
第三課 溫度變化與熱容量
Quiz
•
Physics
•
6th - 8th Grade
•
Practice Problem
•
Medium
Cheung Wai Man
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25 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列哪項是內能的單位?
瓦特
焦耳
攝氏度
公斤
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列哪一項是比熱容量的單位?
kW kg−1 °C
kW h kg−1
J kg−1
J kg−1 °C−1
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列各項敘述中,哪一項是正確的?
溫度是從一物件透過接觸而轉移至另一物件的能量。
熱是物體之間因溫差所轉移的能量。
內能是物體因熱傳遞而獲得的能量。
溫度、熱和內能的單位相同。
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
以下那些方法可以把能量轉移至硬幣中?
(1) 敲打硬幣
(2) 讓電流通過硬幣
(3) 加熱硬幣
只有 (1) 和 (2)
只有 (1) 和 (3)
只有 (2) 和 (3)
(1)、(2) 和 (3)
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
家強正摩擦雙手來取暖。下列哪些敘述是正確的?
(1) 能量轉移至他的雙手。
(2) 他的雙手之溫度增加。
只有 (1)
只有 (2)
(1) 和 (2)
以上皆錯誤
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
當兩個物體互相接觸時,下列哪項敘述是正確的?
(1) 它們的內能相等。
(2) 它們的分子無規運動時具有的平均動能相等。
(3) 它們的比熱容量相等。
只有 (1)
只有 (2)
只有 (1) 和 (3)
只有 (2) 和 (3)
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
一般成人平均消耗能量的功率為100 W,其中20%是人腦所消耗的。試估計每天人腦所消耗的能量。[提示 : 一天有86400秒]
20 J
7.2 × 104 J
1.73 × 106 J
8.64 × 106 J
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