最简规则 最显能力——全国理综Ⅰ第23题的多种解法和求解对策

• 作 者: 韩静波
• 机 构: 浙江省路桥中学,
• 出 处: 物理教师
• 发表日期: 2013年05期
• 关键词: 高中物理 求解策略 数学运算 解题思路 参考答案 数学问题 假设量 相似三角形 图像法 独立方程

笔者认为运动学作为高中物理必修的开篇之作,显得基础而简单,但却是高考物理最显能力的内容,在高考中既是老题,也是永恒的主题,并且由于其规则简单,入手容易,十分切合高考的公平原则.本文对全国理综Ⅰ的一道考题进行分析,指出其求解策略和能力考查要求.试题:已知O、A、B、C为同一直线上的4点、AB间的距离为l1,BC间的距离为l2,一物体自O点由静止出发,

The author thinks that kinematics, as the first compilation of physics compulsory for senior high school, is basic and simple, but it is the most significant content of college entrance examination physics. It is both an old topic and an eternal theme in college entrance examination. Because of its simple rules and easy to start, Very suitable for the college entrance examination of the principle of fairness.This paper analyzes a national rationale for comprehensive analysis of a test questions, pointing out that the solution strategy and ability test requirements.Examples: Known O, A, B, C on the same line 4, AB Distance l1, the distance between BC is l2, an object from the point of departure from the static,