What should I do if I don t learn physics well in the second year of junior high school?

Starting from the positive pole of the power supply, you can take a pen and look along the wire. encounters a fork, and the part behind the fork has electrical appliances, and then finally merges into a wire, which is a parallel circuit; If there is no fork in the road, it is a series circuit.

ps: It's an electrical appliance that doesn't count!

In the parallel connection in the high school entrance examination, the syllabus requires two electrical appliances, so there is no need to worry about being too difficult to judge or having mixed circuits. Sometimes knowledge doesn't have to be a way to tell, it's just a matter of feeling. As long as you figure out the simplest parallel circuit first, and then do it when you encounter a problem, ask the teacher, and it will become more and more comfortable.

It is the best way to follow the wire with a pen!

My experience

Studying physics is not the same as studying liberal arts.

I recommend that you study physics using the interpretive learning method.

How to learn it?

Whether you understand the answer to a question or a formula in physics, you have to try to explain it with your existing knowledge, and when you can explain every formula and every physical phenomenon correctly, you will be considered to have learned physics well.

Memorizing physical formulas can be the biggest headache for some people, but I don't remember formulas at all, and as long as you can explain the formulas with other knowledge, then you won't forget those formulas.

And the ultimate essence of physics is "conservation", such as conservation of kinetic energy, conservation of kinetic energy, conservation of energy.

Nothing appears out of thin air and does not disappear out of thin air.

And by constantly learning physics in an explanatory way, you will find connections between various phenomena.

The more connections you understand, the less likely you are to forget.

That's how I studied physics in high school, and I was very good at physics.

…Physics is a system, and all formulas are connected, and you have to understand the meaning of these formulas, and once you understand it, physics will never change from its roots, and physics before college is even simpler, and it can't be simpler to understand.

Serial-parallel circuits, serial with serial calculations, merge with merger, and do not affect each other, what do you not understand.

You mark the same end of the two resistors with the same color. If one end of the same color is connected together, it is parallel, and if the ends of different colors are connected together, it is connected in series. Don't be fooled by complicated cables, the most important thing is to find the connection point.

The circuit is like a road to be walked from one place, the starting point (positive pole) to the end point (negative pole). Those on the same road are called tandem! There are forks, not on the same road, called parallel!

There may be a very complicated diagram but the glasses are clear, sort out each path The glasses looked at the diagram and walked silently in my heart

Even drop mom, you better take a good look at the second grade and ask the teacher again.

Calm down, take a good look at the textbook, and believe you can do it.

Pay attention to the lectures in the future, ask the teacher if you don't know, and ask the tutor if you can.

How to remedy the poor physics in the second year of junior high school is as follows:

Poor physics in the second year of junior high school can be remedied by formulating an effective study plan, clarifying the knowledge system, finding a suitable learning method for yourself, and consulting teachers and classmates. In view of the weak foundation of physics in the second year of junior high school, it is necessary to formulate a more systematic and specific study plan and solve the existing problems with scientific methods.

Try to standardize the study time for each time, write summary notes, set difficult points, summarize key points, and practice simply. Physics in the second year of junior high school is a huge and complex subject, which can focus on mastering the important and difficult knowledge while mastering the basic parts. It is suggested that the method of combining knowledge classification and explanation exercises should be adopted to comprehensively consolidate the basic theories in major fields such as mechanics and optics.

Every student has their own preferred learning style and habits, and if they want to effectively improve their physics scores in the second year of junior high school, they need to find their own learning methods and develop an interest in continuous learning. Taking the interest in learning as the starting point, the relatively abstract knowledge is transformed into a visual and attractive knowledge point.

In the process of learning physics in the second year of junior high school, it is inevitable that some problems will be encountered. At this time, the best solution is to ask the teacher and classmates to communicate. It can not only solve existing problems, but also help to grasp knowledge points more efficiently and comprehensively.

In short, if you want to remedy the problem of poor physics in the second year of junior high school, you need to study and practice strategically, use a variety of methods to check and fill in the gaps, and at the same time, you must invest a lot of time and energy. Only in this way can the desired effect be achieved.

Expand your knowledge:

Physics is the study of the most general laws of motion of matter and the basic structure of matter. As a leading discipline in the natural sciences, physics studies the most basic forms and laws of motion of all matter, from the universe to elementary particles, and thus becomes the research foundation of other natural science disciplines.

Physics began in the days of Galileo and Newton, and it has become a fundamental science with many branches. Physics is an experimental science, and it is also a science that advocates rationality and attaches importance to logical reasoning. Physics makes full use of mathematics as its working language, and it is one of the most sophisticated natural sciences today.

There are a lot of physics knowledge points in junior high school, and there are many extensions. Can't let up. I was good at physics in junior high school. It's always around eighty minutes. Most of them are careless points lost. My approach is also very simple. Hope it helps.

First of all, I always know the concept of the book very well and understand it well.

Second, I attach great importance to the example questions in the book and always study them. The example problems show the basic application methods and problem-solving thinking. It mainly depends on thinking and methods, if you have the conditions, you can learn with a tutorial class to expand your own learning thinking, that's how I came over, you can refer to it, and now it seems that you can also try it out for free.

Third, do the exercises. The practice of physics exercises is indispensable. But don't do all the questions, you will do a lot of useless work. The exercises in the book, the types of difficult questions, etc., are generally very standardized. From easy to difficult.

Fourth, learn to think independently. Don't ask anyone about everything. Don't always look at the answer to form a dependency. It's important to think more and have your own thinking system. It also exercises the brain.

Fifth, there will be no practice there.

Special exercises are carried out for the type of questions, knowledge points, and places that will not be conducted. Now there's a word for deliberate practice. That's what I'm talking about.

1. Factor analysis method: use relevant physical formulas, list the relevant and class relations related to the problem, understand the invariant factors, analyze the variables involved in the problem, and make solutions, such as the same object in the same horizontal plane with a speed of 5 meters and a speed of 1 meter second respectively for a uniform linear motion, how the magnitude of friction changes.

2. Diagram method: carefully review the problem, and show the scene by drawing, such as the schematic diagram of force analysis in mechanics, the optical path diagram in optics, and the circuit diagram in electricity.

3. Extreme method: deliberately expand the difference of variables, and expand the change can make the problem more obvious, easy to argue and deepen the discussion of the problem. For example, errors in measurements.

5. Counter-evidence: give counterexamples to some propositions and give them a negative argument. It is especially effective for words such as "definitely" and "definitely".

Clarify the topic

This is the most basic requirement for solving the problem. Especially when you encounter questions that seem to be easier, you should look at them clearly. Because the more simple the question, it is likely to contain a trap deliberately set by the woodchip questioner.

When doing the questions, we should do: first, do not miss the questions; Second, don't read the wrong questions; Third, we must look at the topic; Fourth, we must look at the whole topic.

Pay attention to some of the key words in the question: the height of the voice and the volume of the voice; how many degrees the temperature has risen and how many degrees has the temperature increased in the calorific calculation; In lens imaging, tell whether it is the object image distance, the objective lens distance, or the image lens distance, etc.; Pure Nenma.

Pay attention to some of the conditions in the question, such as smooth, stationary, floating, uniform linear motion, vertical, horizontal, left, right, column, cube, container filled with liquid, electrical appliances are normal, working, etc.

Pay attention to the implicit conditions in the question, such as connecting the electrical appliance to the home circuit......Wait.

Pay attention to the normalization of answers

The language used in answering questions should be standardized and accurate. For example: evaporation, volatilization; Vertical down downward.

When answering questions, the format used should be standardized, and no typos should be written, such as melting, melting, melting; Vertical Straight: Gradually getting bigger Getting bigger or bigger; condensation; Vaporization Gasification.

The handwriting should be neat and clean when answering the questions, so that the basic questions do not lose points; Less points will be lost for questions of medium difficulty; The finale question will grab more points, and no zero points will be allowed.

Learn to use screening and exclusion methods

The two methods are similar. The screening method is to filter the options according to the meaning of the question stem, and finally find the answer that matches the meaning of the question.

The rule of elimination is to use the mastered physical concepts and laws according to the requirements of the topic to exclude options that are irrelevant to the question stem or lack scientific nature.

Now there is a lot of **education**ah, junior high school physics, you can learn in the classroom room**, they do a better job in physics teaching.

Nothing difficult. But physics is all about thinking.

Sometimes it is necessary to use the idea of combining numbers and shapes in mathematics. Watch more popular science stuff, and science fiction movies and the like, physics is wonderful, but unfortunately I didn't have a chance to learn it.

To understand the principles of physics, to understand physical phenomena, it is good to take your time.

Be sure to listen carefully in class!! I suggest you buy a copy of "Complete Interpretation", our teachers in the eighth grade are for each of us to buy, "Complete Interpretation" has a very detailed interpretation of the text, and more importantly, there are many good topics! If you can put this book to good use, you can learn physics well.

In the early 8th grade, a lot of physics knowledge needs to be memorized! But in the later stage, it is more inclined to understand, and if you are struggling to learn physics, you must consolidate it after class, physics is the highest score except for the number of words!!

You also have to learn to ask questions, don't be afraid to ask the teacher questions, I love to ask, and the teacher praises me! As long as you don't understand, just ask, if the teacher blames you, he is an incompetent teacher!!

You can also look up some information on the Internet, for example: can 10N of water produce 20N buoyancy? Although I was in the third year of junior high school, I always thought that I couldn't, but I found out that I could !!

Hope you can adopt, o(o thanks!)

Is it the second year of junior high school? That's not even the difficulty of physics, it's all concepts. Bad physics must be caused by a lack of clarity in the concept.

It is recommended that you buy a knowledge list, green skin, and look at the things on it one by one. All the concepts must be mastered, all the formulas must be memorized, and the most important thing is to figure out what the conditions of their use are and when to use them. Physics is just a difficult problem, and if you can't do it, it's a conceptual problem.