The Application Of The Mathematical Thought Of Quadratic Equation With One Unknown In High School Kinematics Questions

Kinematics knowledge is the core content of high school physics.It is also the key and difficult point of teaching.It occupies a large proportion in physics examination in senior middle school.In the past years,in the college entrance examination,kinematics knowledge is the content of compulsory examination.Its score is high and its examination questions are very difficult.Therefore,how to improve the scoring rate in this sector is particularly important in high school physics teaching.The kinematics content of high school physics curriculum standard mainly includes two chapters: the description of motion and the research of uniform variable linear motion.The key knowledge is mainly linear motion of particles.Its main contents include the concept of uniform linear motion and the law of uniform linear motion.In all the laws of linear motion of uniform speed,the formula of displacement time and the formula of velocity and time are used as the two basic formulas,and a large number of kinematic questions need to be solved by using these two formulas.The displacement time formula of uniform velocity linear motion contains a deep mathematical idea.As far as its shape features are concerned,it belongs to the one element two times equation of mathematics.According to the mathematical characteristics of the displacement time formula of the uniform linear motion,many kinematics questions need to be regarded as one of the formulas in the use of this formula.The two time equation or the two variable function of one yuan is solved.The two variable equation or the two element function of one variable is solved.In this paper,the mathematical method used in the solving process of high school kinematics questions is deeply explored,and the method of solving one element two times equation and one element and two functions in the process of solving the problem of kinematics is excavated,and the kinematic test questions are classified according to their different mathematical solutions.The results are found from the mathematical point of view.It mainly includes four core ideas and methods: 1.to discuss the real root of the one element two order equation,2.to solve the relationship between the root and the root,3.use the root discriminant and the relationship between the root and the coefficient,and the 4.to solve the extreme value of the one element two function.Through the above study,a physical model is constructed from the mathematical thought of one element two times equation or one element and two functions,and the relationship between acceleration,velocity,time and displacement is established.Introduction.This paper summarizes the different types of questions in kinematics,sums up the core mathematical ideas in the process of solving the problem in the process of kinematics,and gives a specific introduction to how to make the kinematics questions from the point of view of mathematics.Finally,it can give students a learning kinematics and solve the direction and teaching of the kinematics test questions.Teachers should have a direction of teaching and a new thinking angle for subjects to make a kinematic test.