
課題11 選擇
Quiz
•
Science
•
1st - 5th Grade
•
Practice Problem
•
Easy
WaiIeng Mok
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8 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
以下哪項電器,能將電轉化成熱?
電視機
電熱水壺
洗衣機
音響
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
以下哪項電器,能將電轉化成光?
洗衣機
吸塵機
電燈泡
風扇
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
以下哪項電器,能將電轉化成動力?
微波爐
吸塵機
電視機
電磁爐
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
電風扇是電轉換為?
光
動力
熱
磁
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
電熱水壺是電轉換為?
光
動力
熱
磁
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
音響是電轉換為?
光
動力
熱
磁(聲音)
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列哪種材料可以作為電磁鐵中間的金屬棒?
鋁
鐵
銅
8.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
如何能改變電磁鐵的極性?
增加電流
增加電壓
改變電流方向
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