
完整的电路
Presentation
•
Science
•
2nd Grade
•
Hard
CY Tiong
Used 1+ times
FREE Resource
10 Slides • 0 Questions
1
完整电路
电路是把电源,开关,电器和导线连接起来组成电流的路径。
2
电路的元件
1. 灯泡:发出光亮
3
电路元件
2. 开关:接通或截断电路
4
电路元件
3. 干电池:提供电流
5
电路元件
4. 电线:让电流通过/连接电路元件
6
将电线、干电池、灯泡和开关连接起来,可以组成完整的电路
7
为什么按下开关,灯泡不亮了?
1. 灯泡坏了/灯丝烧毁了
8
为什么按下开关,灯泡不亮了?
干电池电量耗尽了
9
为什么按下开关,灯泡不亮了?
电线没有正确的进行连接
10
总结
一个完整的电路包含
1.干电池
2.灯泡
3.开关
4.电线
完整电路
电路是把电源,开关,电器和导线连接起来组成电流的路径。
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