
期末考复习

Quiz
•
Science
•
6th - 8th Grade
•
Easy
宋 Dina
Used 4+ times
FREE Resource
20 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
静电是指物体之间由于____而产生的电荷积聚。
磁场
电场
摩擦
导电
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
电脑显示屏的表面很容易带上灰尘,这是因为_____。
显示屏是用具有较强吸附灰尘能力的材料制成的
房间里灰尘的自然堆积
显示屏工作时,显示屏表面带电,容易吸附灰尘
显示屏工作时,显示屏表面温度较高
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
以下哪个是常见的静电放电现象?
闪电
声波
磁力
光线
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
电流怎样形成?
电荷的流动
电荷的积聚
电场的产生
电荷的摩擦
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
在电流中,导体中的电子的流动方向是___。
与电流方向相同
与电流方向相反
与电流方向无关
不确定
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
在电路中,哪个元件用于控制电流的方向?
电阻
电容
电压
开关
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列选项中不属于摩擦起电现象的是____。
用头发摩擦过的钢笔杆能够将碎纸屑吸引过来
磁铁能把钢针吸引过来
用干燥的毛刷刷毛料衣服时,毛刷上吸附着许多细微赃物
用干燥的天气中脱毛绒衣时,听到轻微的“噼啪”声,甚至在夜晚能看见火花
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