
科学 电
Quiz
•
Science
•
4th Grade
•
Hard
LEE Moe
FREE Resource
119 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
以下哪一件物件可以在完整电路里代替开关?
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
哪项能提供电流?
开关
灯泡
电线
干电池
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
以上的电路中灯泡没发亮的主要原因是什么?请仔细观察图片。
灯泡坏了
开关没按下接通
电线断了
干电池坏了
4.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
以上是个完整电路,可是为什么灯泡不发亮?选出两个最有可能的原因。
灯泡坏了
灯泡不够大
干电池没电了
干电池不够大
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
以上完整电路中的灯泡不发亮最有可能的原因是_________________。
干电池没电了
灯泡坏了
开关没按下
电线没接好
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
电的绝缘体( )让电流通过,灯泡( )发亮。
能 、 不能
不能 、 能
能 、 能
不能 、 不能
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
以下哪个不是电的绝缘体?
橡皮
盐水
食油
毛巾
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