五下15 閉合電路
Quiz
•
Life Project
•
6th Grade
•
Medium
G.S. Group
Used 8+ times
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15 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
15 mins • 7 pts
乾電池的正極和負極應該如何擺放?
隨意擺放
正極在上,負極在下
負極在上,正極在下
正負極都朝外
2.
MULTIPLE CHOICE QUESTION
30 sec • 7 pts
什麼是閉合電路?
只有乾電池的電路
只有燈泡的電路
能讓電通過的電路
電流不通過的電路
3.
MULTIPLE CHOICE QUESTION
30 sec • 7 pts
當電通過閉合電路時,燈泡會發生什麼情況?
燈泡會熄滅
燈泡會亮起來
燈泡會閃爍
燈泡會變色
4.
MULTIPLE CHOICE QUESTION
30 sec • 7 pts
一般電器的開關是通過什麼原理來操作的?
減少電阻
增加電流
改變電壓
連接電路和中斷電路
5.
MULTIPLE CHOICE QUESTION
30 sec • 7 pts
導電體是指什麼?
只在低溫下通電的物質
能讓電通過的物質
不能讓電通過的物質
只在高溫下通電的物質
6.
MULTIPLE CHOICE QUESTION
30 sec • 7 pts
以下哪一種是導電體?
塑膠
木頭
玻璃
銅
7.
MULTIPLE CHOICE QUESTION
30 sec • 7 pts
以下哪一種是絕緣體?
鐵
銅
鋁
塑膠
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