匀变速直线运动的知识拓展及应用
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摘要
从中学物理匀变速直线运动规律拓展到运动学两类问题,对刹车的位移变化规律、打点计时器纸带的加速度及中间时刻点速度、微分求运动的速度和加速度、积分求运动速度和位置矢量进行分析与应用。结果表明:通过运动学中两类问题的微积分法可以导出中学物理匀变速直线运动的理论公式,从而使匀变速直线运动的知识得到拓展和应用,给予物理学初学者和物理教学者提供了学习方法和理论知识的参考。
The linear Motion law of the middle school physics is extended to two kinds of kinematics, which is the analysis and application of the displacement law of brake, the acceleration of the timing device and the speed of the middle time, the velocity and acceleration of the differential motion, and the speed and the position of the integral motion. The results show that the theoretical formula of the uniformly accelerated motion of the middle school physics can be deduced by the calculus method of two kinds of problems in kinematics, so that the knowledge of the uniformly accelerated motion is extended and applied, which gives the physics beginner and the physics teacher the reference basis of learning method and theoretical knowledge.
The linear Motion law of the middle school physics is extended to two kinds of kinematics, which is the analysis and application of the displacement law of brake, the acceleration of the timing device and the speed of the middle time, the velocity and acceleration of the differential motion, and the speed and the position of the integral motion. The results show that the theoretical formula of the uniformly accelerated motion of the middle school physics can be deduced by the calculus method of two kinds of problems in kinematics, so that the knowledge of the uniformly accelerated motion is extended and applied, which gives the physics beginner and the physics teacher the reference basis of learning method and theoretical knowledge.
引文
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[15]张晓华.大学物理一本通[M].杭州:浙江大学出版社,2005:1-4.
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[3]程守洙,江之永.普通物理学[M].北京:高等教育出版社,2008:5-18.
[4]中学物理教材编写组.物理1(普通高中课程标准实验教科书)[M].山东:山东科学技术出版社,2010:12-45.
[5]周衍柏.理论力学教程[M].北京:高等教育出版社,2017:1-46.
[6]汪昭义.普通物理学(化学数学专业用)[M].上海:华东师范大学出版社,2013:6-98.
[7]陶兆宝.物理教学中学生科学素养的培养——以匀变速直线运动位移与时间关系的定量建立过程为例[J].教学月刊·中学版(教学参考),2016(Z1):65-67.
[8]许文.几种运动图象的理解与应用[J].理科考试研究,2018,25(11):41-44.
[9]张海军.“匀变速直线运动位移与时间的关系”教学设计[J].物理教学探讨,2018,36(7):32-33+36.
[10]杨庆峰.巧解匀变速直线运动问题[J].数理化解题研究,2018(19):54-55.
[11]杭庆祥.“探究小车速度随时间变化的关系”的教学功能及拓展[J].物理通报,2017(11):54-58.
[12]https://www.xkb1.com/wuli/gaozhongwuli/gaoyiwulishijuan/.
[13]成金德.实例分析纸带的处理方法[J].高中数理化,2018(Z2):79-82.
[14]陈红林.关于△x=a T2的一般表达式[J].中学物理教学参考,2018,47(13):43-45.
[15]张晓华.大学物理一本通[M].杭州:浙江大学出版社,2005:1-4.