纵观历年高考物理试题及各级各类物理试题,选择题都是最常见的一类题型,并占了较大的比重,要在有限的时间内,迅速准确地解答众多的选择题,确实需要一些技巧和方法。巧解物理选择题,人们用得较多的有:极端法、守恒法、假设法、等效法、逆推法、整体法等,但对矢量图法还未引起足够的重视,我们知道,矢量是既有大小又有方向的物理量,矢量的运算遵循平行四边形法则(或演变成三角形法则)。矢量图解法能将复杂的物理关系显 Throughout the college entrance examination physics test questions and various types of physics test questions over the years, multiple-choice questions are the most common types of questions, and account for a larger proportion, to quickly and accurately answer a large number of multiple-choice questions in a limited time, It does require some skills and methods. Skillfully solving physical choice questions, people use more: extreme methods, conservation methods, hypothesis methods, equivalent methods, inverse methods, holistic methods, etc., but they have not received enough attention to the vector-graph method. We know that vector It is a physical quantity that has both size and direction. The operation of the vector follows the parallelogram rule (or evolves into a triangle rule). Vector diagram solution can show complex physical relationships