How to learn college physics well?

It is very important to learn physics, and we should master the methods of learning physics. The "magic weapon" to learn physics well includes previewing, attending classes, sorting, applying (homework), reviewing and summarizing, etc. A large number of facts show that full preparation before class is the premise of learning physics well; Active and efficient lectures are the key to learning physics well; It is an important way to consolidate, deepen and activate the understanding of physical concepts and transform knowledge into the ability to solve practical problems, thus forming skills. Being good at reviewing, summarizing and summarizing can make the learned knowledge extrapolate; Reading popular science books properly and participating in scientific and technological activities are beneficial supplements to learning physics well; It is the motivation and guarantee to learn physics well to set lofty goals, make full mental preparation and maintain a good learning attitude. Pay attention to learning methods and improve learning ability. Students can start with the following points.

Physical process is the core, so it is necessary to achieve "a picture in hand, all information", that is, write all known and unknown quantities in the corresponding position of the picture. 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.

Students should learn how to solve problems and think strategically. Strategic ideas, such as equation, function method, formula derivation or classification discussion. Many students are not used to letter operation in solving problems of function derivation. If you don't bring the numbers in, they will feel uncomfortable, at a loss, at a loss. They always feel insecure and have shortcomings. But in fact, those calculated physical quantities and formulas contain little information, just like scrapped cars-a pile of scrap iron or just a walking corpse without life and soul. Formulas or functions, as "terminators", are flesh-and-blood and contain great potential and information.

For example:

The advantages of 1 function derivative method in solving problems are: 1. Reduce unnecessary operations, because some engineering quantities can be saved; Second, we can look at the relationship between the required quantity and various variables, such as the positive and negative proportional relationship, and no one matters. ; Third, it is very convenient to check, such as from the perspective of the unit or the method of special value (making a certain amount zero); Fourth, the formula can be recycled, and the result can be obtained by directly bringing in the combination of different values, without "starting all over again and giving up all previous efforts"; Fifth, it is convenient to draw function curves according to increase and decrease, inflection point, extreme value (point) and asymptote. And then analyze the function, even predict the "future or unknown part", and even become a "scientist, scholar".

2 Application steps of the equation idea: Step 1, read the stem and write all the involved quantities, the unknown ones are expressed in letters, and the known ones are written in their corresponding codes. The second step is to analyze the process and solve the problem with the idea of equations. To do a science problem, first analyze the details, scenes and sub-processes involved in the whole process, connect them in series in your mind into a whole picture, imagine the whole process, and draw images (motion diagram, stress diagram,) according to the meaning of the problem. The third step is to write out the known quantities (including symbols and their numerical values) and unknown quantities (symbols), and list as many equations or equations as possible according to each sentence and each subprocess. The fourth step is to study the equation, adopt the strategy of step by step and divide and conquer, and simplify it into an equation with only one unknown number, so that we can find a breakthrough and solve all problems.

Solve the problem. To do a science problem, first analyze the details, scenes and sub-processes involved in the whole process, connect them in series in your mind into a whole picture, imagine the whole process, and draw images (motion diagram, stress diagram,) according to the meaning of the problem. The third step is to write out the known quantities (including symbols and their numerical values) and unknown quantities (symbols), and list as many equations or equations as possible according to each sentence and each subprocess. The fourth step is to study the equation, adopt the strategy of step by step and divide and conquer, and simplify it into an equation with only one unknown number, so that we can find a breakthrough and solve all problems.

How to study efficiently

Mathematics, physics and chemistry:

1 Set typical examples and wrong problem sets. Write down typical examples and mistakes in a big notebook and read them later when reviewing. A tutor keeps asking students to do wrong questions and practice them again and again until they get it right, and their grades are greatly improved.

2 take notes. A good memory is better than a bad writing. During the day, I will roughly record what the teacher said on the manuscript paper. At night, I will sort it out, digest and absorb it, internalize it into my own knowledge, discard the false and keep the true, and record it in my notebook.

3 can independently derive all formulas. Grasping a main line and using basic formulas, we should thoroughly sort out the complicated relationship between various quantities and straighten out the relationship to achieve a perfect and handy degree.

Analyze the process and solve the problem with the idea of equation. To do a physics problem, first analyze the details, scenes and sub-processes involved in the whole process, connect them in series in your mind into a whole picture, imagine the whole process, and draw an image (motion diagram, stress diagram,) according to the meaning of the problem. Then write out known quantities (including symbols and their numerical values) and unknown quantities (symbols), and list the equations that can relate known quantities and unknown quantities as much as possible through the relationship between quantities (according to each sentence and each subprocess). Finally, the equations are studied, and the divide-and-conquer strategy is adopted to transform them into equations with only one unknown number, so that a breakthrough can be found and all problems can be solved.

Second language subjects (English and Chinese):

1 Common word formation and root words (prefixes and suffixes) in English will greatly expand your vocabulary and make your English confident and interesting. Slowly, you will find that English is regular and interesting, and you will gradually fall in love with English.

2 Language points and grammar should be mastered skillfully. Understand the grammatical similarities and differences between English and Chinese, and it will be better to learn both in comparison.

Reading articles, paying attention to vocabulary, expression and punctuation, paying special attention to English word formation, sentence patterns, grammar and tense, can use more brains to achieve the purpose of efficient learning. Over time, you will feel and be interested in English, and you will have the impulse to speak and write, and your desire will generate motivation. From then on, every little makes a mickle, from obscure to clear, and finally you will feel that "people are in dim light."

Watch more film and television works with Chinese and English subtitles. You can learn spoken English, dialogues (retelling the original words), words and tones as much as possible according to the specific situation, and experience American culture and life personally.

5 Try to express-speech and writing. By using the accumulated experience in reading and imitating word formation and sentence patterns, we can easily "talk to ourselves" and realize self-dialogue. With a certain foundation, you can write happily and tell what you see, hear and think freely, such as writing about campus scenery, hometown scenery, parents, brothers and sisters, your own growth experience, teachers and classmates.

Learning can be everywhere, not limited by space and time. When watching TV, you can learn acting skills, classic dialogues, photography skills, the image of a great man, and even make up a small scene. Before going to bed, when talking with people, walking on the street, on campus and on billboards, you can learn in a broad sense anytime and anywhere as long as you carefully observe and think.

Three political and historical sites:

1 Learn to outline the whole book, even the whole subject, and use clues to run through it.

2 Establish a knowledge network diagram, talk about the general knowledge points in the diagram, and look up books if you don't know. You can buy a shorthand manual and keep it in your arms at any time.

3 try to remember. After reading the book for the first time, repeat it as much as possible. After reading the book for the second time, try to recite it again, divide it into several parts, recite it in sections, record it at several key connection points, ask your deskmate for help if you can't remember it, and then connect it in series, which can greatly save the time of reciting.

When doing questions, we should imitate the answers, especially the college entrance examination questions, grasp the scoring points, learn the answering skills and methods, and practice the answering skills according to this method, and we will certainly get a satisfactory score.

A maverick fish: it is good to be beautiful at the age of 20. I'm 30 years old. I think it's good to be young. 40 years old, I think it's good to be an official. It's nice to be rich at 50. It's nice to be carefree at 60. It's good to be 70 years old and still feel sick. It's good to feel alive at 80.

One time can't explain the problem, but frequent behavior shows that bad habits have been formed. "Habits become nature, and good habits are truly excellent." True Excellence lies not in how much experience you have, but in whether you are plastic, as long as you clear your prejudice, arrogance, complacency, irritability and lack of progress.

I study more, take notes, deduce more, draw an outline, draw a frame diagram, build a subject knowledge system, study and think, sum up experience and skills, and summarize and reflect after doing exercises, but science, philosophy and history broaden my horizons.

Television: pay attention to science and technology, laws and regulations, news, finance and economics, production and life,

Learn from successful people, imitate actors' performances, sentences and mature performances, and learn to put yourself in each other's shoes. Film and television is an experience to resolve or resolve the contradiction between time and space.

Movies: Europe and America are inspirational, funny and sci-fi, appreciate the efficient and intelligent western culture and encourage yourself to succeed.

Excellent websites: Youku Youku, pptv, Post-80s, Storm.

Resources:

(1) Education: European and American courses, and appreciate the American teaching style-efficient, humorous, interactive and extensive;

(2) Humanistic society: understanding and understanding social culture-eclectic, brainstorming, overall consideration and mastery;

(3) Science and technology:

(4) movies: genre (function)-science fiction (imagination and innovation), inspirational (never admit defeat and give up, yield),

Suspense (from interlocking and confusing, explore layers of suspense and become smart),

Foreign university courses, documentaries, nature, society, universe, technology.

Be knowledgeable, knowledgeable and versatile. Simple and neat, a journey of a thousand miles begins with a single step, making decisive decisions, wasting years in a boring daze, reading a lot of books inefficiently, and gathering sand into a tower. Bees collect honey,

Teaching can learn from each other's strengths, not be isolated and separated, but be holistic, well-informed and effective.

overall consideration

Reading, erudition, erudition, humor, extensive reading, enrichment,

Keywords side details, spreading branches and leaves,

Overwhelming, eclectic, the balance of victory turned to the situation, unexpectedly, in form

Self-study and study are integrated into one, and fortunes depend on each other.

Combining in-class and out-of-class activities,

The combination of arts and sciences has different functions, just as it is indispensable for fathers to love their mothers.

Combine learning with thinking,

The combination of overall time and piecemeal time, the overall effective planning of time bank, and overall consideration. I spend all my time doing big things that take a long time to complete, and make full use of my spare time to do some unremarkable odd jobs, such as memorizing words, famous sayings, short poems, writing short articles and keeping diaries.

The combination of military and civilian, "once relaxed, the way of civil and military",

Philosophy of science (natural science, humanities),

Combine art and mathematics,