Chapter 167 The gap between others and you is too big
This training class started more than half a month ago. Liu Lang did not participate because of too many things. The school and the Education Committee did not pay much attention to it. After all, there are conditions for Liu Lang to join. Besides, Liu Lang's participation in the Olympics is mainly to show off.
The purpose of looking at the "style" of international prodigies is not to win a good ranking. The main team members of this physics competition are those junior students majoring in physics.
Lu Hua is a well-known physicist in the country. Many of the students he has taught over the years have become physicists. With his knowledge, there is no problem in teaching in well-known foreign universities. As for teaching these fifteen or sixteen-year-old kids in front of him,
Kids, that's just like playing.
Of course, as a world-wide physics competition, most of the test questions are weird and weird questions. In addition to students having a solid foundation, the most important thing is to do more questions and master some rules. For this purpose, the country specially passed the Ministry of Foreign Affairs
We have collected many past quiz questions from abroad. Only by analyzing and researching these questions can we get twice the result with half the effort.
"Everyone try this question!"
Professor Lu Hua wrote a question on the blackboard. The question included friction force, gravity, support force, spring tension and traction force. If it were a single force, it would be very simple, but when added together, each force has a relationship with other forces.
, it became a motion analysis of a complex force-bearing system. All the students frowned and kept thinking, and kept writing on the paper with pens.
Liu Lang glanced at it and then curled his lips.
"This is too simple!"
This question involves Newton's laws, as well as relevant knowledge of tension, friction and spring coefficients. It is a bit complicated, but it is still high school physics in essence. The difficulty is only to carefully separate each force and then perform vector superposition. The process will be
It's very complicated and you can get it wrong if you're not careful.
However, for Liu Lang, whose brain is comparable to a computer, in his eyes, the vectors generated by all forces are more obvious than the lice on a bald man's head. It is simply a question that can be answered with a little thought. This is also
Is it a problem?
Well, Liu Lang came up with the final result in just over twenty seconds. He secretly looked at the students behind him, either frowning or shaking his head. Only those students in the junior class had written on the paper.
Writing quickly, it is obvious that this question is not too difficult for these students in the juvenile class.
Five minutes later, Professor Lu Hua came down from the podium and briefly looked at the students' answers.
"Well, the students in the junior class are still good at learning. In comparison, these students who were transferred from the cities below are a little worse!"
Professor Lu thought to himself that this was normal. After all, the junior class had experienced university studies and their height was much higher than those students. Even if they had the same high school knowledge, they would have a more solid grasp of it.
"Liu Lang, have you done it?"
Professor Lu came to Liu Lang after reading all the students' answers.
"This is the answer!"
Other people's papers were filled with dense formulas and calculations, but Liu Lang's paper only had one number.
"What?"
Professor Lu was stunned. The answer was absolutely correct!
"Liu Lang, how did you calculate it?"
Professor Lu asked immediately.
"I just thought about it for a while and figured it out! This is all high school knowledge, it's not difficult!"
Liu Lang answered casually.
"Oh, I forgot. Liu Lang's intelligence is outstanding. He was able to take the top prize in the country. He must have learned very solid knowledge in high school. This question is not difficult. He can do it without any problem."
Professor Lu thought to himself and didn't ask any more questions.
"Liu Lang, your answer is correct, but you can't write it like this if you want to participate in the competition. You have to write down the analysis process to be completely correct."
Lu Hua touched Liu Lang's head and said.
"Okay, let me tell you about this question!"
Lu Hua explained every knowledge point of this question on the blackboard. He explained it in a simple and profound way. His lecturing skills alone were much higher than those of ordinary physics teachers.
"Okay, let's do this question again!"
Because the time for this training was very tight, Professor Lu Hua practiced by questions, trying to fully explain the question types he saw as quickly as possible.
This question is another type of question, it is about the action of electric charges. Two positive charges and four electrons move in a circle. It is much more difficult than the previous question.
This question is also easy for Liu Lang. The difficulty lies in the forces of different electric fields and the changing circumferential speed. He came up with the answer in less than twenty seconds. Liu Lang simply wrote it on the paper.
It's done in just a few strokes.
"Liu Lang, have you finished writing?"
This time Lu Hua stared at Liu Lang and immediately asked after he put down his pen after writing a few words.
"Professor Lu, look at it!"
Liu Lang handed the note to the other party.
There are only four formulas on the paper, and the answer is given directly. The answer is correct, and the four formulas are also the knowledge points in the question.
"this………!"
Lu Hua glanced at Liu Lang and was filled with emotion: This Liu Lang's head is really incomparable to others. Even the students in the junior class are far behind him. In less than a minute, he
I figured out this question, and it is correct. But the process does not look like the answers written by students, but more like my lesson preparation notes. The school said that letting him participate in the competition is just a formality. I think as long as he is serious
Suddenly, other students can't compare to him!
At this time, Lu Hua was also quite disappointed. If Liu Lang went to the physics department to study with him, the country would probably have a world-renowned physicist in the future. What a pity! What a pity.
Lu Hua was right. Liu Lang's IQ was really incredible. As long as the knowledge he had learned was changed, it would be useless in his eyes. Of course, if there was knowledge he didn't know in the question, he would answer the same question.
Not coming up.
The class lasted for one and a half hours. Professor Lu Hua asked seven questions. Each question was of a different type and involved many aspects of knowledge such as buoyancy and electricity. Only two students in the junior class answered them all correctly.
Of course, this did not include Liu Lang, because Lu Hua secretly calculated it for Liu Lang, and it only took him two minutes in total to write out the answers to these six questions.
Correct, correct, all correct. Although the difficulty of these questions is only medium, Lu Hua is convinced that even more difficult questions, as long as they do not exceed the scope of high school physics, will be "clouds" in Liu Lang's eyes.
Liu Lang's "toughness" made Professor Lu feel helpless. Liu Lang should not come to participate in the training of the juvenile class, but should go to the youth class.
"No, I have to report it to my superiors when I get back. Liu Lang is just wasting his time in the juvenile class!"
"Okay, that's all for today's class. Let's go and have a rest. There is another class in the afternoon, so be sure to come on time!"
Hearing Professor Lu's reminder that get out of class was over, everyone let out a sigh of relief, and then leaned there rubbing their heads. Although this was not physical labor, the high-intensity thinking made them, students, feel extremely tired. It's better than half a day's work
Tired, but what they found incomprehensible was Liu Lang's performance. It took him only half a minute to complete the question. The students who doubted him at the beginning are now convinced. His IQ is just as good as yours.
Ten streets, you can’t accept it!
The students left the classroom in a huff. Liu Lang did not leave, but raised his head and said to Professor Lu: "Professor Lu, can you show me the most difficult question you have?"
"Oh? Liu Lang, what are you going to do?"
Lu Hua asked while tidying up.
"These questions are too easy. Let me see how difficult the most difficult question is. If it is also very easy, I won't come tomorrow. I still have a lot of classes to attend!"
"Haha, I was about to tell the superiors about you, but you brought it up first. Well, these are the questions our country has collected from foreign junior physics competitions in recent years. I think these questions are
The hardest thing is, take a look at it, and if you think it’s okay, you won’t come to my class tomorrow.”
Lu Hua took out a paper, drew a few strokes on it and handed it to Liu Lang.