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轻弹簧是一种理想化的物理模型,以轻质弹簧为载体,设置复杂的物理情景,考查力的概念,物体的平衡,牛顿定律的应用及能的转化与守恒,是高考命题的重点,此类命题几乎每年高考卷面均有所见.应引起足够重视.搞清物体的运动情景,特别是弹簧所具有的一些特点,是正确解决弹簧问题的重要方法.弹簧类问题,特别注意使用如下特点和规律:1.弹簧的弹力是一种由形变而决定大小和方向的力.当题目中出现弹簧时,要注意弹力的大小与方向时刻要与当时的形
Light spring is an idealized physical model, light spring as the carrier, set the complex physical situation, the concept of test force, the balance of objects, the application of Newton’s law and energy conversion and conservation, is the focus of the college entrance examination proposition, Such proposition almost every year, college entrance examination papers have seen. Should be paid enough attention to understand the movement of objects, especially the spring has some of the characteristics of the spring is an important way to solve the problem. Spring problems, with particular attention to the use of The following characteristics and laws: 1. The spring is a kind of spring force is determined by the deformation and size of the direction of the force.When the subject appears in the spring, pay attention to the size and direction of the elastic moment with the then-shaped