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牛顿第二定律和动量定理在整个高中物理教学中占有很大的比重,是整个力学学习的基础,二者之间有着非常紧密的联系,动量定理是由牛顿第二定律的公式F=ma和匀变速直线运动的速度公式v=v0+at推导出来的。本文就两个知识点的教学中如何培养学生的思维能力进行了对比研究。1.思维自由度的增加牛顿第二定律F=ma反映了力F,质量m,加速度a间的瞬时关系,可以概括成物质与运动的二维关系;而动量定理F△t=△mv,
Newton's second law and momentum theorem occupy a large proportion of high school physics teaching, is the basis of the entire mechanics learning, there is a very close relationship between the two, the law of momentum is Newton's second law formula F = ma and Variable speed linear motion speed formula v = v0 + at derived. This article makes a comparative study on how to cultivate students' thinking ability in the teaching of two knowledge points. 1. Increasing the degree of freedom of thought F Newton's second law F = ma reflects the instantaneous relationship between force F, mass m, and acceleration a and can be generalized as the two-dimensional relationship between matter and motion. The momentum theorem FΔt = Δmv,