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轻质弹簧(不计质量)是一种理想化的模型。由于其力学特征、能量特征,空间性、对称性、渐变性等方面的显著特点,使其成为考查分析能力、推理能力、判断能力的重要工具。而与弹簧有关的试题也成为各地历年高考中的热点。一、弹簧模型的力学特征1.弹簧弹力的大小:F=kx,即弹力的大小与其形变量成正比。2.弹力的方向:沿弹簧轴线,伸长时为拉力、压缩时为推力。
Lightweight spring (regardless of mass) is an idealized model. Because of its mechanical features, energy features, spatial features, symmetry, gradual and other aspects of the salient features, making it an important tool to test analysis ability, reasoning ability, judging ability. And the spring-related questions have become the hot spots throughout the year college entrance examination. First, the mechanical characteristics of the spring model 1 spring elastic size: F = kx, that is, the size of the elastic force is proportional to the deformation. 2. Elastic direction: along the spring axis, elongation for the tension, compression thrust.