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第三课时动能、动能定理教学目的1.理解动能的概念2.掌握决定动能大小的因素,结合牛顿第二运动定律和运动学的规律,推导出动能的表达式。3.熟练掌握动能定理的内容、公式和物理意义。教学建议动能定理是
Lesson 3 Kinetics and kinetic energy Theorem Teaching Objectives 1. Understand the concept of kinetic energy 2. Master the factors that determine the magnitude of kinetic energy, and combine Newton’s second law of motion with the laws of kinematics to derive the expression of kinetic energy. 3. Proficient in the content, formula, and physical meaning of the kinetic energy theorem. The teaching proposal kinetic energy theorem is