In fact, physics is a natural science course that is not difficult to learn. You can't learn by rote. You can recite it word for word, but you still can't do the problem, don't you think? So, how to learn physics well?
As a student, learning has eight links: planning → preview before class → concentrate in class → review in time → work independently → solve problems → systematically summarize → study after class. The most important thing here is: concentrate in class → review in time → work independently → solve problems → summarize systematically. In the above eight links, there are many learning methods. According to the characteristics of physics, this paper puts forward specific learning methods for the problem of "how to learn physics well".
(1) Sanji. Basic concepts should be clear, basic laws should be familiar, and basic methods should be skilled. Give an example about the basic concept. For example, speed represents the distance traveled by an object in a unit time: v = s/t, and for the basic law, for example, the formula for calculating the average speed is also v = s/t, which is applicable to any situation. For example, the speed of a 100-meter athlete is 65438+100-meter/s when passing half the distance, and it is 8m/s when reaching the finish line. The time for running the whole course 100m is 12.5s, and what is the average speed? According to the law of average speed, the average speed is equal to V = 100/ 12.5 = 8m/s, and then let's talk about the basic method. When learning junior high school physics problems, sometimes we should pay attention to choosing "objects". For example, when solving problems with ohm's law, it is necessary to make clear whether ohm's law applies to the whole circuit, that is, the whole circuit, or to a certain resistor, that is, a single resistor.
(2) Do the problem independently. Do some problems independently with good quality and quantity (meaning not relying on others). There must be a certain number of topics, not too few, but also a certain quality, that is to say, there must be some difficulty. Anyone who studies mathematics and physics can't learn this level well. Solving problems independently may sometimes be slow, sometimes you have to take detours, and sometimes you can't even solve them, but these are normal and the only way for any beginner to succeed.
(3) Physical process. To clarify the physical process, there must be hidden dangers in solving problems if the physical process is not clear. No matter how difficult the topic is, try to draw as much as possible, some can draw sketches, and some need to draw accurate pictures, using compasses, triangles, protractors and so on. To represent geometric relationships. Drawing can turn abstract thinking into image thinking and master physical process more accurately. With this diagram, we can make state analysis and dynamic analysis. State analysis is fixed, dead and discontinuous, while dynamic analysis is alive and continuous, especially when solving circuit problems. Without drawing a circuit diagram, it is difficult to know whether the resistors are connected in series or in parallel. In addition, don't memorize the formula, think about how the formula came from and what's the use. (This is very important. You may be surrounded by people who don't usually spend much time learning physics, but the effect of learning physics is very good. Is that their body thinking is very good. If you can be familiar with the physical process of the whole topic, physics will not be difficult for you. )
(4) attending classes. Listen carefully in class and don't think or think as little as possible. Don't be self-righteous, learn from the teacher modestly. Don't give up listening just because the teacher speaks simply. If this happens, it can be regarded as review and consolidation. Try to be consistent and synchronized with the teacher, and you can't do it yourself, otherwise it will be self-study. After getting started, with a certain foundation, you are allowed to have your own activity space, that is, you are allowed to have something of your own. The more you learn, the more things you have.
(5) notebook. Class is mainly based on listening, and there are notebooks, and some things should be written down. Knowledge structure, good problem-solving methods, good examples, places you don't understand, etc. Should be recorded. After class, you should organize your notes. On the one hand, you should "digest" and on the other hand, you should supplement your notes. Notebook is not only to remember what the teacher said in class, but also to make some reading notes. Good problems found in homework and good solutions should also be recorded in a notebook, which is what students often call a "good problem book". Hard-won notebooks should be numbered, studied later and kept for life. Of course, if you understand the third point, it is unnecessary. )
(6) learning materials. Learning materials should be well preserved, classified and marked. The classification of learning materials includes exercises, papers, experimental reports and so on. Marking refers to, for example, marking exercises. General questions are not marked. Good questions, valuable questions and error-prone questions are marked differently for future reading. Marking can save a lot of time.
(7) time. Time is precious. Without time, there is no time to do anything, so we should pay attention to making full use of time, which is a very superb art. For example, we can save time by "recalling" learning methods. Before going to bed, waiting for the bus, walking on the road, etc. We can recall the lessons of the day section by section, so that we can learn them again and again and achieve the goal of strengthening. Some physics problems are more difficult, and some problems may be solved on foot. People who study physics often have several problems in their minds that they can't do and won't forget. I don't know when they will make a breakthrough and find the answer to the question.
(8) learn from others. We should learn from others, from our classmates, from people around us and see how others learn. We should often have "academic" exchanges with them, teach each other, learn from each other and improve together. We must never be self-righteous. Cann't be conservative Tell others if you have a good method, so that others will tell you that you have a good method. You should have some good friends in your study.
(9) Knowledge structure. We should attach importance to the knowledge structure, master it systematically, and systematize scattered knowledge. From the whole knowledge structure of physics to the knowledge structure of mechanics, even to chapters.
(10) Mathematics. The calculation of physics depends on mathematics, which is too important for learning physics. When I was in high school, I didn't feel the close connection between mathematics and physics. It was only in college that I found that mathematics and physics were equally important, and physics could not be separated from mathematics as a calculation tool. To learn mathematics well, we must make good use of this powerful tool.