要將乾電池裝入電器的時候,不用注意乾電池正極和負極的放置方向是否正確。
4-1練習卷

Quiz
•
Science
•
4th Grade
•
Medium
Kevin Ton
Used 9+ times
FREE Resource
26 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
2.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
燈泡一個接一個串接後,再用電線連到乾電池兩端,這種連接方式稱為「燈泡串聯」。
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
乾電池的兩端都是平的,因此無法從外觀分辨正極、負極。
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
在多個燈泡並聯的電路中,每一個燈泡的亮度會不大一樣。
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
不管電路連接的方式是哪一種,只要形成通路時,每種通路中的單個燈泡亮度都會相同。
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
要使電路形成通路,要先注意電池是否有電、燈泡有沒有壞等。
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
燈泡串聯時,其中一個燈泡壞掉,其他的燈泡還是會發光。
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