初中下册第九章

Quiz
•
Science
•
8th Grade
•
Hard
YEESHIN SHIN
Used 21+ times
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12 questions
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1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
用钢棒A的一端靠近小小磁针的磁极时,磁极能自动接近钢棒;
用钢棒B的一端靠近小磁针时,磁极能自动躲开,由此可见
B 一定有磁性
B 一定没有磁性
A 一定有磁性
A 一定没有磁性
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
把铁棒甲的一端靠近铁棒乙的中部,发现两者吸引;
而把乙的一端靠近甲的中部时,两者互不吸引,则
甲有磁性,乙无磁性
甲无磁性,乙有磁性
甲、乙都有磁性
甲、乙都无磁性
3.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
下列说法正确的是
任何固体都具有良好的导电性
不容易导电的物体叫做绝缘体
常用的电热水器都用到了超导材料
铜、铁、铝都可以被磁化
4.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
下列几种物质中,不能被磁化的是
钴
铁
铜
镍
5.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
实验表明,磁铁能吸引1元硬币,对于这一现象解释正确的是
硬币一定是铁做的,因磁体能吸引铁
硬币一定是铝做的,因为磁体能吸引铝
硬币中还有磁性材料,磁化后被吸引
磁体磁性越强,能吸引的物质种类越多
6.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
下列器件中没应用磁性材料的是
计算机的储存软盘
信用卡
录音机的录音带
VCD播放器用的光碟
7.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
假如你是一名航天员,驾驶飞船登上月球,想探测月球表面附近是否有磁场,
下列工具中最理想的是
灵敏电流表
灵敏电压表
灵敏指南针
闭合导线
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