论文部分内容阅读
电磁导轨问题不仅是高中物理教学的重点、难点问题,也是学生平时学习感觉最困难的问题,同时还是高考中的重要题型.因为这类题目综合性强、物理过程复杂、试题覆盖面广,集力学、电学和运动学的重、难点于一身,不仅考查学生对基本概念、基本规律的理解程度,还考查学生的解题能力与技巧.解决这类问题可以考查学生对法拉第电磁感应定律、闭合电路的欧姆定律、牛顿运动定律、动能定理、能量的转化与守恒定律等规律的综合运用.
The problem of the electromagnetic guide rail is not only the key point and difficult point of high school physics teaching, but also the most difficult problem of students’ normal learning feeling and the important question type in college entrance examination at the same time. Mechanical, electrical and kinematic heavy and difficult in one, not only to examine students ’understanding of the basic concepts and basic laws, but also to examine the students’ problem-solving skills and skills to solve such problems can examine the students on Faraday’s law of electromagnetic induction, closed Circuit’s Ohm’s law, Newton’s law of motion, kinetic energy theorem, energy conversion and conservation law and other laws.