1,功 功率 保守力 非保守力 动能 动能定理,work power conservation force nonconservative force kinetic energy theorem of kinetic energy,2,势 能 弹性势能 重力势能 引力势能 功能原理 机械能,potential energy elastic potential energy gravity potential energy gravitational potential energy principle work-energy mechanical energy,3,机械能守恒定律 动量 动量定理 动量守恒定律 冲量,law of conservation of mechanical energy momentum theorem of momentum law of conservation of momentum impulse,4,碰撞 完全弹性碰撞 完全非弹性碰撞 质点系 质点系动量定理,collision perfect elastic collision perfect inelastic collision system of particles theorem of momentum of particle system,END,