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动能定理,即物体所受合外力对物体所做的功等于物体动能的改变量,是能量守恒定律的一个具体表现形式.它不仅适用于直线运动也适用于曲线运动,不仅适用于单个力做功同时还适用于多个变力做功,也可以和电磁学部分结合起来考察,是高中物理力学中综合性较强的一部分内容,当然也就成为高考的重要考察内容.动能定理不但重要,而且使用起来较方便.物理题型、情景千变万化,那么如何合理选择并正确使用动能定理,达到以“不
The theorem of kinetic energy, that is, the amount of work done by an external force exerted by an object on the object is equal to the amount of change in the kinetic energy of the object, is a concrete manifestation of the law of conservation of energy, which applies not only to linear motion but also to curvilinear motion, At the same time also applies to a number of variable forces to do work, but also can be combined with the electromagnetic part of the study, is a high comprehensive physics physics part of high school, of course, has become an important examination of the college entrance examination kinetic energy theorem is not only important, Up more convenient physical problems, scenarios ever-changing, then how to choose and use the correct kinetic energy theorem, to achieve ”not"