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WorksheetsStatic Charge and Current
Total questions: 10
Worksheet time: 2hrs 40mins
What is the force between two protons?
frictional
neutral
attractive
repulsive
What happens when two materials are charged by rubbing against each other?
both lose electrons
both gain electrons
one loses electrons
no movement of electrons
Which of the following materials are good insulators?
copper and gold
wood and glass
gold and aluminum
plastic and copper
Which switches must be closed for both the bell to ring and the lamp to light?
1 and 4 only
2 and 3 only
1, 2 and 3 only
1, 2, 3 and 4
Which statement does NOT describe how electric changes affect each other?
positive and negative charges attract
positive and negative charges repel
two positive charges repel
two negative charges repel
关于电源和电流，下列说法中正确的是
电流是由大量电荷的无规则运动形成的
电源外部，电流是从电源的正极流向负极
在电路中只要有电源，就一定会有电流
电路中电子移动的方向就是电流的方向
甲、乙、丙三个轻质小球，两两相互吸引，其中一个是带电体，则下列说法正确的是
甲一定带正电，乙一定带负电，丙一定不带电
甲一定带负电，乙一定带正电，丙一定不带电
三个小球中肯定有一个不带电
肯定甲不带电
如图所示，开关s闭合时，电路可能发生的情况是
灯L1发光，L2不发光
电池被烧坏
灯L1灯丝被烧坏
灯L2灯丝被烧坏
电路中有两只灯泡，当开关闭合时两盏灯同时亮，断开时两盏灯同时熄灭，说
明这两盏灯的连接是
一定是串联
一定是并联
可能是串联或并联
以上说法都不对
如图所示，开关由闭合到断开，电流表A1、A2的示数I1、I2
的变化是
I1变小、I2变大
I1不变、I2变大
I1变大、I2变小
I1不变、I2变小
