动量守恒定律与能量守恒定律是惯中物理中两个最重要的基本规律,它们在物理学中得到广泛应用.历年的高考物理试题对动量和能量的考查都占有较大比重,并且经常考查一些常见的模型.用动量和能量的观点解的题,通常综合性强、灵活性大、分析能力要求较高.高考总复习中,必须引起高度重视.1.子弹打木块模型子弹和木块间的一对摩擦力的冲量实现 The law of conservation of momentum and the law of conservation of energy are the two most important basic laws in the physics of inertia, which are widely used in physics. The physical examination questions in the past years all occupy a large proportion of the momentum and energy, and often examine some Common models. Momentum and energy point of view solutions, usually comprehensive, flexible, demanding analytical ability. College entrance examination in the review, we must attach great importance .1 Bullet playing wooden model bullets and wood Between a pair of friction impulse to achieve