How to learn physics in the second semester of junior high school 5, how to learn physics in the sec

Read more books and master the essentials of knowledge. Think more and observe more in life. For example, I saw that the small lanterns hanging in the hotel suddenly went out.

That is the series circuit, which is broken in one place and broken in the other. Another example is when we sit on a train and see a tree moving. This is because the selected reference is different.

If we take the train, a dynamic object, as a reference, then the tree is moving. If you use a tree as a reference. The train is moving, etc.

There are many such phenomena in life. Integrate knowledge essentials into your life. In order to integrate and master knowledge.

Do more questions. To draw inferences.

Write concepts silently, memorize the format of calculation problems, and look at the answers to more difficult problems in physics, so as to see the "crux".

I make use of various formulas and skillfully deform formulas, etc. Memorize basic concepts; Here's what I did

There are still relatively few knowledge points in junior high school, the key is to understand, only by understanding can we use it flexibly; I suggest that you still read the textbook thoroughly, supplemented by an appropriate amount of practice questions, not too many but more precise.

Be sure to read the textbook thoroughly and ask questions to students with good grades, then there should be no problem.

It's best to learn to make a cheat sheet for each chapter, just be lean. The main thing is to memorize the questions made by the teacher.

You can take a nap if necessary.

If you did well last semester, believe in yourself!

On the contrary, look forward to the high school entrance examination.

It's very simple, don't be afraid, observe more in ordinary life, are some phenomena of daily life, and then some formulas should be remembered, many questions are directly applied to formulas, do not have to draw inferences!

It's actually very simple.,Just follow the step-by-step line.。。

You need to understand that the true meaning of learning is to learn new knowledge and explore the unknown world.

Physical physics is the principle of things, in which you will learn physical phenomena that you have not understood before. It can broaden your horizons of understanding the world, so don't worry, be bold and truth-seeking, and study hard. Don't chase how many problems you can solve after each lesson, learn from each lesson and use it to explain the problems you encounter in life.

Be happy to learn!!

Physics in junior high school is relatively basic.

Pay attention to the second year of junior high school; You must listen carefully in class, and every day the teacher should take a look at what the teacher has said on the same day, and pay attention to doing more questions.

I think that's it.

Good luck with your results.

Be patient, attentive and draw inferences from others.

Just listen carefully to the teacher Really, sometimes physics is quite simple, and I usually score more than 80 or 90 points in the test. Seriously, our teachers are really good at teaching. Just do a few more questions. Really, that's a good thing to say.

As long as you listen carefully in class, do your homework carefully after class, ask if you don't understand, understand it, and you can do well in the exam I'm about to take the final exam My second year of junior high school in the first semester of physics scored more than 90 points every time I scored 100 ah I hope you study well I'm also in the second year of junior high school (*

Comprehensible memory, see more and think more.

Cultivate more interest in physics, and last semester probably had several categories of strength, pressure, and work.

1. It is not convincing to use your own feelings, sprinkle rubber scraps on the table, and then lift a corner to make the table oblique, but the rubber scraps do not fall off due to friction, knock on the table, make a sound, and the rubber scraps are separated from the table due to vibration, fall, and are completed.

2. The propagation speed of sound in the air with a moderate temperature of 15 degrees is 340 s, first of all, 1000km is converted into 1000000m, 1000000 340 is about equal to 2941, and then 2941s is converted into hours, and the final result is about hours, and it takes about hours from Beijing to Shanghai (2) The speed of the train is 100km s, the distance is 1000km, 1000 100 = 10, so the train takes 10 hours from Beijing to Shanghai (3) The speed of a jumbo jet is 600 km, the distance is 1000 km, and 1000 600 is about equal to an hour, so it takes about an hour for a jumbo jet to travel from Beijing to Shanghai.

One is solid, one is air.

1. Put a glass of water on the table and observe the water situation when you knock on the table.

2. The sound propagation speed in the air is 340 s, first of all, 1000km is converted into 1000000m, 1000000 340 is about equal to 2941, and then 2941s is converted into hours, and the final result is about hours, and it takes about hours from Beijing to Shanghai (2) The speed of the train is 100km s, the distance is 1000km, 1000 100 = 10, so it takes 10 hours for the train to travel from Beijing to Shanghai (3) The speed of a jumbo jet is 600 km, the distance is 1000 km, and 1000 600 is about equal to an hour, so it takes about an hour for a jumbo jet to travel from Beijing to Shanghai.

Since the propagation velocity of sound in solid-liquid gas is solid, liquid, and gas, the sound you hear first is transmitted by solid, followed by air.

1.Put a glass of water on the table, knock on the table, make a sound, and the water in the cup will vibrate.

2.At room temperature, the sound takes about 49 minutes.

3.Two voices . If there is water in the pipe, then the sound of the water is behind the pipe.

I know that I am too lazy to write so many words...

1. Put a glass of water on the table, knock on the table, and the table makes a sound to see if the water waves vibrate.

2. The speed of sound in the air is 340 meters per second (theoretical value), and the distance is divided by the speed to get the time.

3. The two are the sound propagating in the air and the propagation in the steel pipe, and the speed of propagation in the steel pipe is faster than the speed of propagation in the air, so the sound heard first is in the steel pipe, and the second heard is in the air.

Step up your game! There is a simple way to do junior high school physics, which is to memorize units.

The example questions are understood, and the exercises are completed independently.

Physics in the second semester of the second semester of junior high school is a more complex part of junior high school, including circuit problems, electrical power problems are more complex, and it is almost one of the major questions in the high school entrance examination in various places, and after learning well, it will be a good foundation for high school circuit alternating current.

Electricity and magnetism are also important, as in Oersted's experiment, the right-hand rule must be kept in mind.

You should take good notes, keep the formula theorem in mind in order to use it freely, do not do more questions in the fine, you can do more basic questions at the beginning, and use the parallel series to understand the formula theorem proficiently, and the questions in the middle school entrance examination are not very difficult. You have to have a good mentality, and you will be a little messy at the beginning. As for the other parts of the safe use of electricity or something, there will be no major problems.

Physics in the second year of junior high school is actually very simple, you just need to memorize the concept and understand it, do more similar exercises, you can listen carefully in class, and take notes, digest and absorb the knowledge immediately after class, ask the teacher if you don't understand, and do more extracurricular homework to consolidate knowledge, and do experiments after going home, in order to learn physics well.

1. Read the physics book carefully, preview before class, record the questions that you don't understand, know what to do, and ask a few more questions about the things around you. If you don't know, you can find the answer in the book.

2. When you are in class, listen carefully to the teacher's explanation, so that you can improve one step on the basis of your preview, and review after class to make the questions you don't understand clear.

3.If you really can't do it, you can ask your teachers and classmates.

Junior high school physics: proficient in memorizing formulas, there are few physics formulas, and it is easy to memorize;

Categorize the problems involved in the topic, and see which part of the knowledge the topic should be able to know;

Exercise a certain visual thinking ability, such as: throwing a wooden block on the conveyor belt and imagining the possible movement of the wooden block will help solve the problem;

The use of equivalence thinking can sometimes greatly reduce the difficulty of analysis, such as: wood blocks in water, which can be analyzed assuming the same volume of water in water;

Limit thinking, such as: a certain parameter increases to a large size, qualitative analysis, find out the solution ideas and physical laws;

Unique thinking, some problems, can be qualitatively analyzed first, whether there is a definite one or several situations, if the result is certain, it can be calculated theoretically; If it's mutable, the solved value might be a function or something.

In short, it is necessary to memorize the formula, understand it deeply through practice, and finally integrate it. Goal: Physics formulas are common sense, and after seeing the problem, you can have a general grasp of the physical process and solution ideas without special methods.

Hello: Personally, I think that learning physics well: it is useless to only rely on the back.

It's all about understanding, so that it can be applied.

Hope it helps:

If there is a lack of initiative and always want to avoid studying, then no matter what parents do, they will not be able to help their children improve their grades. It is recommended that you use the following 3 ways to improve your grades: 1. Develop an interest in reading

Interest is the best motivator, like when someone talks about the most annoying class, you have to tell yourself, I love math! Make a mind map of the information you need to read, which will make your thinking clear and easy to remember.

2. Create an environment: Try to keep the home as quiet as possible, so that there is an atmosphere for reading. The future is in your own hands, and the only thing to do is to calm down, bury your head in reading, and live up to the last time of junior high school.

In the second year of junior high school, my memory was often very bad, and I was always distracted by memorizing formulas, which led to very poor grades in various subjects. I stumbled upon a Tesla potential development course that could unlock intelligence, and after reading it, my situation changed. The results of various subjects also began to improve by leaps and bounds.

I believe that my experience should be useful to you, may you also succeed, keep up the good work!

3. Pay attention to rest: ensure 8 hours of sleep every day, don't stay up late at night, relax and rest, so as to improve the efficiency of reading. Before going to bed, be sure to recall what you learned during the day. Reading should be planned, and it is best to make a plan for both the long term and the short term.