Research And Production Of High School Physics Circular Movement Experimental Teaching Aids

Physics is a fundamental discipline in the natural sciences,based on observation and experiment.The course standard points out that in the high school physics curriculum,scientific inquiry should be emphasized,especially physical experiments,which has an important position in cultivating students’inquiry ability and scientific attitude^[1].Experimental teaching aids can intuitively,vividly and vividly reproduce physical phenomena in students,which can well stimulate students’enthusiasm for learning physics,improve students’core literacy of physics,and the development of self-made teaching aids is a very important part of experimental teaching.In order to clarify the selection and design points of self-made teaching aids,provide supplementary experiments for teachers’peer experimental teaching,and further promote the development of self-made teaching aids.The author selects the chapter of"Circular Motion"in high school physics as the research object,takes the literature research method as the research method,and analyzes the textbook and learning situation of the content of this chapter on the basis of the research of predecessors,according to the requirements of curriculum standards and syllabus,and clarifies the difficulties of students in learning circular motion.At the same time,the author conducted a statistical analysis of the questions in the physics of the college entrance examination in the past five years,including the knowledge points of circular motion,and classified the test questions in the model.In view of the shortcomings of existing experimental teaching aids,the author designed and developed four teaching aids:a new centripetal force expression instrument,a vertical circular motion centripetal force exploration instrument,a centrifugal motion demonstrator and a self-made centrifuge,which are used to supplement classroom experimental teaching and improve students’core literacy in physics.The experimental error of the new centripetal force magnitude expression probe is controlled within 3%,and the production of this teaching aid fills the gap of the cone circular motion experimental teaching aid in the circular motion chapter.The theoretical model of the vertical face cyclical movement centripetal force probe is the rope ball model,and the production of this teaching aid fills the gap of the lack of circular motion teaching aids under the vertical face rope ball model,and improves the structure of this type of centripetal force teaching aids to a certain extent.The centrifugal motion demonstrator simplifies the structure of this type of teaching aid,and at the same time further amplifies the experimental phenomenon of centrifugal motion and supplements the experimental phenomenon of centripetal motion.The self-made centrifuge is a simple and interesting homemade teaching aid,with low production cost and obvious phenomenon.This article shows in detail the author’s thinking process in the process of selecting,designing and making teaching aids,lists the problems encountered by the author and the solutions carried out,and introduces the design principles,production process,experimental effects,advantages and disadvantages of the four self-made teaching aids in detail,hoping to provide reference for the teaching of physics teachers’self-made teaching aids and physics experiments.