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轻弹簧在高中物理中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,牛顿定律及功与能的问题,是高考命题的重点和热点,由于涉及到的弹簧弹力是变力,学生往往对这种变力大小和方向的变化过程缺乏清晰明了的分析,不能与相关的物理模型和运动过程相联系,导致解题思路混乱,对这种类型的题目惧怕。下面就这种类型的题目做以下分析。
Light spring in high school physics is an idealized physical model to light spring as the carrier, setting complex physical scenarios, the concept of force test, the balance of objects, Newton’s law and power and energy problems, is the college entrance examination proposition Due to the spring force involved is a variable force, students often lack of a clear and clear analysis of the change process of the magnitude and direction of the force, can not be associated with the relevant physical model and the process of movement, leading to chaos Fear of this type of topic. The following topics on this type of analysis do the following.