上图显示一个电路。
电路中的元件Y有什么功能?
五年级科学 电
Quiz
•
Science
•
5th Grade
•
Medium
Alice Thai
Used 6+ times
FREE Resource
20 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
上图显示一个电路。
电路中的元件Y有什么功能?
让电流通过
提供充足的电流
测试灯泡的亮度
接通与截断电路
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
以下哪个是元件两个电池的符号?
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
以上显示电路M。
以下哪项是电路M电路图?
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
什么是并联电路?
电路元件依次连接起来的电路
电路元件并列连接在一起的电路
开关只是控制连接着的电路元件
电流分开传送到连接着的电路元件
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
上图显示一个电路图。
根据上述电路图,按下哪几个开关后,灯泡 J 会发亮?
I 和 III
i 和 IV
I 、II 和 IV
II 、 III 和 IV
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
以下哪个电路中的灯泡最亮?
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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