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2008年的江苏省高考物理题的第13题第3问,几乎包含了抛体运动的所有求解方法和处理手段,可谓是一道考查学生物理思想方法的好题.本文就该题的第3问提出八种不同的解法,以体悟一题多解的教学价值.原题抛体运动在各类体育运动项目中很常见,如乒乓球运动.现讨论乒乓球发球问题,设球台长2L、网高h,乒乓球反弹前后水平分速度不变,竖直分速度大小不变、方向相反,且不考虑乒乓球的旋转和
In the third question of Question 13 of Jiangsu Provincial Entrance Examination Physics in 2008, which contains almost all the solution methods and processing methods of the projectile movement, it can be described as a good question to examine students’ method of physics thinking. Put forward eight different solutions to realize the value of a multi-solution teaching value. The original topic of projectile sports in all kinds of sports are common, such as table tennis .To discuss the issue of table tennis serve, set the table 2L, net High h, ping-pong before and after the bouncing back to the level of the same speed, vertical speed unchanged, the opposite direction, and does not consider the rotation of table tennis and