高考物理复习第五章能量和动量第2节动能定理及其应用市赛课公开课一等奖省名师优质课获奖课件.pptx

返回,第,2,节,1/57,课前回顾,基础速串,课堂提能,考点全通,课后演练,逐点过关,2,3,1,2/57,宏观整合，微观提醒，回顾旧知短平快,课,前,回,顾,基,础,速,串,3/57,4/57,5/57,易点速过，难点精研，时间用到增分点上,课,堂,提,能,考,点,全,通,6/57,数量关系,协力做功与物体动能改变相等,单位关系,国际单位都是焦耳,因果关系,协力做功是物体动能改变原因,7/57,8/57,9/57,10/57,11/57,12/57,13/57,14/57,15/57,16/57,17/57,18/57,19/57,20/57,21/57,22/57,23/57,24/57,25/57,26/57,27/57,28/57,29/57,30/57,31/57,32/57,33/57,34/57,35/57,36/57,37/57,38/57,关键点,获取信息,光滑圆弧轨道,BC,BC,轨道无摩擦力做功,竖直光滑圆周轨道,竖直圆周轨道无摩擦力做功,小球由静止从,A,点释放,小球初速度vA0,小球刚到C时对轨道作用力,小球在圆弧管道BC最低点，含有竖直向上向心加速度,利用牛顿第三定律确定小球对管道压力,39/57,40/57,41/57,42/57,43/57,44/57,45/57,46/57,47/57,48/57,49/57,50/57,51/57,52/57,53/57,54/57,55/57,56/57,谢,谢,观,赏,57/57,