Expert's comment: 20 15 physics comprehensive test questions are mainly based on ability test, and the questions tend to be stable and the difficulty is properly controlled. Regular questions account for more than half of the total number of questions. The test questions pay more attention to the ability while examining knowledge. In the test questions, we insist on the proposition of paying equal attention to force and electricity, focusing on the main knowledge of force and balance, linear and curvilinear motion, energy viewpoint, electric field and magnetic field, electromagnetic induction and so on. Re-modeling and re-application. For example, 16 examines the composition and decomposition of the movement through satellite orbit change, paying attention to nature and contacting the social focus. There are four multiple-choice questions among the eight multiple-choice questions, one more than last year, which will affect the candidates' answers to some extent.

According to the syllabus and test questions of the 20 15 new curriculum, science students should pay attention to the systematic review of physical knowledge points and typical models. Among the many ability requirements of college entrance examination, the ability to analyze and understand and the ability to solve physics problems by mathematical methods are the biggest problems that restrict the improvement of physics scores; Candidates should pay attention to the connection between physics and life and strengthen the application connection.

I. Overall evaluation

The difficulty is moderate, the test sites are comprehensive, and more attention is paid to the investigation of basic knowledge and thinking ability. Each topic requires candidates to have a deep understanding of the knowledge points to be investigated, and on this basis, they have strong thinking ability and can flexibly use what they have learned to solve problems.

Second, the sub-item evaluation

(1) multiple choice questions

While examining the basic knowledge of each part, we should pay more attention to the flexible use of basic methods and skills. Candidates are required to establish corresponding physical models and scenarios according to the information described in the topic, and then use their knowledge flexibly to solve problems. There is no so-called templated test questions, and each question requires candidates to have a really deep understanding of the knowledge points they have tested in order to get it right. At the same time, it should be emphasized that candidates should carefully examine the questions. Among the eight choices, the last four are multiple-choice questions, which is different from the traditional mode that the last three are multiple-choice questions. Candidates should pay special attention to the examination questions.

(2) Mechanical experiment

Measuring friction coefficient is relatively simple. This paper discusses the processing method and calculation of point timer, as well as the mastery and application of experimental principle.

(3) Electrical experiment

It is difficult to measure the internal resistance of voltmeter by half bias method. This paper mainly investigates the detailed operation steps and principles of the experiment, and requires students to write down the experimental steps and error analysis in detail in the form of short answers. It is difficult for candidates who are not comprehensive and solid enough to write the experimental steps step by step.

(4) Calculation problems

24 questions, relatively simple. The application of kinetic energy theorem in electric field, as well as the decomposition and synthesis of velocity, are all conventional ideas and skills for solving problems. Not difficult.

25 questions, more difficult. Finally, the slider model is studied. The slider model itself is a difficult point in mechanics, taking the slope as the carrier. At the same time, the condition of changing friction coefficient is added, which makes the topic very complicated. Firstly, candidates need to have a good grasp of the slider model, and secondly, they need to have a strong ability to analyze complex motion situations, which is very difficult.

(5) Elective part

It's not difficult, and they are all conventional physical models. Candidates can get points as long as they master the most important physical scenes and corresponding problem-solving methods in each part of elective courses.

Iii. Suggestions for 20 16 candidates

Review must be comprehensive, leaving no loopholes and dead ends. When practicing, don't memorize formulas and some so-called problem-solving routines and templates. You must really understand the real meaning behind various physical formulas and methods, and let the formulas and problem-solving skills serve your own problem-solving ideas. Only by cultivating their ability to build physical models and scenes and improving their physical thinking ability can they be invincible in the 20 16 college entrance examination.