光合作用是吸收光能。
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
沙漠地區的日夜溫差大,這是因為下列何項原因?
地表覆蓋的沙子為固體,不易引起空氣的熱對流
沙漠地區面積廣大,熱能不易傳導
地表覆蓋的沙子比熱較小
沙漠地區都是緯度較高的地區
Answer explanation
沙子的比熱小,白天受熱時溫度容易上升,夜晚時溫度也因容易放熱而下降。
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
附圖為保溫瓶的剖面圖與各部位構造,有關保溫瓶的功能與熱傳播原理,下列敘述何者錯誤?
真空夾層可防止熱的傳導與對流
內壁鍍銀是防止熱輻射的方法
絕熱材質的瓶蓋可使熱不易因傳導與對流而散失
保溫瓶不適合保存低溫的冰水
Answer explanation
也適合保存冰水。保溫瓶是隔絕瓶內、外熱的傳播,因此瓶外的熱能也不易傳遞到瓶內。
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