How to learn the physical voltage well, and how to learn the voltage in the second year of junior hi

Clarify the basic concepts and familiarize yourself with where they come from and how they relate to each other.

It is necessary to do some questions independently, with quality and quantity. There should be a certain number of questions, not too many, not too few, but also a certain quality, that is, a certain degree of difficulty. Anyone who learns mathematics, physics and chemistry will not be able to learn well without going through this level.

Solving problems independently, sometimes slowly, sometimes detours, sometimes even unable to solve them, but these are normal and the only way for any beginner to succeed.

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. Regardless of the difficulty of the topic, you should draw as much as possible, some sketches are sufficient, and some should be precise to show the geometric relationship. Drawing can transform abstract thinking into figurative thinking and grasp physical processes more precisely.

With graphs, state analysis is fixed, dead, and intermittent, while dynamic analysis is alive and continuous.

Study materials should be well preserved, classified, and marked. The study materials are categorized into practice questions, test papers, lab reports, and more. Marking means, for example, for practice questions, that the general questions are not marked, and the good questions, valuable questions, and error-prone questions are marked differently for future reading, and marking can save a lot of time.

It is necessary to attach importance to the knowledge structure and systematically grasp the knowledge structure, so that the scattered knowledge can be systematized. It is as large as the knowledge structure of the whole physics, as small as the knowledge structure of mechanics, and even down to the chapters, such as the knowledge structure of statics, and so on.

First back! Back concept.

Second, comprehension comprehends meaning.

The third is to do the questions and practice more.

It's very important to listen to the lecture in class and not ask questions!! After class, I am reviewing the old content and preparing for the new content.

Current is equal to voltage divided by resistance... To learn physics well, you must first learn mathematics. If you think it's right or adopted, please give me a good review, thank you.

Ohm's law: i = u r. The current in the conductor is proportional to the voltage at both ends and inversely proportional to its resistance value, which is Ohm's law, which was discovered by the German physicist Georg Simon Ohm in 1826, and the unit of resistance was set as ohms in honor of his contributions.

Current is equal to voltage divided by resistance...

To be specific, the voltage is only because of the resistance problem, if several different resistors are connected in series, the voltage is divided according to the resistance value, and the parallel voltage is the same.

Memorize the definition, solve according to the circuit diagram, and listen carefully in class.

1) Pre-class preparation is important.

2) Don't concentrate on two things in class 3) Make a summary after class and then practice related homework, which will help consolidate knowledge 4) Buy exercises that are suitable for you according to your actual situation 5) Believe in yourself when studying.

The emphasis is on mastering the model, and all physical problems can be turned into familiar physical problems, which is the so-called basic model.

It is important to understand under what circumstances the formula is deduced and in what context it is used.

The most important analysis is to have a macro idea and a way to deal with specific details.

First of all, you must be interested in physics, interest is the source, there will be motivation with interest, the next is to prepare before class, the teacher is going to preview the class to draw what you don't understand, listen carefully to what you don't understand in class, organize your class notes in class, memory is limited, and when you forget, there is still a look, and finally it is consolidated after class, do type questions, draw inferences, and build wrong question books.

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 only a bend is a vacuum, which can be understood in this way: the vacuum is really empty, and there is no shortage of mountains and difficulties.

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 that "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.

Read more textbooks, strive to understand well, memorize on the basis of understanding, and use mathematical methods to solve problems. The mystery of understanding is association and imagination, life and experiment are the best materials for association, every time before doing an experiment, we must simulate the experimental process in our minds, imagination is to think with a flat or three-dimensional dynamic or forbidden image - the basis of image thinking is to transform knowledge into image closure or something that is easy to accept (common sense), such as understanding Newton's first law (law of inertia) can associate the feeling of acceleration and deceleration when taking a bus, Weightlessness and overweight can be associated with taking an elevator.

The most important thing in physics is the idea of conservation, the conservation of mechanical energy, the kinetic energy theorem, and the functional relationship are actually the conservation of energy clusters, and the conservation of momentum is actually the constant state of motion of the center of gravity of the system.

Physics is the natural science that studies the structure of matter, or the interaction and motion of large matter. Practice more and be serious. It's not that hard to stand upright. Serious and rigorous, careful scrutiny, more practice and more doing, self-experimentation is very simple,

Analyze how to be forced, how to move, who gives birth to electromagnetism, and learn to give up when doing problems.

First of all, the concept should be clear.

In particular, electric potential energy, electric potential, electric potential difference. These concepts cannot be mixed.

Then the characteristics of the electric field lines should be clarified, and the properties of the electric field should be clarified (the physical quantities introduced to represent the nature of the force of the electric field); The property of electric potential is also (a physical quantity introduced by expressing the nature of energy in the electric field).

The second is the formula.

If you feel that rote memorization is not easy to memorize, you may wish to understand how to deduce it, and then memorize it.

There are also a few key physical quantities that should be memorized. For example, the amount of charge of the meta-charge; electrostatic force constant, etc.

If you don't feel at ease, do more questions. Without him

Staring at the physics book.

Then write the question. After making a certain amount.

It suddenly dawned

This chapter is not difficult, but it is annoying and has many concepts.

It's good to clear your mind.

That place we don't take in Jiangsu.

If you take the test, it's actually not very difficult.

But to understand the principle, this question teacher has a better effect, a real person explains, hehe, and there are some points to note here.

If you're not careful, you take it for granted.

The result was wrong.

It's good to read books carefully, and that's how you really learn physics.