第五单元 - 电 part 1
Quiz
•
Physics
•
4th - 6th Grade
•
Practice Problem
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Medium
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8 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
以下是有关Q电源的资料,下列哪项是Q电源?
I - 能的转变是势能转换去动能在转换去电能。
II - 能产生大量的电量
III - 坏处是会破坏生态环境和建造成本高
发电机
小型发电机
水力发电站
蓄电池
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
以下哪个电源是供应能量给交通工具的?
电池
蓄电池
发电机
太阳能电池
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
图片显示一种发电的能源,这个电源的用途是什么?
供应电能给较小的用具如玩具车
供应电能给住家和小型工厂
供应电能给流动小贩们,已解决他们没有电能的问题
供应电能给自行车车灯,以便在夜晚时能看清道路的情况
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
一个完整的电路必须具备什么元件?
灯泡、电线和电池
开关、灯泡、电线和电池
开关、灯泡、电线、电池和电板
开关、灯泡、电线、电池和电风扇
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
图片显示一个完整电路。以下哪项是M元件的符号?
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
下例哪项能增加以上电路的灯泡亮度?
在电路里加上开关
增加灯泡的数量
增加多一条电线
增加干电池的数量
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
图片显示一种电路里的元件,以下哪项是缺乏此元件的后果?
电路里的开关会无法使用
电路里的灯泡不会发亮
电路里的电流会被截断
电路里的灯泡亮度会减少
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