An Analysis Of Comprehensive Difficulty Of Physics Multiple-choice Questions In National College Entrance Examination ?

As a bridge linking secondary education and higher education,college entrance examination has the function of cultivating talents,guiding teaching and selecting skills for higher education.What does the college entrance examination test? How to test? How difficult is it? Has been the attention of teachers,examinees and parents from all walks of life.But at present,there are relatively little research on the "difficulty" of the examination questions.The analysis on the comprehensive difficulty of the examination questions can't only predict the difficulty of the examination questions in advance,but also clarify the difficulty of the examination questions and the students' abilities,to provide help for optimizing and perfecting the difficulty structure of the examination questions,examination propositions,teachers' teaching and students' review.This paper draws lessons from Bao Jiansheng's comprehensive difficulty model,combining with the characteristics of physics subject,the modified comprehensive difficulty of mathematics model,using the AHP theory calculating different factors and weight coefficient of each level to build physical situation,knowledge integration,knowledge depth and mathematical thinking,scientific reasoning,physical modeling for the degree of difficulty of physical exam comprehensive evaluation index model,The model is used to analyze the comprehensive difficulty of the physics multiple-choice questions of the National College Entrance Examination in 2017-2021,and the following conclusions are drawn:(1)Test frequency at different levels of each difficulty factor,and the physical situation is dominated by situational questions;Knowledge synthesis is based on multiple knowledge points of two or more units;The depth of knowledge is mainly based on the questions of application level.Mathematical thinking is mainly based on numerical calculation level.Scientific reasoning is mainly based on simple reasoning level.Physical modeling is based on simple modeling level questions.(2)Physical modeling,physical context and scientific reasoning are the main factors that affect the comprehensive difficulty of mechanics module in the multiple-choice questions of the National College Entrance Examination II.(3)Physical modeling,scientific reasoning and knowledge depth are the main factors affecting the comprehensive difficulty of electromagnetism module in the multiple-choice physical questions of National College Entrance Examination II.(4)Scientific reasoning is the main factor affecting the comprehensive difficulty of atomic physics module in the multiple-choice questions of the National College Entrance Examination II.(5)On the whole,the shape of the radar chart of the comprehensive difficulty of the physics multiple-choice questions in 2017-2021 is consistent,but the comprehensive difficulty of each factor is unbalanced.Physical modeling is a comprehensive influence the college entrance examination physics choice question difficulty ",the first difficulty factor",scientific reasoning and comprehensive physical situation is influencing the college entrance examination physics choice question difficulty of "second difficulty factor",the depth of knowledge and knowledge is integrated comprehensive influence the college entrance examination physics choice question difficulty is "the third difficulty factor",the difficulty of mathematical thinking smaller values,is a "fourth difficulty factor".(6)knowledge module,the national college entrance examination physics choice question examines a compulsory ?(2 and take 2 both the number of test questions in the textbooks,most mechanical module test frequency relatively high level of knowledge is the law of universal gravitation and the law of conservation of momentum,electromagnetism module test frequency is relatively high,the magnetic field and electrostatic field atomic physics module is the nucleus of taking an examination of the relatively high frequency.(7)In terms of comprehensive difficulty,the comprehensive difficulty of the five textbooks in the multiple-choice part is elective 1,followed by compulsory 1 and elective 2 with similar difficulty value,followed by compulsory 2 and compulsory 3 with relatively low comprehensive difficulty,and elective 3 with the least comprehensive difficulty.Based on the analysis of the comprehensive difficulty of the physics multiple-choice questions in the national college entrance examination of Part II,some suggestions are put forward on the design of the physics multiple choice questions,teachers' teaching and students' preparation for the examination.