Chapter Ninety-Nine: The Pit of Experimental Questions

Looking and stopping along the way, Wu Bin finally found Cui Shaodong by the windowsill on the second floor.

"Well, here's one." Wu Bin pulled out a green arrow and handed it to Cui Shaodong.

"Don't you understand the basic truth that the people who ran out want to calm down by themselves?"

Cui Shaodong said that although he said so, he still took the gum.

"Just assume that I like to be nosy." Wu Bin also peeled off a green arrow and threw it into his mouth.

So the two of them just looked out at the playground and chewed gum.

"Didn't you come to comfort me, but to say something." Cui Shaodong, who was about to chew the chewing gum, finally couldn't help but speak first.

"Do you want to listen, it's okay, next time you take the test, don't you talk about anything like this on behalf of an exam?" Wu Bin smiled.

"Alas......" Cui Shaodong sighed again after hearing this, and said, "I didn't learn how I could fold on a mechanics problem." ”

"Question seven?"

"More than that." Cui Shaodong shook his head.

Wu Bin didn't speak.

"What about you?" Cui Shaodong looked at Wu Bin.

"Didn't bother me." Wu Bin replied very honestly.

"Awesome." Cui Shaodong said and tried to blow a bubble with chewing gum, but failed.

"Maybe I'm not working hard enough, not working as hard as you do."

"Actually, I don't work very hard, I just like it, physics is interesting, isn't it?" Wu Bin said with a smile.

"Interesting?" Cui Shaodong's expression was a little confused, "Maybe......"

Then Cui Shaodong was silent for a long time before saying, "Let's go, go back to dinner." ”

When they returned to the cafeteria, everyone didn't say much when they saw Cui Shaodong returning, but continued to eat with their heads down, but in Wu Bin's opinion, it was more like mashing rice, then stirring it, and repeating this action.

"Where's Li Yan?" Wei Tianshuo suddenly grabbed Wu Bin and asked quietly.

Wu Bin looked dazed, shook his head and said, "I didn't see him." ”

"It's strange, he just said that he was going to go with you to find Cui Shaodong."

After saying this, Wei Tianshuo suddenly had a feeling of sudden realization, and Wu Bin was the same, so the two tacitly continued to eat.

Finally, when it was time to gather, Li Yan ran back, and said with a smile that No. 1 Middle School was too big, and he got lost after chasing after him.

At this time, naturally no one would worry about whether Li Yan's words were true, but silently got on the bus back to the hotel.

The contestants who returned to the hotel originally wanted to go back to their rooms for a good night's sleep immediately, but Wei Tianshuo reminded them that they had to go to the banquet hall to draw numbers and decide on the grouping of tomorrow's experimental exam.

Staying in the banquet hall and sitting in a row, Li Yan, who probably couldn't stand the atmosphere in the team, suddenly patted Wu Bin and said, "Tomorrow's experimental exam, Wu Shen is afraid that he will be outstanding." ”

The others also nodded after listening to Li Yan's words, and when they were in the training class, they had learned how good Wu Bin was at doing experimental questions, and the accuracy was simply amazing.

"Li Shen is polite, your level is not bad."

At this time, Zhao Kehan suddenly said: "Speaking of which, it is said that the competition is the winner of the theoretical exam, but I think the experimental questions are the key to pulling points, there are too many small details, and if you are not careful, 3 or 4 points will be gone, like Wu Shen will not make this kind of mistake." ”

"I said, the exam is tomorrow, is it really okay for me to be so milky now?" Wu Bin looked helpless.

"After all, your level of lab questions is recognized as good." Jiang Hang, who was in a state of "meditation" all the way, also suddenly opened his mouth.

"Yes, the strong are not afraid of milk." Li Yan nodded, and then said: "And what Zhao Shen said is also right, the experimental questions seem to give points, but there are also a lot of losses on it, I have heard the jokes of the previous sessions, and I will share it with you." ”

"But there's no guarantee of authenticity." Li Yan paused after finishing speaking, and began to speak.

"The year before last, there was an experiment called "Measuring the Curie Point of Unknown Materials".

Wu Bin listened and nodded, some materials will undergo phase transformation and lose ferromagnetism when they rise to a certain temperature, and this temperature will be called the Curie point of the material, which can be said to be a test point that is often used to ask questions.

"The competition is, the members of the conference are quite 'intimate~'" Li Yan dragged a long tone here, "There are quite a lot of equipment given, including a basin of water and an alcohol lamp, you can choose by yourself." ”

Hearing Li Yan emphasize this, Wu Bin could almost imagine where the pit was.

"The duration of the experiment is two hours, so after reading the test questions, the students set up the experimental device and began to boil the water, but after the water boiled completely, the students who did the experiment were dumbfounded, because the Curie point of the material given in the experiment was greater than 100 degrees Celsius, so even if you boiled the water dry, you would not be able to find its Curie point!"

Li Yan shook his head when he said this, "The correct experimental method should be to use an alcohol lamp to bake the material, and quickly put it into the insulating device of "Ice Melting Heat" when its phase change occurs, and calculate its Curie point ...... according to its specific heat capacity."

"So that alcohol lamp and basin are just used to mislead students, right?" Zhao Kehan couldn't help but get goosebumps behind his back, if he made the wrong choice, then the remaining time would definitely not be enough to do the second experiment.

"Yes, that's right, so everyone should take caution." Li Yan nodded seriously. 2k reading web