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The official examination papers are mainly based on the scoring points! You said a lot, probably only one score point was satisfied, and of course the score was low. As long as you answer the knowledge points concisely, there is no need to explain so much!
Also, the language should be precise, for example, when you talk about inertia, you can only say: because of inertia. And it can't be said as:
Due to the force of inertia. Special attention should be paid to this type of issue.
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1.Write first"Solution"The word.
2.Then state the known conditions.
3.Write your solution process, and there must be original formulas, reasoning formulas in the process.
4.The results should be unitary, and the final question should be answered.
In fact, physical reasoning is very simple, the important thing is to describe the process, nothing to do, as long as you master the pattern, you will be fine.
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I guess there's a problem or a loophole in your process.
The process is as follows.
1.Specify the known conditions.
2.Write down what you want.
3.Write"Solution"The word.
4.Write your answer process.
5.Write an answer.
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1) Use more "technical terms". Memorize more of these terms from the book;
2) Be organized, it's best to be like me, make a list, hehe;
3) Write the main points of each article first, and then explain it; Try not to write a bunch of explanations and conclude at the end, and the conclusion should be written first;
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Don't be nervous during the exam, relax and adjust your mentality, review the questions, focus on the center to grasp the key points to answer, and don't answer randomly, I believe that you will definitely do well in the exam.
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---I'm a love chocolate Sakura--
I used to be unconvinced, and memorized the whole book and the whole monitoring, but the result was still unsatisfactory, and I had the heart to give up, but now after listening to everyone's analysis, I will do my best to get rid of the bad habit of "wordy", and say more concise and clear words, no matter what, I thank you very much, I will try it!!
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It should be logical and simple.
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How to learn junior high school physics to get a high score is as follows:
1.Pay attention to the main points in class.
In order to listen to the lecture well, we should be good at grasping the main points of the class, which mainly refers to the key points and the difficult aspects. During class, we should consciously pay attention to the main content of the teacher's lecture.
When the teacher is lecturing, he always focuses on highlighting the key points, going to important places, or slowing down, emphasizing or writing an outline, sorting out the clues or analyzing them in detail, and explaining them carefully, etc., and we should cultivate ourselves to be good at grasping these.
The difficult points may vary from person to person, which requires us to be aware of them when previewing, and pay attention to them when the time comes, and listen carefully. In short, we must be able to "listen" and "hear the way".
2.Pay attention to physical processes and attach importance to auxiliary mapping.
It is necessary to have a clear understanding of the physical process, whether it is a theoretical process or a practical process, and there will inevitably be hidden dangers in solving problems if the physical process is not clear.
Regardless of the difficulty of the problem, you should try to draw a picture, some can draw a sketch, some need to draw an accurate map, and use a compass, triangle, protractor, etc., to show the geometric relationship.
Drawing can defeat the oak and change the abstract thinking into figurative thinking, and grasp the co-ordination process more accurately. With the graph, state analysis can be done and dynamic analysis, state analysis is fixed, dead, and intermittent, while dynamic analysis is alive and continuous.
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There are two main aspects of difficulty in studying physics: one is that I don't know where to start, and the other is that I don't know how to do some difficult problems. Here are two ways to learn physics:
Conceptual book "learning method.
One of the most important things to learn physics well is to have a clear concept. Concepts in physics are very essential, very central parts. Don't think that you can grasp the concepts of physics clearly by reading a book or doing some problems.
Whether you have a clear and deep understanding of the concept has a direct impact on the level of knowledge you have about flexible topics. The questions that you don't know how to do or the questions you do wrong are often unclear and unfamiliar with the basic concepts. Here's how:
Memorizing physics concepts in a small notebook does not have to be copied from a textbook, but can be combined with memorization tips. Such as:
Two forces balance: two forces act on the same thing, and the equivalent is reversed in a straight line.
The object is subjected to a balanced force and does not change its state of motion.
Friction: The object rolls or slides along the surface, and the surface is not rubbed.
When applied to the pressure surface roughness, it can increase the beneficial friction.
Harmful friction should be reduced, lubricated and decompressed.
Force measurement arm method: a certain point, two draw lines, point lines, vertical lines.
The law of reflection of light: The law of reflection has a lot of content, and only the two corners of each of the three lines are written.
Incident reflection and normal, as well as the incident reflection angle.
The three-line coplanar method is centered, and the inverse two lines are on both sides.
The two corners are equal and have an order, and they cannot be reversed at will.
Convex lens imaging rules: one double focal length is divided into virtual and real, and two times the focal length is divided into size.
The near image of the object becomes larger, and the distant image of the object becomes smaller.
These memorization tips are easy to help understand physics concepts and applications.
Question type classification method.
Many students reported that they had done a lot of physics problems, but it was difficult to draw inferences. The next time I encounter a problem, I won't do it again if it changes slightly. This is mainly because:
Not enough work has been done to summarize and summarize. In learning physics, we should pay attention to classifying the question types, putting the same type of questions together, and summarizing the problem solving rules of the same question type. Then analyze some specific problems according to the type to find the best way to solve them.
Question type classification requires a good familiarity with each knowledge point. Many students only stay on the superficial understanding of the topic when classifying, and do not analyze its essence, which is not representative. This does not serve as a good guide.
When doing this work, pay attention to the types of questions summarized to meet the requirements of the syllabus, and also pay attention to the order from easy to difficult. The question type should be representative and should not be too many and mixed.
Proper use of question classification for review will change the traditional review method, improve your interest in learning, and make physics learning more effective with half the effort.
In addition, it is recommended to read some extracurricular popular books on physics, which is very helpful for learning abstract physics.
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What methods should be used to achieve twice the result with half the effort when learning junior high school physics?
1.Pay attention. When learning physics, we should first pay attention to observing the physical phenomena given by the teacher and the textbook, such as the questions raised in the textbook, the ** given, the experiments and the teacher's demonstration experiments.
The main aspects of observation are: the conditions under which physical phenomena or facts arise, the forms in which they manifest themselves, such as motion, deformation, temperature changes, results, etc. Secondly, we should consciously cultivate our habits and interests in observing physical phenomena in our lives.
2.It is necessary to pay attention to learning and summarizing the problem-solving methods of physics to help oneself gradually improve one's thinking ability. There is no special chapter in physics textbooks that introduces the learning methods of physics.
However, it can be said that the whole textbook is about the problem solving method of physics. This is because when textbooks explain physical concepts, laws, and formulas, they follow the steps of physics to solve problems. That is, questions are generally raised first, and then carried out through experimental research, observation, analytical reasoning, generalization and other steps.
Therefore, in the whole process of physics learning, while learning the problem-solving steps of the textbook, you should also pay attention to thinking to see if you can come up with experiments, methods and steps to solve the problem that are different from those in the textbook. In this way, while learning to inherit the thinking achievements of predecessors, they can also exercise and improve their ability to solve problems and innovate ability.
3.Pay attention to the method of memorization. Although learning junior high school physics requires attention to cultivating thinking ability, it is also necessary to pay attention to memory, and to memorize on the basis of understanding, rather than mechanical memory.
When memorizing, we should pay attention to finding patterns and characteristics, and be accurate. It is necessary to accurately memorize the various definitions, the literal expressions of the laws, and the "units" of various physical quantities. This is conducive to helping us form the ability to express physical words and language.
One of the biggest differences between physical formulas and mathematical formulas is that each factor in the formula has a "unit". Therefore, when memorizing the expressions of physical formulas, it is important to remember the physical units of each factor.
4.It is necessary to pay attention to experimentation and do as many experiments as possible. If you can't do experiments, you can't say that you have learned physics well.
Experimental hands-on ability mainly refers to hands-on ability such as observation, operation and production. When you start learning physics, you can pay attention to how the teacher does all kinds of demonstration experiments, such as the steps of the experiment, what to do first, what to do later, and the method of the experiment. When doing experiments, carefully experiment and practice according to the experimental steps and methods required by the teacher.
We should actively find ways to do the exploratory experiments and small productions on learning physical concepts and laws given by teachers and textbooks. This is very beneficial for enhancing hands-on ability. In addition, you can design your own experiments.
For example, if you want to design the experimental procedures and methods implicit in the illustrations and exercises in the textbook, you can design the experimental procedures and methods by yourself and conduct experiments. This develops your ability to innovate and solve problems hands-on.
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Hello, physics is closely related to life, and there are many phenomena in life that can be explained by physical knowledge, for example, why people can be blindfolded to judge who is speaking, which involves the "timbre" in physics; Why is there a liquid in the gas tank in the house instead of gas, this involves the "liquefaction" in physicsPhysics is interesting.
But physics is a science, not a liberal arts, and it doesn't need to be memorized. Since it's science, it's important to understand. There are many laws, laws, and so on in physics, which need to be understood and thoroughly understood.
At the same time, you should also do more questions, don't do them blindly, pay attention to the conditions given by the questions, and then you choose what physics knowledge to use to solve them.
In addition, physics is also an experimental course, and there are many interesting experiments in physics. For example, if you put a magnifying glass between the window and the wall during the day, and the magnifying glass is close to the wall, you will find that there is an image of an upside-down window on the wall, which involves the experiment of "convex lens imaging". For experiments, you should pay attention to observe the phenomena produced in the experiments, and be good at using physics knowledge to analyze why.
Another important point is that you must listen carefully to the teacher's explanation in class, and ask the teacher more if you don't understand.
Finally, I hope you are interested in physics, and I wish you to learn physics well.
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The study of physics in the second year of junior high school is particularly important, mainly in electricity. In addition to listening carefully in class, we must also master good learning methods: 1. Read carefully and ask more questions, and cultivate self-learning ability.
According to the content of the textbook, read and understand at the same time. Summarize and organize in a timely manner after class. Ask more questions, ask yourself a few more whys.
2. Pay attention to experiments, cultivate observation and ability. Multi-experimental.
3. Cultivate problem-solving skills in connection with reality.
4. Do more typical example questions, do a good job of questions, and understand the type of questions (what the teacher said to me in private!) )
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In the second year of junior high school, students will study acoustics, optics and mechanics.
Acoustics and optics are mainly about figuring out those basic physical terms, and the concepts and definitions should be drawn in the book and memorized.
Mechanics is mainly for the first three foundations, of which levers and pulleys are the most important, levers are the first to figure out the fulcrum and power arm, resistance arm, pulley to figure out the direction of force, stressed objects and several ropes to be stressed.
The pulley can be analyzed by the integral method and the local method.
It's easy at first. The most important thing is to cultivate your own interests, find problems in life, and use physics knowledge to solve them. Take more notes during class and listen carefully to the teacher's lesson.
After the exam, you should find the root cause of your mistakes and solve them in time. In this way, it can be improved.
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I also studied physics in the second year of junior high school, and the main thing is to understand that the first semester of the second semester of junior high school is not difficult, just memorize it, and in the second semester, I will learn density and force, and I will have to think and understand. Just looking at the topic may not be able to understand clearly, look at the individual (if you understand well) (if you can't understand it, analyze the conditions of the topic in an orderly manner, the idea will be clear, and remember the formula Try to put the conditions on the formula, such as learning the density formula: density = mass volume If the topic asks you to find the density, you will mainly look for the conditions about mass and volume Grasp the key point Of course, there may be other situations to find the density later, and you can also use the force to gradually combine the kind.
This is my feeling You may have different feelings when you learn Mainly serious If you really want to learn well, you will definitely be able to learn gradually You will naturally understand if you listen carefully in each class In addition, it is recommended that you find a better material to do It helps you understand o( o
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1. Read carefully and ask more questions, and cultivate self-learning ability. According to the content of the textbook, read and understand at the same time. Summarize and organize in a timely manner after class. Ask more questions, ask yourself a few more whys.
2. Pay attention to experiments, cultivate observation and ability. Multi-experimental.
3. Cultivate problem-solving skills in connection with reality.
4. Do more typical example questions, do a good job of questions, and understand the question type.
pwd=1234 Extraction code: 1234 Introduction: Junior high school physics high-quality materials**, suitable for teachers at all stages, daily tutoring of students, sprint for the high school entrance examination, and skill improvement learning.
1. Try to think that students are very ignorant and have a low ability to acquire knowledge. >>>More
Junior high school physics is relatively simple, as long as you understand the formulas and are familiar with the experiments. >>>More
First of all, we must know some basic definitions, such as mass, weight, buoyancy, conservation of energy, etc., and then we must memorize some basic formulas and conversion formulas, and then establish physical models from the perspective of life, so that the combination of the three can overcome the difficulties of physical learning.
To put it simply, just one word is enough: hard work.
To put it more complicated, that is, how to practice hard? >>>More