How to read physics in high school, how to read in high school physics

Seize a round of review, and make the basic knowledge points clear in a round of review, and don't be in a hurry and blindly do the questions. On the basis of clarifying the basic concepts, I will do a lot of college entrance examination questions in the second round of review or in the second semester. I'm more of a proponent of doing past papers because they're all reliable.

If you have the time and energy, you can also do this year's UEC questions. Develop good habits, grasp the basic concepts, and practice speed, and you will definitely make great progress in the third year of high school.

Physics is a super basic subject, if the first and second years of high school are stable and steady in the third year of high school, it is OK to do a little bit of questions, if the first and second years of high school do not learn well, then it will be in vain, at this time you either re-learn steadily, do not blindly do the questions, read the book by yourself and learn little by little, this is very time-consuming, if you can't afford this time, or do not have this resistance to go on, I suggest crazy questions, do different knowledge points of the questions, write down the question type and practice, do more even if you don't understand enough to cope with the exam class.

It's best to take one-on-one, do more fixed types of questions, I don't usually listen to physics classes, physics is very poor, the lowest test is a few points, and it is more than 20 points if it is high, I took the college entrance examination more than 90 this year, and the questions in the Tianjin paper are really too simple. . . If you are a physics teacher in Tianjin, you are introduced, very good!!

Be sure to improve the efficiency of your lessons! Follow the teacher. The problem of the day is solved on the same day!

You should grasp the rhythm of learning every day, when you should relax, when you should be nervous. Every day before going to bed, think about whether you have done everything you need to do today. I'm sure you'll be the best at it.

Just take a good look, the key is that the foundation of the first and second years of high school is also the focus of the exam, and the third year of high school is mainly theoretical

Do more incisive questions that involve a wide range of physics knowledge.

Laying a good foundation is the key, preview, review, and be good at summarizing!

Problem: High School Physics Multimeter Readings.

Answer: We need to master the reading requirements of various instruments at the high school level.

Instruments that do not need to be estimated in high school: resistance boxes, vernier calipers.

It is generally considered not to be estimated (and sometimes estimated): mechanical stopwatches, ohmic watches.

In addition to the above instruments, all other instruments need to be estimated. Instruments that need to be estimated are read according to the following rules:

The minimum graduation is "1" (i.e., the graduation value.

is ""1", "", etc.), the instrument is estimated in the next digit;

Instruments with a minimum graduation value of not "1" (i.e., the graduation value is ""2", ", etc.") are estimated in the same digit.

The minimum scale is that its pointer is between 4 and a little to the right, according to the rules above"Instruments with a minimum graduation value of not "1" (i.e., the graduation value is ""2", ", etc.") are estimated in the same digit. "At this time, we are better off. It is also estimated and can be understood as a reading on a 5-point scale.

The scale is generally ten degrees, so it is estimated that the next digit of the scale.

In the same way, all other scales (such as electricity meters) should be read to the next digit of the minimum scale. If it is not tenths, e.g. each index is or.

In this case, we generally use the standard reading.

Vernier calipers are not estimated, and there is estimation in the alignment of the first few lines. The spiral micrometer is to be estimated.

The correct answer is option c.

Note that the requirement is to reach the highest point of the trajectory, which is not point C.

After reaching point C, the object will continue to rise in the vertical direction and rise by another 2r, during this time, the object is in accelerated motion with zero initial velocity in the horizontal direction, and the horizontal external force is still doing work. When the highest point is reached, the horizontal displacement from the c position to the right is 2r.

Half of the APB is A, and the APQ is B (my understanding) A+B=180

Due to the midpoint. Angular apq = 120

Half of the APB = 60

tana = two-and-a-half of the number three.

tanb = minus two points and three vertical changes.

Answer-1: It is possible that there is a deviation in my understanding!

I would like to introduce you to the learning method of Li Xiaopeng, the top student in the college entrance examination, and don't take a try.

First, the fundamental law of learning - clear thinking.

1. Simple learning - focusing on the learning of knowledge points - understanding, memorization, and practice;

2. Systematic learning - induction and summary - skeleton, sorting and enrichment;

Complete learning is a combination of 1 and 2.

2. How to use the fundamental laws to learn:

1. Problems: many knowledge points and a wide range of knowledge;

2. Problem solving process: the process of establishing the connection between various knowledge points;

3. Unable to solve the problem: breakpoint;

4. To learn systematically: there is an overall game of chess in mind;

3. How to Conduct Systematic Learning:

1. Establish a knowledge framework;

2. Fill the skeleton with flesh and blood;

3. Find out the connection between the vertical and horizontal directions of each part.

Fourth, the complete process of systematic learning:

1. Draw a complete knowledge structure diagram;

2. Connect the knowledge points in this diagram with the specific learning content (fill in the flesh);

Transpose this interconnected knowledge system into the brain as a whole.

This is too general ... High school science learning is a word practice, practice more and do fine, and it is OK to summarize the questions you have done and the question type is good. In fact, after so many years of the college entrance examination, except for the finale, the rest of the questions are almost the same as those I have done before. If you get the score that you can do, you won't get low.