Please close your eyes and think about some folk proverbs we will encounter in our daily life. Have you thought of it? I got it! I wonder if you have heard of it? What you can't pick is the moon in the mirror, and what you can't catch is the flower in the water. This sentence contains a wealth of physical knowledge. Oh, did you find it? By the way, it is the familiar principle of flat mirror imaging. If you haven't heard of it, I'll tell you some familiar ones. Like what? People are United, Mount Tai moves? I think everyone has heard of it? Can you find out your physical condition? Hiding place? Really? It is a member of the mechanics family! Did you find the smart one? It means that if the components are in the same direction, the resultant force is equal to the sum of the components. Simple, right? This kind? Hide and seek? Isn't it interesting to learn English? I want to send a hard-to-find one out with you? Fight? Are you ready? My question is? Second time around? Has anyone found that when the distance between molecules is large (more than a few hundred angstroms), the attraction between molecules is very small, almost zero. So second time around can't? I hid it secretly and found it for you. All right, I give up. I will beat you next time! ?
Perhaps, it is not that physics is boring, but that there are misunderstandings in our learning methods. Sometimes it's better to learn physics in another way, such as integrating physics into proverbs, which is fun. Let's stop at this stop first. Remember? Hide and seek? This interesting game. Finally, I leave you with another question, that is? Isn't Pig alone in the mirror? Let me know when you find it! I look forward to that day!
Special feeling second stop
At this stop, we will visit a member of the electric home elevator. I wonder if you will have a special feeling when you take the elevator? Want to know why this phenomenon occurs? If you want, just follow me to find the answer!
After several days of hard work, I finally found the answer. What does it matter? Overweight and weightlessness? Related. So what? Overweight and weightlessness? What does this mean? Actually, these are two physical phenomena. Everything on the earth is influenced by gravity. If gravity is strong, physics will overcome gravity and accelerate its upward movement. Then it will be overweight. If an object accelerates downward along gravity, it will show weightlessness. Isn't this amazing? Elevator is only a member of the electrical family, which means there are more mysteries waiting for you to explore in detail!
When you encounter problems in your life, you might as well ask why. I hope you can all have questions in your mind and solve this mystery yourself! The journey of this station is coming to an end, so let's stick to the convention. Come on, follow in my footsteps. Oh, I want to ask you a question. Why do microwave ovens heat evenly and have high thermal efficiency? Let's use our brains to find the answers in life! Looking forward to your satisfactory answer! Now please take your hearts and explore the third stop with me!
The third stop of the egg world
The third stop is here! Students, are you confused? Eggs! What does it have to do with physics? Why not think about how to make eggs first? I will introduce you to two methods of boiling eggs and their physical knowledge. First, hot spring eggs: the solidification temperature of egg white is about 70℃, while the solidification temperature of egg yolk is only about 60℃, so when we cook eggs, we can cook a strange egg hot spring egg by controlling the water temperature between 60℃ and 70℃: the egg yolk has solidified, but the egg white is still a crystal clear liquid! Very beautiful! Boiled eggs: When the water boils, the egg yolk is still in liquid state due to insufficient heating because the egg white is in the outer layer and cooked and solidified first, and because the egg white is a poor conductor of heat. If we take out the eggs at this time, they will be boiled into what we call dripping eggs. Isn't it interesting? Try it at home and see the effect. There is a trick to boiling eggs, so does eggs have a game? Is it also related to physics? By the way, there is. One: Turn the egg: Turn a raw egg and a cooked egg on the table at the same speed, and you will find that the raw egg stops soon, while the cooked egg takes longer to turn. The reason is that when the raw egg rotates, the egg white and yolk will hinder the rotation of the eggshell due to inertia. Second: I think everyone is familiar with the tumbler, right? Do you know how to do it? Knock a small hole at one end of the raw egg, slowly throw out the egg white and yolk, dry it, put a proper amount of sand in it, drop some glue to fix the sand, draw a face on the outside of the eggshell and make a tumbler. I hope each of us can be a tumbler and never be knocked down on the road of exploring physics and life!
This trip is coming to an end. Do you remember those three places? Let's recall it together. The first time was in the proverb kingdom, the second time was in the home of electrical appliances, and then we went to the world of eggs. Isn't it interesting? Do you want to continue exploring? Then come on! ? Paying attention everywhere is learning. ? Study hard, be good at observation and be diligent in thinking. I hope the guide at the next stop is you. Looking forward to this day!
I didn't expect to leave a year earlier. I'm not prepared at all Many times. Things are always sudden. You don't have time to prepare.
I never thought that the physics teacher would walk so fast. I thought I was leaving after graduation. If I leave after graduation, I think I will accept it calmly, because there was no reason to stay at that time. Because of graduation. They are all ready to leave. Now it's one year ahead of schedule.
When the math teacher told us this, I couldn't help crying. I am not a sad person. But I like crying. The math teacher said that the physics teacher was due to poor health and the pressure of senior three.
Too much pressure? I don't believe it, because she told us that there is nothing to be afraid of in the third grade, but time is tight. I have to take what the math teacher said as a joke, a modest joke, but I know that she won't inform us until the math teacher arrives at the end.
However, when the physics class comes again, it is really indescribable to feel that the person standing on the podium is no longer the old teacher Li. All illusions are shattered. You can only accept the facts. I have to admit. The new physics teacher is very nice, but I don't think I particularly like her. I like my former physics teacher better for no reason.
I remember, once, he was a referee for a few days, and when he came back, he became a giant panda. All the students in our class are laughing. He said humorously, I became quasimodo. Then the students in our class smiled again, only to see him say: although he is ugly, he is kind-hearted! ! Hey hey!
I remember when I go to the office to deliver my homework, I always walk very lightly, which often scares the physics exam. Every time, the physics teacher sighs. Another time, because of a lot of homework, another classmate and I went to the office to deliver homework, so we went into battle lightly. The physics teacher sighed at the history teacher: it's all light. Well, she's at the door, too. Then my classmates and I left with a smile, which was unexpected.
I remember that the physics teacher studied the books and thoughts of Lu Xun and others very much, and often linked them with physics topics. We are all fascinated by it, and we all admire it, from which we gain knowledge beyond physics. We all often sigh. It is a waste of talent for physics teachers not to be philosophers.
Yes He said that? Transplantation and regeneration of ayuan's law, the formulas of boss, boss 2 and boss 3. The fairest courtesy of nature is equally divided? He always gives vivid names to what he has learned.
I remember that once, all the students in our class were very silent. The physics teacher said: If you don't break out in silence, you will die in silence forever. Didn't Lu Xun say that? What about you? As a result, several of our classmates answered loudly: Teacher Death adjusted her glasses and said, Hey! ! I don't understand. You guys? ! ?
commemorate
Physics teacher, you are both our teacher and our friend. A year's time, let's get to know each other and learn from each other.
I really don't want you to leave. I can't bear to hear your words on the podium anymore. I can't imagine the future.
What can be done?
Everything has become a memory.
There is a flower that I am most surprised by, surprised by its sudden opening; There is a kind of green tea that I am most eager for, longing for its intoxicating fragrance; There is a teacher whose class I like best.
Unconsciously, it is the second day of junior high school, and there are countless good teachers in my heart. In my opinion, teachers are all good teachers, but some teachers are strict, but they all want every child to be a pillar, don't they?
He has short black hair and big bright eyes. He is very handsome when he smiles, and sometimes he cares about us like a kind grandfather. This is my good teacher, Miss Li. Miss Li is a physics teacher. He is in charge of work certification, and his class is lively and humorous, especially his voice is very nice, and he agrees with it himself!
The lesson that impressed me the most was the one that started in the second day of junior high school. He brought a lot of things into the classroom, which made us curious. First, he introduced himself. Ah! What about this semester! I am responsible for teaching you physics, and I am with your teacher Jia! I used to work with you. My surname is Li. From now on, you should call me Miss Li, not the physics teacher! ? The whole class had a heated discussion because many teachers have said the last sentence n times. Next, Miss Li picked up a piece of tin and said, Look at this. Iron yes, this is a piece of iron. We will use it in physics class in the future, but I took it off the bike on purpose. Oh, I'm exhausted! ? The whole class burst into laughter. Since then, I especially hope to take physics classes and have a strong interest in physics. Once again. Miss Li sacrificed her mobile phone for an experiment! Also jokingly said to us:? Let your manager Jia make it up to me again. ?
This is a good teacher in my mind, and also my favorite and beloved teacher. She kept paddling on the blackboard in the sea of Wang Yang, and fed it to us with all her knowledge.