电路
Quiz
•
Science
•
2nd Grade
•
Practice Problem
•
Medium
TAN SAWKEE
Used 41+ times
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20 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
说出电路元件的名称
干电池
电线
灯泡
开关
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
说出电路元件的名称
干电池
电线
灯泡
开关
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
说出电路元件的名称
干电池
电线
灯泡
开关
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
电路中的灯泡能不能亮？为什么？
能，因为是完整电路
不能，因为干电池没电了
能，因为开关按下了
不能，因为电线没连接好
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列有关各种电路元件及其功能是正确的，除了
干电池 - 提供电能
开关 - 控制电流的流通
电线 - 让电流通过每个元件
灯泡 - 把电流转换成声能和热能
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
10.以下的说明是否正确？
当按下开关时，电路会被接通，电流通过灯泡，使灯泡发亮。
对
错
7.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
上图显示一个电路。当开关被按下后，灯泡不会发亮。以下哪几项可能是灯泡不会发亮的原因？
电路连接得不完整
灯泡的钨丝烧坏了
干电池的电源完了
开关的数量不足够
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