Xu You was gearing up and ready to face the test questions.

Although it was just a small test, it was Xu You's first battle after experiencing the state of deep learning.

Xu You really wanted to see what results he had achieved after studying in one class.

After receiving the test paper, Xu You took a general look at it.

Sure enough, the question types were basically the same as those in the monthly exam just now.

Even some common mistakes in the monthly exam have been carefully integrated into this quiz.

Xu You maintained his deep learning state and started answering questions at full speed.

At this time, the get out of class bell rang.

Some students got up and walked to the bathroom.

Some students did not care about what the physics teacher said and went to the playground to relax.

Although there are students flowing around, the classroom overall remains relatively quiet.

After all, it is an exam after all, and you still have to have a minimum of respect.

Except for a few students who work hard at writing.

Most students are still confused by the questions in the quiz.

Everyone may be looking at the previous monthly exam papers and looking for similarities.

Or check with your deskmate to see if they have finished the questions.

But more often than not, it was just looking at each other at the same table.

"This question can be directly compared by using the law of uniformly variable linear motion."

"For dynamic analysis of common point force balance, just draw a vector triangle."

"This is not exactly the same question type as the monthly exam questions, it's just a different number."

In the state of deep learning, Xu You's answer results are surprisingly good.

The previous questions actually encountered little resistance.

At most, it is just a question that requires calculation, and it takes a little time to calculate.

What Xu You didn't notice was...

My exaggerated state has been seen by my deskmate Dong Chao.

"Xu You...is this a sign of learning from demons?"

From Dong Chao's perspective, Xu You seemed to be driving at double speed.

Without even reading the question, I quickly wrote the answer.

It's completely different from Xu You in Dong Chao's impression.

Dong Chao's usual performance is worse than Xu You's.

But the speed of completing the questions is faster than Xu You.

Xu You is a well-known representative in the class who studies very hard, but his grades are not that outstanding.

In terms of answering speed, it is also on the slow side.

Dong Chao even wondered whether Xu You was writing answers randomly.

But when Dong Chao saw the clear process on Xu You's scroll.

I don’t think it was written casually.

Just over ten minutes have passed.

Xu You solved the last big question.

This big question is obviously more difficult than the previous questions.

Although the question types are similar to the monthly exam questions, there are some changes in them.

This is also the reason why the physics teacher set the passing mark for this quiz at 80 points.

It is understandable that you will lose points for this last big question.

But for other questions, there is really no reason to lose points.

This is a conveyor belt problem and a difficulty in the mechanics part.

This kind of question compares and tests students' independent analysis ability.

Even if you master the answering skills, you still need to accurately analyze and understand the questions in order to get full marks.

"First compare the kinetic friction factor and the tangent of the inclination angle of the incline to determine the relationship between the sliding friction force and the downward component of gravity along the incline, thereby determining the acceleration direction of the object."

Xu You did not feel at a loss because of the change in the difficulty of the questions.

Instead, he immediately clarified his ideas and determined the starting point for the topic.

This is also an idea mentioned by the physics teacher in the previous class.

In the deep learning state just now, Xu You has completely understood this idea and kept it in mind.

Soon, Xu You determined the direction of the object's acceleration and calculated the magnitude of the object's acceleration based on Newton's second law.

The overall topic began to become clear.

"This is what it feels like!"

Although it is just the beginning, Xu You has already found an excellent feeling for solving problems.

The acceleration value calculated through mechanical knowledge is then combined into the kinematics formula.

Xu You quickly solved the problem. The first question was the length of the scratches on the conveyor belt.

This first question is not difficult to ask.

But if it can be solved skillfully, it at least shows that the student has a good grasp of the basics of movement and force.

You know, just the big questions about motion and force can already stump most of the students.

Xu You was not proud, but immediately threw himself into the second question.

Find the speed of the small object when it leaves the conveyor belt.

To put it simply, this question is about the movement of a block that first decelerates downward along the conveyor belt and then accelerates in the opposite direction.

As long as the displacement and acceleration are determined, the speed of the small object when leaving the conveyor belt can be calculated through the formula.

Based on the results of the first question, Xu You first calculated the displacement and acceleration of the second segment of motion.

Just when Xu You wanted to continue with the formula.

Suddenly I realized a problem.

"No, there is a trap in this question!"

That is, the terminal speed of the small object cannot exceed the speed of the conveyor belt.

If you haven't noticed this problem.

It is very likely that fatal mistakes will be made, resulting in loss of points on the question.

This kind of mistake is the same as the speed of a car reversing after braking. It is very low-level, but it is easy to make mistakes.

The main reason is that students are not proficient in solving problems and do not understand thoroughly enough.

In about twenty minutes, Xu You had finished answering all the questions.

Because Xu You started answering questions after class, there is still half an hour before the end of the exam.

Seeing that there was still plenty of time, Xu You took a few more minutes to check the roll from beginning to end.

After confirming that all the answers are completely correct.

Xu You decided to step forward and hand in the paper.

Dong Chao, his deskmate, was copying Xu You's answers. Before he had finished copying half of the answers, Xu You turned in the paper.

"wait……"

Dong Chao wanted to reach out to retain him, but it was too late.

At this time, Lu Zhiyao also finished answering the paper and stood up to hand it in.

In the usual quizzes, Lu Zhiyao was always the first to hand in the paper.

Not for anything else, just to hand in the paper early and do other questions early.

It was just a small test, so naturally Lu Zhiyao would not deign to take it.

Just when Lu Zhiyao got up to hand in the paper.

But she found a figure already in front of her.

Lu Zhiyao frowned slightly, looked over carefully, and found that this classmate was Xu You.

Lu Zhiyao had not spoken a few words to Xu You, and only had a basic understanding of Xu You.

Seeing that it was Xu You, Lu Zhiyao was immediately relieved.

Xu You is the kind of person who works hard but learns slowly.

Although Xu You's grades are relatively high in the class.

But Xu You would definitely not be able to finish this roll of paper in such a fast time.

There must be something wrong and I want to ask the teacher.

Naturally, Lu Zhiyao would not do such boring things as competing with other students on how fast they could answer questions in a quiz.

But if there is someone in the class suddenly, he can answer faster than himself.
Chapter completed!