How to learn physics well? Urgent!! How to learn physical chemistry well!

In fact, physics is not difficult to learn, I started to learn physics in the second year of junior high school, I felt that the speed of school learning was too slow, so I spent 20 days of winter vacation to learn all the physics knowledge in junior high school, and one month after the start of school, I won the second prize in applied physics, but after learning junior high school, I will find that many problems can not be explained, such as, why I am overweight or weightless when I take the elevator, or why I feel that it is dragging myself when I throw something, and there are many problems, in fact, they all come from the observation and experience of life. That summer, with these questions, I taught myself all the physics content in high school, and I have to say that it was a bit difficult to understand, after all, it is the result of nearly 100 years of human research. But if you understand it slowly in life, you will find that behind these formulas there are human explanations for unknown phenomena, and the explanations are so wonderful.

In the third year of junior high school this year, I am about to graduate, and the knowledge of high school physics has been basically exhausted, I can't say what use this is for the high school entrance examination, I can only say that this is a hobby of mine. This year, I won the first prize in the national physics competition, in fact, I didn't have a special training competition question, I ranked among the best in physics in the grade, in fact, I think the class is secondary, like the study of natural science, if it is only utilitarian to learn, it will not be good to learn, memorize formulas, listen to awards in class, memorize notes before exams, can only ensure that you are not too bad. If you really want to learn well, you still have to learn with interest.

First of all, it is necessary to have confidence in learning physics well, and to have a broad understanding of the life and contributions of physical scientists, and the whole of physics is developed step by step by the discoveries of scientists.

Second, it is necessary to link various physical theories with real things, and elevate them from perceptual understanding to rational understanding.

Thirdly, have a solid grasp of the learning content of each chapter, focus on grasping the connotation and application of each physical formula, do an appropriate amount of questions, sort out the wrong list, and analyze it carefully.

The main thing is the basic concept, put the basic concept on your back! I can inflect based on the basic concept! Physics is primarily about the transformation of publicity.

I think it's important to do the questions, but it's even more important to reflect on them. I'm in my third year of high school, and I have a saying to tell you: don't ask for the first time to be all right, but ask for the second time to be good. This is what one of my Tsinghua seniors told me.

Learning physics is very process-oriented, a process of cognition, understanding, and application.

1.Cognition: Use the things or phenomena around you or even some examples narrated by the teacher to help yourself fully understand it and become interested in it.

2.Comprehension: Use understanding to memorize formulas, theorems, experiments, etc. It can be understood and memorized in clever ways such as visual thinking. For example, what is a vacuum can be understood in this way: a vacuum is really empty, there is nothing.

3.Application: One is to cope with the exam, and the other is to explain some physical phenomena around you.

So, when studying, first of all, don't be afraid, because your previous experience of not learning well may suggest something to you, which may lead to a vicious cycle for you. Try to tell yourself, "I can do it!! In fact, psychological suggestion is very useful!

However, in order to increase your confidence, it is best to do a good job of pre-study and be aware of it.

Secondly, you should follow the teacher's train of thought in class, take some notes appropriately, and write down some knowledge points that are not clearly stated in the book or even omitted and are easy to make mistakes. Take time out of class to practice more, don't prevaricate for any reason, thus giving up the best time to practice, which can only lead to tragedy in the end.

Last but not least, you must make sure to make a timely summary. For example, the paper of the last exam has been sent down, and although it has been carefully corrected, you still have to think about why it was wrong. How is the correct answer calculated?

Will it be wrong if I get it again next time? Wait a minute.

I think that through these study methods, I will definitely be able to learn physics well.

This depends on myself, my experience is that I should have a set of learning methods, usually for the textbook just to know more, to know the knowledge of the book well, in addition to think more, communicate with classmates, thinking is the most important, physics and chemistry are more closely related to life, so to a certain extent, to a certain extent, to connect with life experience. When I was in high school, I didn't like to listen to the teacher's lectures, I was self-taught, I usually thought a little more, and when I got to the college entrance examination, I took the A+ and A, of course, I had to be conscious.

...The most basic thing about materialization is high math and calculus ability, and then there are concepts, formula memorization and appropriate exercises (phase diagrams are a troublesome thing), mainly to understand the connotation and find the deviation of your own understanding.

Neither do I, I don't know anything about it.

Hello: If you want to learn physical chemistry well, in addition to memorizing the basic knowledge in books, you need to do questions or do questions. Only when you see more types of questions can you learn physical chemistry well.

How to do it, I think it's a little difficult to explain it to you clearly in this short sentence. I can provide you with some information if you need it. Hehe.

Grade 8 A: Propagation of sound, optics, change of state of matter, composition of circuit of change of state of matter.

Grade 8 Lower: Electricity, Electricity and MagnetismElectricity and Magnetism, Information Transfer.

Grade 9: Mass and Density, Motion and Force, Buoyancy and Pressure, Work and Mechanical Energy, Heat and Energy.

Sound propagation: To understand the speed and medium of sound propagation, understand what determines the timbre, tone, and loudness, and the vacuum cannot transmit sound.

Optics: The fastest speed in the universe.

Change of state of matter: understand that condensation, solidification, and liquefaction are exothermics, and melting, sublimation, and gasification are endothermics.

Change of Matter: Understanding Currents and Circuits.

Electricity: The most important part of this chapter is to understand voltage and slip rheostats, Ohm's law and electrical power, Joule's law.

Electricity and Magnetism: Understand the relationship between electricity and magnetism.

Transmission of information: Understanding**, speakers, fiber optics and communications.

Mass and Density: Learn what mass and density are and how to calculate them.

Motion and Force: Understand that the telemotion and rest of an object are relative and uniform linear telemotion, Newton's first law, and the equilibrium of two forces.

Buoyancy and pressure: Understand the relationship between pressure and buoyancy and fluid pressure and flow velocity, atmospheric pressure.

Work and Mechanical Energy: Understand what is work, power, and mechanical efficiency.

Heat and energy: Learn about molecular thermal telemotion and internal energy, heat engine, and specific heat capacity.

Kinematics (most detailed), Optics (simple), Electromagnetics. "Textbooks are mostly textbooks of the 15th National Plan".

8th grade: Acoustics, Optics, State of Matter, Electricity.

Lower 8th grade: Electricity, electromagnetism, information transmission.

Grade 9: Movement and Force, Buoyancy, Pressure, Gong.

If you want to learn by yourself, of course, you have to buy books, but how can you learn by yourself without buying books?

It is recommended to read the high school physics textbook directly! It will be more useful! It's still understandable!

The first spine is the first, and the textbook is read repeatedly. This step is crucial, and almost all top students have experienced it. Textbooks are the best teachers.

Many students will say, "The textbook is so simple, and the exam is so difficult, is it useful to see it?" "That's not right.

In fact, as far as I know, anyone who has a bad or mediocre score in physics is not a solid basic knowledge. They think they have learned well, but in fact they do not understand the most basic concepts and theorems. If you don't believe it, you can open the textbook table of contents and carefully review the relevant content section by section, and then you will understand what you don't understand.

For a physical concept, you have to understand it at a deep level. Let's say two small balls collide, what can you think of from that? What's wrong with momentum?

What's wrong with energy? You don't have to think about these questions when you have to do the questions. These questions may seem simple, but when you think about it, you can come up with a lot of questions. Moreover, such simple questions are the root of hundreds of millions of exam questions.

Second, do some simple questions. This second step, like the first step, is despised by many. They may think that doing those easy problems lowers their status, or that they are too busy with difficult problems to do the easy ones.

What is a "simple question"? It is those that directly examine basic definitions and theorems, such as exercises in textbooks and slightly more complex questions. The purpose of doing these questions is not to answer the right question, but to understand the question thoroughly and associate something from the simple question.

Some so-called puzzles are actually a combination of several simple problems.

Then, read more sample questions from the reference books and do some general questions of medium difficulty. Personally, I like to read the example questions in the reference book the most, because the number of questions is small, and it is typical, and the answers are very standardized. After class, do a few medium topics to practice, the effect is often very good, do not ask for more, a few are enough.

It's still the same old saying, think back to it when you're done.

Finally, for the difficult problems, look at them with an attitude of appreciation and playfulness. To be honest, there are no difficult questions in the current comprehensive exam, at most they are related to the reality of life. And the practical questions are often not too difficult, but the lack of reading the questions intimidates a group of people.

At least 70% of the questions in the comprehensive examination are easy or medium, so for most people, the focus is to lay a good foundation and do a good job in simple and medium questions; Besides, only when these questions are done well can we have the time and ability to do the so-called difficult problems. One more word of caution: the so-called medium difficulty questions are just simple questions that are slightly more complicated.

Hope it helps the landlord!

Don't dig the reputation and be blind to death to do the topic, find some example questions to see.

Junior high school physics is not difficult to be stupid, and the high school entrance examination is not too difficult, so it is necessary to record the questions that you did wrong in the exam and homework to figure it out.

Learn to draw inferences.