
0302自然試題(第六冊1-1&1-2)
Quiz
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Physics
•
9th Grade
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Practice Problem
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31 questions
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1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
某一電路的總功率為27瓦特,其流經的電流大小為9安培,則此電路總電源的電壓為多少伏特?
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
若燈泡標示110 V、60 W,則此代表何種意義?
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
若有10庫侖的電荷在1.5伏特的電力作用下,由高電位移動到低電位,則其獲得的電能大小為多少焦耳?
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
燈泡與電池利用導線連接起來,燈泡會發出光和熱,試問其中的能量變化為何?
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
在外電路(導線)中,一個負電荷從負極到正極共損失45焦耳的電能,已知電池兩端電壓為9伏特,則負電荷帶多少庫侖的電量?
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
通常耗電量較大的電器會選用較粗的銅線作為導線,其主要原因為何?
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
將幾個材質、電阻值均不相同的電阻器並聯在同一電路中,通電一段時間後,下列敘述何者錯誤?
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