论文部分内容阅读
历年高考物理压轴题都是大家关注的焦点,2016年也不例外。2016年高考(新课标I卷)理科综合第25题继2015年第25题考查木板和木块相对运动的力学综合类型后,出人意料地连续两年考查力学综合知识,值得我们反思并高度重视。先看看2016年高考新课标卷工理综第25题:如图1所示,一轻弹簧原长为2R,其一端固定在倾角为37。的固定直轨道AC的底端A处,另一端位于直轨道上B处,弹簧处于自然状态。直轨道与一半径为5/6R的光滑圆弧轨道相切于C点,AC=7R,A、
Over the years physics finale college entrance examination questions are the focus of everyone’s attention, 2016 is no exception. 2016 Entrance Examination (Volume I of the New Curriculum) Science Integrated Question 25 Following the 25th issue of 2015, after examining the mechanics synthesis type of the relative movement of wood and wood blocks, it is surprising that examining the comprehensive knowledge of mechanics for two consecutive years deserves our reflection and great attention . Take a look at the 2016 entrance examination of the New Curriculum Volume 25: As shown in Figure 1, a light spring original length of 2R, one end fixed at a dip angle of 37. Of the fixed straight track AC at the bottom of A, the other end is located in the straight track B, the spring in a natural state. A straight orbit is tangent to a smooth circular orbit at a radius of 5 / 6R at point C, AC = 7R, A,