How should high school students learn physics? Please, 3Q

Can't sleep on the credit book Some students, especially those who have been admitted to key middle schools, may think that I have worked hard for a year in the third year of junior high school and entered the key middle school, and I have stepped into the gate of the university with one foot, so I can take a good breath. Who knows, this breath has buried hidden dangers for the next three years of study. The content of the high school curriculum is large and deep, and the knowledge imparted by the teacher in one class may be twice or even three or four times that of junior high school.

If you don't do a good job of pre-study and revision, students are likely to accumulate a lot of questions. And the knowledge structure is interlinked and interlocking. Once there is a failure in one link, it will directly affect the learning of the next link.

Especially when you review in the third year of high school, you will feel that you are in a "castle in the sky". The best way is to do a good job: preview ——— have an understanding of the content of the next day's class, and listen to the teacher's explanation with key points and difficulties during class, so that the thinking is clearer and more flexible; ——— class, concentrate 100% on listening to the teacher's explanation.

One minute of guidance from the teacher in class can save you ten minutes of thinking alone about the same problem after class; Review ——— knowledge after class should be sorted out, homework must be completed independently, and while doing homework, problems should be found and solved. If necessary, you can ask the teacher for advice and discuss with your classmates, but do not plagiarize the homework. As long as you go step by step like this, you will be able to review the general review in the third year of high school.

6. Ability to question:

Physics is not an immutable truth, it needs to be constantly updated and changed in exploration, which requires a spirit of questioning and the courage to seek truth.

The key is to be interested, the topic is appropriately brushed, some typical models at multiple levels are helpful for solving problems, the importance of understanding the knowledge points is greater than memorization, and the later topics are basically will, the key is not to make mistakes in calculation.

Some of my experience, satisfied, thank you!

Middle School Physics.

Difference from High School Physics.

From junior high school.

High school, arguably the most difficult.

The subject is physics. Junior high school things are biased.

Perceptual thinking. biased towards qualitative judgments; The high school ones are obviously.

Rational thinking. Pay more attention to.

Quantitative calculations, with.

Mathematics is more closely linked.

First, pay attention to mechanics.

Physics is the study of matter.

motion, with respect to the frame of reference is not.

The motion of the accelerated object is monotonous: stationary or uniform linear motion; Only force can make motion ever-changing. Mechanics runs through the entire system of physics, so you must learn mechanics well.

2. Gain a deeper understanding.

Concepts, many analogies are made to concepts. The same is true for pouring water into a bucket.

Volumetrically speaking, the larger the bottom area of the barrel, the shallower the water, which is like giving.

The capacitor charges the same amount of power, and the larger the capacitor, the lower the voltage.

3. Self-guidance. Formula. Don't settle for granted.

Formulas from unknown textbooks are easy to confuse or forget; Try to deduce it yourself. For example, twice the product of acceleration and displacement is equal to the end velocity and.

The square difference of the initial velocity. How did this formula come about? There is a displacement formula that is: initial velocity multiplied by time, plus time squared by one-half acceleration. Substituting "time equals the amount of velocity change divided by acceleration" into this formula, subtracting time, you can get it.

Fourth, more contact with mathematics. For example, when moving in a linear line with a uniform speed, how did the displacement formula containing the square of time come from? If you draw a "velocity time" image, the area enclosed by the line and time line in the image is the displacement. If you use pure.

Algebraic methods. Displacement is equal to velocity multiplied by time, and velocity changes all the time, which is.

Elementary algebra. It can't be solved. Look at the image, the speed relative to time.

function, its. Isn't a definite integral just acceleration? And isn't this integral value the area, isn't it the displacement?

Fifth, do more. Topic. Just take a look.

It is not enough to digest the concept and derive formulas from books, but to practice and analyze what you have learned

Work something out. Knowledge is refined and consolidated. This is important. If you do more, you will naturally become proficient, and what you didn't know will gradually become clear through repeated practice.

6. Find a way to make yourself like physics, be curious about her, and be fascinated by her. If you are interested, you will take the initiative to learn willingly, and it has nothing to do with the score ranking; It's not to study her for the sake of going to university, it's not the purpose of going to university, it's just a byway.

Byproduct. With interest, learning is enjoyment and satisfaction; On the contrary, it is barely a burden. Albert Einstein was right when he said that "interest is the best teacher".

My personal feeling is.

To learn physics well, you have to understand the principle of physics at the first time, whether you read a book or ask a teacher, even if you do a few more questions, as long as you understand what is happening, it is much simpler.

You don't need to memorize the formula at first, you can't remember the formula when you do the problem, just look at it, and when you do a few more questions, you will find that you don't need to read the book anymore.

If you want to better understand the principle, you can try to associate it with real life, for example, if there is a question that asks you the angle of force on the nail when you pull the nail, you can imitate the scene in your mind, how your father pulls the nail, etc. Or when you learn inertia, you can imagine that when you ride in a car, you brake and you will fall forward. Such associations can also increase the impression.

If your comprehension skills are not enough, the easiest way is to do more questions and know the possible format of the questions, in fact, the physics questions are almost the same.

Actually, the principle of physics is easy to understand, because it has a lot to do with our lives, and if you learn it by heart, I don't think there will be any problem.

Do more questions, use three hours a day to do the questions, only do one type of question at each stage, and then change the type after you are done, after the physics thing is on the road, you think it is very simple, and you can touch the melon along the vine, and the exam-oriented education, no matter which subject, you have to do more questions, and you will not do it at the beginning to ask the teacher and master classmates, and it is OK on the road

Just listen carefully to every lesson Do more practice and keep the sense of the question At the beginning of high school, I had a poor score in physics, but I read the second textbook issued by the school several times two weeks before the exam, and I did it twice, and I passed the exam smoothly. Don't worry, do more questions, this knowledge will be used non-stop, and slowly you will become familiar with it, and you will not even know when you learned it yourself. Hehe!!

Practice makes perfect, the key to a good sea of tactics is to pay attention to summarizing, perseverance, even if you take too many notes once or twice, it doesn't matter.

Physics is a very practical subject, and its charm is precisely the participation that its experiments give to a person. So I think the first thing is to improve your interest, if you want to improve your interest, blindly reading book knowledge will definitely be boring and boring, and you will definitely not have the confidence to learn it after a long time. Get in touch with more extracurricular knowledge to increase your interest and sense of achievement, and do more hands-on, which will play a good role and effect.

Learn by heart! (Hehe, nonsense.) ）

First, understand the basic physics content. (I'm talking about "understanding," that is.)"Understood"Physics content, if you really understand physics content, you can't do it if you want to forget the formulas in physics, so you will naturally remember it.

This process can be time-agnostic, and it can take weeks to understand a physical content. This is a slow effort, calm down and slowly comprehend... This requires the "inner peace" in "Kung Fu Panda").

Second, do the necessary problem-solving training. (This process is a test of your "understanding", which is essential, be sure to do the right amount of questions, and test how far you "understand" by solving the questions.)

This, in turn, facilitates your understanding of the physical content. There is a time limit for this, and the amount of questions is not as much as possible, but the right amount! ）

It is enough to do the above two points.

Albert Einstein said: The most incomprehensible thing about this world is that it is actually understandable.