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Hehe, he's right, I'll take a look too.
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Grade 8 A: Propagation of sound, optics, change of state of matter, composition of circuit of change of state of matter.
Grade 8 Lower: Electricity, Electricity and MagnetismElectricity and Magnetism, Information Transfer.
Grade 9: Mass and Density, Motion and Force, Buoyancy and Pressure, Work and Mechanical Energy, Heat and Energy.
Sound propagation: To understand the speed and medium of sound propagation, understand what determines the timbre, tone, and loudness, and the vacuum cannot transmit sound.
Optics: The fastest speed in the universe.
Change of state of matter: understand that condensation, solidification, and liquefaction are exothermics, and melting, sublimation, and gasification are endothermics.
Change of Matter: Understanding Currents and Circuits.
Electricity: The most important part of this chapter is to understand voltage and slip rheostats, Ohm's law and electrical power, Joule's law.
Electricity and Magnetism: Understand the relationship between electricity and magnetism.
Transmission of information: Understanding**, speakers, fiber optics and communications.
Mass and Density: Learn what mass and density are and how to calculate them.
Motion and Force: Understand that the telemotion and rest of an object are relative and uniform linear telemotion, Newton's first law, and the equilibrium of two forces.
Buoyancy and pressure: Understand the relationship between pressure and buoyancy and fluid pressure and flow velocity, atmospheric pressure.
Work and Mechanical Energy: Understand what is work, power, and mechanical efficiency.
Heat and energy: Learn about molecular thermal telemotion and internal energy, heat engine, and specific heat capacity.
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Kinematics (most detailed), Optics (simple), Electromagnetics. "Textbooks are mostly textbooks of the 15th National Plan".
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8th grade: Acoustics, Optics, State of Matter, Electricity.
Lower 8th grade: Electricity, electromagnetism, information transmission.
Grade 9: Movement and Force, Buoyancy, Pressure, Gong.
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If you want to learn by yourself, of course, you have to buy books, but how can you learn by yourself without buying books?
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It is recommended to read the high school physics textbook directly! It will be more useful! It's still understandable!
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Most of the physics and mechanics parts in college have been learned in high school, but they are just explained again with calculus, and the conclusions are very familiar, so as long as you learn calculus well, you can deduce. The electromagnetism part is an in-depth derivation of calculus, and many formulas are variations of calculus. It is enough to understand the complex diffraction derivation of optics, and it is generally not required to be able to derive, but simple refraction is to be able to deduce.
Thermal science is very theoretical. I only learned a little bit in atomic physics high school, and this part is mainly about energy levels to understand. The latter quantum mechanics is a further analysis of Schrödinger's formula in atomic physics.
In fact, it is to learn the basic calculus well, and then keep pushing the formula.
Experiments are also important, the hardest ones are optical experiments. The main purpose of the experiment is to understand the principle and know the general experimental steps, so the experiment must be pre-studied.
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As someone who came from high school, I think the most important thing is to understand the physical processes and principles by taking notes from the teacher during class, and to clarify the scope of their application. Practice it well. Hope it helps.
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You can memorize the formula first and find relevant exercises to do.
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1.Everyone has his different way. You can ask your classmates who have good grades in your class for advice.
2.Listen to the lecture and take good notes. - This should be the most basic!
3.Learn physics through experiments. After all, practice makes sense. Through experimentation, memory can be strengthened.
4.Ponder. Take a little time each day to think. (I think this should be what many physicists like Newton and Einstein were happy with!) )
5.Doing questions: the inevitable channel of test-oriented education.
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Physics focuses on understanding, by doing questions to consolidate, first of all, try to understand the teacher's things in the classroom, and then do some exercises, must do it yourself, there is no understanding of the textbook, because you don't know what the textbook is something you don't remember, if you know what the textbook says, when you can't do it, you can associate the chapters about the problem about those laws, can you use this problem, at the beginning of one by one, it will slowly become faster, no need to deliberately set, you will think about the laws that can be used. The key content of high school physics is also not much of the main content, force and motion: there is a Newton's 3 law, momentum, kinetic energy, energy, these are half mastered in physics, and then electricity:
The main thing is experimental circuit analysis, the experiment must pay attention to doing it yourself in the first and second years of high school, and then remember 4 to 5 laws; And what heat, light, etc., you only need to memorize the concept, and the concept is no problem if you remember these questions.
In short, you still have to think more about physics, doing questions is just to help, really understand it thoroughly, and doing questions is just to help you practice your speed to cope with the college entrance examination.
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Mine, if you really want to learn well, add me, I'll teach you, package you to learn well.
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Help you divide into the following categories: middle school, high school, and college (I haven't gone to college yet, this kind of can't help you).
One of the junior high school students is to eat through the books, be able to remember all the knowledge points and then do the questions, not the sea of questions, not the sea of tactics, to do a good job of the questions such as Haidian famous questions or dictionaries (this book I don't recommend too many questions for fear that you will fall in), when you do a certain amount of questions, you will find what will be tested and what will not be tested, then it will be almost, that is to review and look at the book (I mean you can look at the book to think of what questions these knowledge points draw, how to combine) and then do some test papers. Absolute masters.
If you want to divide the high school entrance examination again, you usually do more questions on the line, just a little knowledge, and the teacher is not wrong to go, the teacher will definitely analyze the various question types in detail, of course, you can also summarize these in the question, I don't have this experience, so you still have to communicate with the teacher more (in addition, tell you, you can look at the knowledge points and make up a question yourself, get more will find all aspects of the question, the role of each sentence in the question, of course handy, you must know that the question must be difficult)
If you take the college entrance examination, then there are more knowledge points, of course, remember the knowledge points is the first premise, and then feel the use of knowledge points in the questions, of course, you can deal with the elective part according to the level you want to take (provided that you are from Jiangsu), which you can ask the teacher.
If you're a contest like me, then you must be a freshman in high school (it's too late to ask this question in a sophomore).
The basic skills must be solid, in addition to kinematics, statics, force and electromagnetic synthesis, optics, and heat must be studied well, at this time you must do the question, I recommend you two books Shen Chen's Sprint National High School Physics Competition and Fan Xiaohui's National High School Physics Competition Practical Question Dictionary.
Hard work is necessary, and there is a saying about where the work is used, so work hard.
Is it a junior high school student? In junior high school, you have more time, and you can spend more than 10 minutes reading literary works every day, which is conducive to cultivating a grasp of the feelings of the articles. Moreover, the teacher will generally teach the answer format of modern reading, and if you hold this up, you will add or subtract it appropriately when answering the question; You can also buy a book to read, three articles a week, and if you do more, you can roughly grasp the main points of the article, and you can naturally get high scores for modern reading. As for composition, you can write a weekly diary, excerpt good words and sentences from reading, and you can also spend a few minutes a day reading newspapers and news, learning about current events, accumulating writing materials, or buying a material book, which is very helpful for writing, not only in junior high school, but also in high school. >>>More
I play as a playmaker.
I'll tell you how I practice dribbling, huh. >>>More
Math is all about doing problems non-stop.
Consolidate the types of questions and knowledge points you will do. >>>More
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Learn more, watch more, talk more, and you can learn well.