论文部分内容阅读
电场一章基本概念多、基本规律多,既是电学的基础,又是电学的重点内容,也是历年来高考命题选材的重点.之所以受到高考命题者的青睐,关键在于它与力学知识、恒定电流、磁场等知识联系紧密.如2005年全国高考理综新课程卷第25题是涉及恒定电流、带电粒子在电场中的偏转、圆周运动的综合题,同时又是联系科技、联系实际、联系生活的物理模型;2006年全国Ⅰ卷压轴题带电粒子在复合场中的往复运动;2004年江苏物理卷第17题汤姆生用来测定电子的比荷的实验等.因此,引起大家的高度重视就不足为奇.笔者在近几年的高三教学中将本章问题整合为“点、线、面、体”,收到了良好的教学效果,现提出以飨读者.
There are many basic concepts of the electric field and many basic laws. It is not only the basis of electricity, but also the key content of electricity. It is also the focal point of the selection of materials for the college entrance examination. The reason why it is favored by the college entrance examination proposition is that the key lies in its knowledge of mechanics and constant current. Knowledge is closely related to magnetic fields and other fields. For example, the 25th item of the new comprehensive curriculum for national college entrance examination in 2005 is a comprehensive problem involving constant current, deflection of charged particles in electric fields, and circular motion. At the same time, it is related to technology, contact with reality, and contact life. Physics model; 2006 National I-push problem charged particle reciprocating motion in the composite field; 2004 Jiangsu Physics Vol.17 title Thomson used to determine the electronic than the load experiments, etc. Therefore, it attracted everyone’s attention It is not surprising that the author has integrated the issues in this chapter into “points, lines, surfaces, and bodies” in senior high school teaching in recent years and received good teaching results.