From junior high school to high school, how should I learn physics?

Doing a good job in the mentality of junior and senior high school physics learning is a learning bottleneck that every student needs to break through. Compared with junior high school physics, high school physics has more content, and it is necessary to learn a lot of new content that has not been learned in junior high school, such as the synthesis and decomposition of forces, Newton's law of universal gravitation, the theorem of momentum, the law of conservation of momentum, the nature of light, etc. It is more difficult, and some will move from qualitative discussion to quantitative calculation, such as the relationship between force and motion, the concept of kinetic energy, electromagnetic induction, nuclear energy, etc.; Competency requirements are higher; Flexibility is required.

Physics learning in high school should not only learn physics knowledge, but more importantly, improve the ability to learn physics knowledge and apply physics knowledge, and learn some commonly used physics research methods.

Therefore, there are newer and higher requirements for students in high school, which is a leap forward for students in all aspects. For example, the leap from qualitative to quantitative, from figurative thinking to abstract thinking, from simple logical thinking of single factor to complex logical thinking of multiple factors.

The first year of senior high school is an important period in students' learning path, and it is also a critical moment in students' psychological development. A considerable number of students are outstanding in junior high school, and after entering the school in the first year of high school, there is no problem when learning the movement of forces and objects, and they feel that high school physics is nothing more than that. Problems arise from the beginning of learning Newton's laws of motion, and later on when learning about curvilinear motion, laws of gravitation, momentum, mechanical energy, etc., the problems get bigger and bigger.

If you can't adjust your learning mentality and methods in time, you will feel that physics is difficult to learn, or even can't learn it.

A small number of students due to the weak willpower to bear the setbacks, shaken their will, the learning and development channel is blocked, the spiritual world will be self-closed, people become depressed and pessimistic, so that they lose self-confidence, and set up an obstacle for themselves psychologically, so that the learning problems accumulate more and more, forming a vicious circle, and eventually will give up the study of physics, so they made the decision to abandon science and literature in the first year of high school.

In view of this situation, we should first eliminate psychological barriers, and realize that learning physics is as difficult as learning any other course, and if physics is really difficult to learn, we should muster up the courage and make the greatest determination to use all our skills to learn. If you put in a little more time at the beginning, you will be able to learn well. In addition, even if physics is difficult to learn, it is the same for all students, the starting point is the same, and you should not admit defeat psychologically, you should be confident in learning physics well, and then adopt a learning method that suits you, you will definitely be able to learn physics well.

Physics in high school is more esoteric, so every student has to organize a knowledge accumulation book and a problem book, and when you organize all the content, you will get better progress.

The physics subject in junior high school is relatively simple, as long as you follow the physics teacher to do more basic experiments and practice more familiarity. In high school physics, a lot of time and experience are invested in making a summary.

In fact, physics should lay a good foundation, and it is also necessary to give more physics formulas and memorize some problem-solving routines.

You should keep in mind the relevant physics formulas, and at the same time you can do several more sets of questions to find ideas.

Examples of the use of transformation methods in physics:

1. When judging whether there is current in the circuit, you can determine whether the bulb in the circuit emits light.

2. When it is necessary to prove whether there is water vapor in the air, prove the existence of water vapor in the air by observing the appearance of fog.

3. Observing the process of shadow formation, we can know that light travels in a straight line.

4. Molecules cannot be seen or touched, and if you want to study molecules, you can study it through diffusion phenomena.

5. The movement of the magnetic field cannot be seen or touched, and when judging whether the magnetic field exists, use a small magnetic needle to see if it rotates to determine.

6. If you want to prove the existence of the geomagnetic field, the compass compass can prove the existence of the geomagnetic field.

Difference Between Middle School Physics and High School Physics:

1. The depth of knowledge is different.

The main purpose of learning physics knowledge in junior high school physics is to use physics knowledge to explain various phenomena in life, and to use physics knowledge to analyze the causes of various problems, so as to find out the methods and measures to solve the problems to solve the relevant problems.

In high school physics, in order to deepen the understanding of important physics knowledge, some of them will move from qualitative discussion to quantitative calculations, such as the relationship between force and motion, the concept of kinetic energy, electromagnetic induction, nuclear energy, etc.

2. The scope of knowledge is different.

Middle school physics includes electricity, mechanics, levers, power, heat, etc.

In high school physics, it is necessary to expand the scope of physics knowledge and learn many new contents that have not been learned in junior high school, such as the synthesis and decomposition of forces, Newton's law of universal gravitation, the theorem of momentum, the law of conservation of momentum, and the nature of light.

(1) Study the textbook.

The army does not fight unprepared battles, and the same is true for studying physics. The books for the new semester have been sent, and I hope you can pick up the physics textbook, open the picturesque chapters, and follow the table of contents to get a general understanding of the content of this semester; Before each chapter and each class, preview again in advance, and you have a lot of doubts, waiting to uncover the mystery with the teacher in class; When revising, the textbook should be reviewed over and over again, "read the book a hundred times, and its meaning will come to you", and each time you will make a new discovery.

2) Listen carefully.

Genius is not born. Whether it is a new class, an experimental class, an exercise class, or a review class, every "exam champion" can make full use of the class time, listen attentively, follow the teacher's ideas, think positively, outline the key points from time to time, mark the ones that are still unclear, or record the new questions that arise, so that learning is efficient. Learning is a process, constantly spurring oneself, firm one's belief in learning, perseverance, in order to reach the realm of "learning" and "learning".

3) Self-inspection.

Exercises are consolidation, review is systematic, and exams are tests. Every homework, every exam, complete independently, carefully review the questions, carefully calculate, refine the conclusions, think comprehensively, and standardize the answers; Correct in time, ask questions if you don't understand, learn to generalize, solve multiple problems in one question, draw inferences from one another, and unify multiple questions.

The key to learning physics well is to understand the characteristics of physics as soon as possible, otherwise, we will "take a plane", be in the clouds, be exhausted to cope, and lose the initiative to learn.

Do the following three things:

Clause. 1. Read more. The main thing is to make the definition in the book clear. Don't feel like you know when you're done. Not really. Define learning and comprehension as the basic elements and prerequisites for learning knowledge;

Clause. 2. Do more questions. The first is to do practical work, and the second is to help you understand the definition. It's best to be able to solve multiple problems in one question, so that over time, the chapters will be integrated. The physics is very comprehensive. For example, the knowledge of mechanics can be linked to all the chapters.

Clause. 3. Think more. Physics is the truth contained in nature, and it is man who summarizes them. It will be very beneficial if you can always think about it in the context of your studies.

For example, if two planets orbit each other, is the center of rotation closer to the more massive or closer to the smaller? Of course, this can be pushed by the formula. But actually think about it, the moon and the earth, because the earth is big, so the earth hardly moves, the moon is running around the earth.

Therefore, the center of rotation of the two is naturally close to the earth, and it must be closer to the mass.

In the process of learning junior high school physics, students should learn according to the three main lines of experiments, life phenomena, and computing ability, which will make the boring physics knowledge more vivid, and it will be easy to discover the laws of physics, understand the phenomena of physical experiments, and break through the bottleneck of calculation.

First of all, it is necessary to highlight the experimental characteristics of physics. Physical concepts and laws are derived from experiments. In addition to the examination of students' basic experimental knowledge and basic experimental skills, the common physics experiment questions in the high school entrance examination also pay attention to experimental ability.

It is necessary for every student to have access to experimental equipment and operate it personally, so that students can have preliminary experimental operation skills, be able to use simple experimental instruments and measurement tools, be able to measure some basic physical quantities, know simple data processing methods, write simple experimental reports, and describe experimental results with scientific terms and simple charts. Understand the purpose and principle of the experiment, instruct students to strictly follow the rules and procedures of use, and make necessary records. Through experiments, students can discover the laws by themselves and learn how to explore physics knowledge.

The commonly used research methods in junior high school physics include: control variable method, observation method, equivalent substitution method, ideal model establishment method, transformation method, analogy method, comparison method and scientific reasoning method. In many experiments, a certain research method is often highlighted, for example, when the factors affecting friction can be paid attention to; When studying leverage equilibrium conditions, data analysis can be highlighted.

Cultivate the habit of using the equipment around them to do experiments.

Second, for the understanding of physics, Zhuangzi once gave an incisive exposition: "judge the beauty of heaven and earth, and analyze the reason of all things". The basic philosophy of the new curriculum is also "from life to physics, and from physics to society."

It is to learn to use physics knowledge to solve practical problems, pay attention to observing physical phenomena in life, and try to use physics knowledge to explain.

Third, numeracy is a necessary ability for physics learning.

Clarify the expression formula of concepts and laws and the physical meaning of each symbol in the formula.

Be able to grasp the scope of application and use conditions of formulas. The formula is correctly deformed and the meaning of the deformation is understood.

The steps are standardized and the thinking is thorough.

Ability to read questions. Summarize the methods and draw inferences.

Pictorial aids. In the calculation of circuit exercises, it is often difficult to analyze whether the circuit diagram has been given in series, parallel or mixed, if you can skillfully draw the circuit diagram into an equivalent circuit diagram, it is easy to see the connection characteristics of the circuit, so that the relevant problems can be easily solved.

Learning physics should focus on understanding and learning to apply. On the basis of understanding, students should learn to apply and apply the knowledge of physics they have learned to solve practical problems.

In the study of physics, in order to cultivate students' ability to ask questions, analyze problems, and solve problems, the key is to understand the concepts and laws of physics, and must not memorize them by rote.

If you want to learn physics well, you must first learn mathematics well, because he needs to have strong logical thinking ability, usually prepare for preview, listen carefully in class, and do problems carefully after class.

In order to learn physics well, junior high school students must first fully grasp the basic knowledge and key points of physics, secondly, they should participate in physics experiments to facilitate their understanding of knowledge, and thirdly, they should continue to consolidate the knowledge they have learned, so that they can learn physics well.

You only need to listen carefully to the teacher's lecture, and then ask the teacher if you don't understand anything, so that you can learn the course well.

Then first of all, we must lay a good foundation in physics, and first of all, we must memorize the physical formulas. Then I went on to do the physics problem.

Junior High School Physics I'm in college now, and I handed in junior high school physics to my brother in the summer vacation, and my sister in the second year, so I have the following suggestions.

Junior high school physics is all concepts, memorize concepts, such as: The seven steps of the problem, the three elements of light, and the imaging law of convex lens.

Do more questions, the questions have been seen, the exam can not panic, the wrong questions should be written down, and read more.

Develop an interest Try not to memorize by rote.

As an experimental science, it's best to be able to do experiments, and perceptual understanding is always better than written ones, and I remember it well.

Listen to the lecture in class, read the answer carefully after doing the question (to see the kind of answer with detailed explanation), and then do the question.

Read more books, understand carefully, do questions, and understand the questions thoroughly.

I can't remember if I told you too much, just a little. Memorize experimental phenomena, and diagrams from the book. The efficiency of using image memory will be improved many times, so it is important not to memorize conclusions.

A few tips for learning physics well.

1. Learn to think.

Physics, to put it bluntly, is thinking. Don't die of physics, the characteristic of this course is that you don't need to memorize it, and you don't need to memorize it. Physics is by no means a noun explanation.

This is the kind of thinking that you have to set up at the beginning of your exposure to physics books. To put it more seriously, if you can't think of a topic, you have to think of it if you want to break your brain, and the effect of this kind of learning method is endless, if you want to get an intellectual improvement in the self-examination, then learn physics well.

2. Go through all the questions after class.

Of course, you can't look at the answers or hints at the time of completion. If you are not completely sure of your answer, you must not read the answer, otherwise it will make all your efforts go to waste.

3. A good book is enough.

There is no need for any tutorial books, etc., these things will delay your study time, and even make you feel dependent on tutorial books, which will seriously affect your ability to learn on your own.

If you can do all three, it's just physics. It's also hard for me to imagine a person who really went through all the questions after class independently, and still failed the physics exam. Of course, it takes time to learn physics well, and if you want to learn it quickly, then you will definitely spend more time thinking about physics topics than reading books.