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a) Three basics. The basic concepts should be clear, the basic laws should be familiar, and the basic methods should be proficient.
2) Do the questions independently. It is necessary to do some questions independently (meaning not relying on others) and with quality and quantity. There should be a certain number of questions, not too few, but also a certain quality, that is, a certain degree of difficulty.
c) Physical processes. It is necessary to be clear about the physical process, and there is inevitably a hidden danger of solving the problem if the physical process is not clear.
4) Attend classes. Listen carefully in class, and don't run away or try to run away as little as possible.
5) Notebook (error correction book). The class is mainly based on listening to lectures, and there is also a notebook to write down some things.
6) Learning materials. Study materials should be well preserved, classified, and marked.
vii) Time. Time is precious, and without it, you can't do anything, so be careful to make the most of it.
8) Learn from others. Be humble and learn from others.
9) Knowledge structure. It is necessary to attach importance to the knowledge structure and systematically grasp the knowledge structure, so that the scattered knowledge can be systematized.
9) Mathematics. Physics calculations rely on mathematics, and mathematics is too important for learning physics.
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Observe more of life and connect knowledge with life.
Keep in mind the formula and its meaning, integrate the formula, pay attention to the deformation of the formula, and use it in conjunction with related formulas.
Have fun learning and learn to have fun with physics experiments. to encourage yourself.
Good luck with physics.
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In this problem, the two objects AB can be seen as a whole. That is, the integral method is used to find the acceleration a=f m=8 10=where m is the mass of the two objects and the velocity v=at=times 4=
If you don't understand, you can ask.
If they are close together at the beginning, then they have to be conserved with momentum. Have you studied this? If you haven't learned, follow my method.
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Physics may seem troublesome, but in fact, you just need to memorize the theorem formula! No matter how the topic changes, it is based on the formula learned, and then do a few more related problems. Remember not to rely on the tactics of the sea of questions, it is more effective to do classic questions.
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The content before the second year of junior high school is just to lay the foundation for high school, and the mechanics in the second half of the second semester of junior high school is the content of the high school entrance examination.
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First of all, of course, be interested;
Then, seriously one hundred and twenty percent.
If possible, experiment as much as you can.
Preferably, you can try to explain some of the phenomena you see in your life (don't be afraid of being wrong, communicate with your physics teacher more, like a brother.) )
Finally, it is inevitable to do more questions, but don't do too much, and look for representative ones. The most important thing is to be sure to use the formula flexibly (which is nirvana!! Ahh!!h
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Hello, physics is a natural science course that is relatively difficult to learn, and you can't learn it by rote memorization. Physics classes are taught once in junior high school, high school, and university, and there are many qualitative things in junior high school, more quantitative things in high school, and more quantitative things in college, and they have to be calculated with advanced mathematics. So, how do you learn physics well?
If you want to learn physics well, you should be able to learn not only physics well, but also other courses such as mathematics, chemistry, Chinese, history, etc., that is, you can learn what you learn well. In fact, in school, we see students who study well, learn all subjects well, and students who study poorly learn all subjects poorly, basically the same, in addition to the innate factors with a small probability, there is indeed a problem of learning methods here.
Who doesn't want to be a good student, but if you want to be a really good student, the first thing is to study hard, that is, to dare to endure hardships, to cherish time, and to study unrelentingly. Establish confidence, firmly believe that you can learn any course well, firmly believe in the "transformation and conservation law of energy", and firmly believe that if you have a few contributions, you should have a few gains.
The first point mentioned above should be said to be a matter of study attitude and ideological method. The second is to understand that there are the following eight links in learning as a student: making a plan, preparing before class, concentrating on class, reviewing in a timely manner, doing independent homework, solving problems, systematically summarizing, and learning outside of class.
The most important thing here is: concentrate on class, review in time, work independently, solve problems, and summarize systematically.
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Yes... Do more exercises, memorize the basic formulas, and have the ability to read the competition book to deepen it.
As the winner of the provincial first prize in the physics league, through years of experience, I have summed up: it is impossible not to do more basic questions, and the upstairs is full of... The basic questions are about the proficiency of formulas. and the ability to draw inferences.
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Physics is not as difficult as it seems. A lot of knowledge points are concentrated on some typical question types, and the typical question types are well understood thoroughly, and the rest is easy to do. And personally, I don't think it's about doing more questions, it's about doing it well. If you get it through a question, you can draw inferences.
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Physical quantities are all kinds of quantities (constants or variables) that can describe physical properties introduced for the study of physical phenomena.
In mechanics, "first whole, then isolation", which is a commonly used way to solve complex physical and mechanical problems, when solving physics in this way, it is generally necessary to consider several objects with some same or similar physical properties (as the same system) as a whole, and then consider these objects separately.
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A physical quantity is a quantity that describes physics. Such as time, distance, density, etc. If we want to describe a physical quantity, we use the unit, for example, density is a physical quantity, and its unit is kg m*3,.
In mechanics, the whole first and then the isolation are mainly used to find the force between two or more objects.
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This belongs to mechanical analysis, it can also be said to be the decomposition of force, "whole" and "isolation" are not fixed, you can first separate the whole and then isolated, or you can first part of the whole, which depends on the specific situation, the specific situation is analyzed.
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Physical quantities are used to describe and describe physical phenomena introduced by place nouns, such as: velocity, acceleration, work In mechanics, "first the whole, then isolation" refers to: in some problems involving physical connectors, the methods or ideas used are first analyzed by the overall force, and then analyzed by the force one by one.
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**Two. Problem 1: There is a current passing through the ammeter, and the pointer of the ammeter is deflected.
Problem Min Ji 2: The greater the total induced electromotive force by i=e r, the greater the current, and the greater the deflection angle of the ammeter pointer.
Problem 3: The induced electromotive force generated by rapid insertion into the production hole is large, and the induced electromotive force generated by slow insertion is small.
**Three. e=δφt
e=blvt/t=blv
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I would like to introduce you to the learning method of Li Xiaopeng, the top student in the college entrance examination, and don't take a try.
Systematic learning approach.
First, the fundamental law of learning - clear thinking.
1. Simple learning - focusing on the learning of knowledge points - understanding, memorization, and practice;
2. Systematic learning - induction and summary - skeleton, sorting and enrichment;
Complete learning is a combination of yes and 2.
2. How to use the fundamental laws to learn:
1. Problems: many knowledge points and a wide range of knowledge;
2. Problem solving process: the process of establishing the connection between various knowledge points;
3. Unable to solve the problem: breakpoint;
4. To learn systematically: there is an overall game of chess in mind;
3. How to Conduct Systematic Learning:
1. Establish a knowledge framework;
2. Fill the skeleton with flesh and blood;
3. Find out the connection between the vertical and horizontal directions of each part.
Fourth, the complete process of systematic learning:
1. Draw a complete knowledge structure diagram;
2. Connect the knowledge points in this diagram with the specific learning content (fill in the flesh);
3. Transplant this interconnected knowledge system into the brain as a whole.
Don't give it a try.
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The first is to understand what is being taught in class and what is in the book.
The second is the sea of questions.
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It's hard to say, everyone's situation is different.
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Before doing a question every time, take a good look at the relevant example questions, understand them thoroughly, and find out the ideas for solving the problems. When you do the problem independently, follow the steps of the example problem solving, develop the habit of solving the problem systematically, and don't solve the problem with a hammer in the east and a stick in the west.
Make sure to get the problem in the future, and immediately have a rough way to solve the problem.
You should develop the habit of solving problems independently, even with the help of other students, you must do it again independently.
Don't engage in sea tactics.
Learn physics to see more, ask more, do more hands-on, physics is a very experimental discipline, you not only have to watch the teacher do a variety of demonstration experiments, but also do a lot of experiments by yourself, some experiments can be done at home because of the ugliness, it is recommended that you find some popular science physics books to look at first, improve your understanding of physics, interest, do not rigidly memorize definitions, memorize formulas, set of formulas to solve problems.
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Physics below the third year of high school is scum. To memorize formulas to understand formulas, there are some derivations that you have to learn to derive by yourself. The basic concepts need to be absolutely clear.
When taking the exam, you need to understand the questions. It's better to spend a little more time understanding the questions than tossing around for half a day and still getting it wrong because you didn't understand the questions.
There's basically no problem with this kind of thing. I would like to say that the foundation is the most important. In fact, most of the exam questions are still basic.
Physics after the third year of high school depends on IQ. If the IQ is lower than 120, don't think about it. You can get points for the basic questions.
If you don't really love physics, I don't think physics is important. (== This is nonsense.) Ignore it.
Oh. That's right. Also, you have to be careful when doing the questions. Don't make low-level calculation errors.
The rest is actually to be practiced by yourself. It's useless to just talk about it.
Other than that, I think upstairs is right. Problems in classical mechanics should be learned to relate to real life. , maybe it will help you a lot.
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Observe more, think more, and connect with reality.
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Hehe, he's right, I'll take a look too.
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