Analysis And Proposition Of High School Physics Momentum And Double Conservation Problem

In 2017,the New Curriculum Standard proposed that high school physics momentum knowledge will be greatly adjusted,from the original elective content to compulsory learning content,which will be a new upsurge.The new curriculum standard clearly required students to understand the conceptual law of momentum conservation law,conduct scientific research on momentum conservation experiments,etc.,so that students could more clearly understand that the laws of physics are consistent and use conditions range,and cultivate students' spirit of scientific inquiry and attitude toward seeking truth from facts.Physical exam syllabus on momentum in 2018 also belongs to level ?requirements,where students are required to grasp the basic law conditions,also should learn how to use the related momentum knowledge,analyze and solve problems to cultivate students ability that combined the textbook knowledge with the reality of each life to deal with problems,so that the students can adapt to the requirement of social and economic development.Based on the curriculum reform and the requirements of the new examination syllabus,this paper analyzes the questions of high school physics momentum and double conservation and the fate of related topics,so as to help students improve their ability of scientific inquiry and comprehensive ability and make them develop comprehensively.The main research methods of this paper are literature research,case analysis and inductive summary.The research idea of this paper is to first summarize the requirements for the knowledge of momentum and kinetic energy in the New Curriculum Standard and the syllabus and the requirements for cultivating students' ability through the analysis of the New Curriculum Standard and the syllabus,and then put forward the purpose and significance of the research on the dual conservation of momentum and mechanical energy in high school.Secondly,the development history of momentum conservation,kinetic energy conservation and the corresponding concepts are defined.Then,the paper analyzes the questions of momentum and double conservation in the national exams of physics in the recent 10 years.Taking momentum conservation and mechanical energy conservation as two main clues,it summarizes the types of questions and corresponding times in the regular examinations,and sums up the procedures and thinking mode of solving problems by using the double conservation method.Finally,the author thinks about how to design exams to solve the problem of momentum and double conservation.In this article,through analyzing the physical national exams of the recent 10 years,six kinds of models and corresponding to the number of times are summarized.In the direction of conservation of momentum and mechanical energy of the university entrance exam questions are free fall model twice,Value range model 4 times,rebound after impact model once,and spring model once;In the direction of momentum conservation and mechanical energy conservation,the paper investigated the post-collision phase adhesion model 3 times and the bullet wood block model once respectively.Often take an examination of the topic model after induction,then summarize the problem solving methods,and 6 kinds of thinking methods are proposed to solve the problems of the high school physics and double conservation of momentum.Students can use the system thinking,several forms combining thinking,being a thought,analogy thought,extreme thinking,and equivalent thinking to solve the physical problems,and think about the high school physics about the problem of conservation of momentum and double conservation.Design some exams by taking the swinging ball model as an example,and exams of the three common models of recoil,man-ship and explosion that are analyzed.Under the implementation of the New Curriculum Standard,this paper analyzes the questions about momentum and double conservation of the national physics exams in the past 10 years,summarizes the usual test models and procedures of solving the double conservation method,so as to make the students targeted and have the corresponding ideas and methods when dealing with the questions.The six kinds of problem-solving thinking are proposed in this paper to help students solve problems flexibly,apply knowledge to real life,diverge students' thinking,and improve their scientific thinking and inquiry ability.Moreover,it has guiding significance to the teacher's lesson preparation and the student's study.It is related to a lot of aspects and is comprehensive.In this paper,the test research of momentum conservation and double conservation can promote the cultivation of student's ability under the guide of the syllabus and New Curricular Standard,such as students' comprehensive ability,understanding ability,and mathematical knowledge to solve the problem of the physical aspects of ability,in order to promote the all-round development of students.