Is there any good way to learn physics electricity?

If you really don't understand it, it is recommended to join a tutorial class. But if you really don't want to join, you can learn better than their classmates who have taken tutorial classes by studying circuit diagrams and Ohm's law yourself, and it depends on whether you understand it or not. Ohm's law is that the current is equal to the voltage divided by the resistance, the current is proportional to the voltage and inversely proportional to the resistance, and the resistance of the conductor is a characteristic of the conductor, which has nothing to do with voltage and current.

In other words, no matter what the voltage and current are, the resistance is still the same value. Resistance is only related to its cross-sectional area, length, and material. (Junior high school physics generally does not consider the temperature of the resistance, and usually, the resistance increases with the increase of temperature; Conversely, the lower the temperature, the lower the resistance.

For example, when the temperature of mercury drops to 4 K, which is -269 degrees Celsius, the resistance is zero, which is called superconductivity. ）

Uh... Having said so much, in fact, the most important thing in physics is not to memorize, but to understand, if you learn electricity, the foundation is very important, the circuit diagram must be able to read, and the series and parallel connection must be distinguished. When you encounter a circuit diagram that needs to be solved by Ohm's law, you should remember the current and voltage characteristics of the series-parallel circuit.

Find a few more exercise books, study how to go with the circuit diagram in it, how to use the formula, be proficient in the most basic knowledge points, don't deduct the difficult problems first, study the most typical questions thoroughly, and there is no big problem in dealing with weekday exams. For the high school entrance examination, physics is simpler than mathematics, but for the second round of review, when the basic knowledge is already very proficient, you can find this Olympiad book to take a look at it, study the problem solving ideas, methods, and blind spots that the teacher does not talk about on weekdays, and broaden your knowledge, and there will be no problem in physics for the high school entrance examination. Of course, under the above two conditions, the most important thing is to think flexibly and use flexibly.

Physics in the second year of junior high school mainly talks about mechanics, and it has nothing to do with electricity in the third year of junior high school, so don't be afraid Since you are learning electricity now, you should first try to learn electricity well, and wait for the review before the high school entrance examination to review the second physics Electricity is still the main part of the high school entrance examination

Upstairs: Are you sure you know what Ohm's law is? The physics teacher floated over and looked at the circuit diagram more If you understand the circuit, you will be able to understand it, and if you can't understand the series and parallel connection, it will be useless.

Find a teacher to tutor individually, you won't.

Remember more, do more, think more, ask more. There are no shortcuts.

First of all, ask yourself if you are interested, look at all kinds of high-tech today, the background is supported by physics (in fact, chemistry is also microscopic physics), so to cultivate interest, electricity is amazing, but not so frightening, find some small components to make a few small circuits, not only to cultivate hobbies and hands-on ability, but also to understand deeply; Do not seek more questions, but seek refinement, mainly to exercise thinking; Usually read more popular science magazines to learn other people's thinking; Also, get into the habit of thinking about things all the time, when eating, sleeping, and even going to the bathroom! That's how I loved it when I was studying basic electricity. Remember, physics is not about preparing for exams, it's about cultivating a true love of science, and that's more important than anything else!

If you do this, the exams are all pediatrics.

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.

It's useless to be afraid.

1.Do more questions and buy workbooks for specific training.

2.Listen carefully in class and don't just take notes.

3.If you don't know the question, you must ask the teacher, or ask the classmate who can explain it clearly4Learn to summarize and review questions that you have made mistakes in the past.

1. Be interested when you first start learning, don't be afraid.

Second, when you first learn, you should do experiments, which are based on experiments and easy to understand.

3. Start by drawing the circuit diagram, if there is a problem with the circuit diagram, it will be more difficult to learn the electrical content in the future.

I hope these comments will be helpful to you in your studies.

Personally, I think that if you follow the teacher in class, and whatever the teacher asks, you will boldly say your thoughts, so that there will be no desertion in class, and your grades will improve quickly, I hope it will be useful to you.

Grasp the most basic, series and parallel characteristics, and then do more questions about electricity, and learn to find the common ground of the same type of problems after doing it!

When I studied electricity, I thought of wires as water pipes, electricity as water flows, power supplies as water pumps, and electrical appliances as obstacles that hinder the flow of water. It is easy to understand the circuit diagram by substituting the thinking method. If you understand the circuit diagram, you will understand everything.

If there is anything else that you can't, you can ask me.

Everyone has their own learning method, mine may not be suitable for you, it is recommended that you summarize it yourself.

Electricity is first and foremost, the formula must be remembered; Secondly, every question must be deeply understood, do a will be a one, if you can't, you must understand first, after the teacher talks once, you must go home and think about it again, and think about it again in a few days. There are very few types of physics problems, as long as you do one of them, I believe you will be able to learn physics well. Come on!

Mathematics must be studied before physics can be learned.

The first thing to do is to find the joy of learning physics. To integrate physics and electricity into life, we should think more and practice more. Comprehensible memory. Use the formula well. The test is usually close to a perfect score.