DAO ĐỘNG ĐIỀU HÒA || HỌC LOFI CỰC CHILL || ĐI NGỦ VẪN ĐƯỢC 10 ĐIỂM || THẦY VNA || MAPSTUDY

Hello everyone, today I will film for you the first lesson in the Lai, Lien, Thi, Middle School, National High School It is also the opening lesson in the 12th grade physics program, which is the lesson about Dai Cuong, Dao Dong, Dieu Hoa Dai Cuong is the most basic lessons for us to have basic knowledge so that you can use this knowledge to learn the higher and more difficult parts Dao Dong, Dieu Hoa is our main content today, and the word Dieu Hoa is a very special quality I will learn later, so I understand first about the word Dao Dong for you You know that in nature there is a very common movement, that is, straight movement, right? For example, when you go on the street, the car or motorbike moves straight, but there is also a common movement that is not bad, that is, Dao Dong Dao is the movement, Dao is the passing, passing, so Dao Dong is the movement, passing or repeating around a position So speaking of Dao Dong, it seems to be big, right? We have a simpler meaning of Dao Dong, which is the word Dung Dung is also Dao Dong, I see Dung Thighs, Dung Feet, right? It is also Dao Dong Or a kind of Dao Dong, a very simple Dung that is popular in our daily life, on our own body There are also things that are Dung, there are things that are Dao Dong, that is our heart, right? It is beating, right? The heart is beating, it is moving back and forth around its balance position Or the blood vessels are also beating, beating, moving, right? So it's just a Dung, and it's a very common movement in nature For example, you see a car passing by your house, a car is driving, the window is Dung, right? It's the moving, passing, passing, or what? You sit in a car or motorbike that is changing the engine, it's also Dung, right? It is very common in our daily life, right? So before you learn about Dung, you need to learn a few things about Dung, as well as Dung cycle It's like when I used to learn about shapes, right? A very special type of shape that I learned in grade 2 was the square shape, right? So before learning about the square shape, I learned about the rectangle shape, then I learned about the rectangle shape, right? There, I learned about the general shapes, then I learned about the special shapes that have a lot of properties So before learning about Dung, I learned about two types of general shapes first The engine is called the rectangle shape, it has four corners, right? Or the cycle is a rectangle shape, but what is it? There, more special is the rectangle shape, right? Four corners, got it? So first I learned about the engine, the engine is the movement, repeating, repeating around a certain position And that position is called the balance position of the object, got it? For example, in grade 10, you have a pendulum, it keeps passing, moving, passing, passing And the position of the pendulum is the balance position of the pendulum So what is the balance position? The balance position is the total position of all forces applied to the object by zero, that is the definition There, the balance position is learned from grade 10 So in short, the engine is the movement, got it? Repeating, repeating, there, around a certain position, that position is called the balance position This is like the rectangle shape, it has four corners, got it? Any corner, got it? And the angle of the corner is 360 degrees, right? And a more special rectangle shape is the rectangle shape So the rectangle shape is also a rectangle shape, right? Then I learned about another kind of cycle, the cycle So the word cycle, it tightens the conditions, it tightens, it adds more conditions I hear the word cycle, it has a negative meaning, it tightens the conditions, repeating, repeating, better, got it? So the cycle must be an engine, and the state of the object is repeated, there, as before, in a certain time I see it must add conditions, right? Just like the rectangle shape is a rectangle, which must have three or four corners, got it? Three corners or four corners are fine, right? So our cycle is the same, it is an engine, like the rectangle shape, the rectangle shape is a rectangle So this cycle must also be an engine, got it? And the state of the object is repeated, as before, in a certain time For example, you see that the line is moving back and forth, right? After a certain time, it returns to its original position, it is called a cycle, got it? So an old word that I see red here, I need to pay attention to The state of the object is repeated, so what is the state of the object? The state includes two factors, that is, you see, the position of the movement and the direction of the movement Note that the state as before must have the position as before and the direction of the movement as before There, you will learn two types of cycles, or two types of synchronized cycles On two machines that we are very popular to examine, that is, on a single pendulum There, a string, then the object moves back and forth, and on a spring pendulum, right? All these types of cycles have been learned from grade 10, but you only learn the normal movement, got it? And we will learn more and more about the movement, about the synchronized movement of the single pendulum and the spring pendulum in the following lessons So here you just need to remember what the teacher is, guys Two important knowledge, got it? That is, about the movement of the engine and the cycle The cycle, note that the state is repeated, the state includes the position and the direction of the movement The old state has the old position and the old direction of movement Another thing is that the equilibrium position is zero, this is the basic knowledge of grade 10, got it? So these two theories, you will almost never touch the lesson about it This is just a very basic foundation, mainly the 99.99% of your exercises fall into the synchronized movement It is a very special shape, the square shape, the most qualitative shape will be the shape that we examine the most, right? As well as the most special movement is the synchronized movement, it is very beautiful, it is very round, guys Ok, let's go to part 2 of the code, the main content that I need to read today is about the synchronized movement It is still a type of mechanical movement, guys, but it adds more conditions, it adds more conditions, tighter and more qualitative So, the synchronized movement is a type of movement that is measured, measured, that is, the position, guys It is examining the exact position of the object, but the degree of the object is shown according to a coordinate or sine of time, got it? Read it again, the synchronized movement is a movement that the degree of the object is shown according to a coordinate or sine of time That is, the degree of the object or the degree of the object is changed according to the time under the coordinate or sine You see, it adds a tight condition, it gives an expression as a coordinate or sine of time to show the degree of the object or the position of the object, got it? So this is a type of synchronized movement, guys, tighter and more qualitative, ok? So, I will meet some types of synchronized movement that I just said about the spring swing as well as the single swing, got it? So, you see, its orbit is of course a straight line, right? The movement of the spring swing or the rotation of the single swing, its orbit is all a straight line The single swing, I will say later, why is it parallel but still a straight line, I will say later, got it? But in short, its orbit is a straight line But if you put a transverse paper underneath and you examine that movement on the paper, it will be formed What is this? Good, special in our type of synchronized movement, very special and very good, got it? So, you pay attention to the relationship between the degree of the coordinate in time of a synchronized movement object It is x equal to A cos omega t plus phi 0 Many of you come here, oh my god, what is it? Terrible knowledge, of course, it gives you a series of knowledge, right? A series of knowledge, right? We will study what each magnitude x is, what is A, what is omega, what is t, what is phi 0, got it? It is much more precise, because it is represented in the form of a general equation You pay attention, there, and you pay attention to what I just said The orbit of a synchronized movement object is a straight line, it has a limit at two ends You see that the cord does not go out forever, it goes to some point, it has to turn back, it can't turn back forever, it has to go up, got it? There, it has a limit at two ends, and our minus A is the side, plus A is the side Our O is the basis position, it moves on an axis of magnitude O, x, x is the magnitude of the object Here you just need to remember the formula, it is the orbit of a synchronized movement object It is a straight line, it has a limit at two ends, the side and the side, got it? It has a limit and it only moves in that area, got it? So here, I would like to answer a question Which is the most complicated synchronized movement, cycle, and mechanical movement, and which is the simplest movement, got it? Many of you will say, oh, I see that the mechanical movement is short, right? It's very easy to understand, but the synchronized movement is complicated, it's too complicated, it puts a very complicated element in here I see that the synchronized movement is difficult to understand, complicated, right? But it's the opposite, guys, got it? Mechanical movement is a kind of complicated and difficult movement But synchronized movement is a simpler, easier, and more complex movement As you remember, the mechanical movement consists of a quadrilateral shape, but the quadrilateral shape is a bit complicated, there are many situations But the square shape has only one situation, that is, our four angles are 90 degrees and the edges are equal, right? It's very easy to draw, because it actually has a lot of special words, got it? There are different cases, there, so the synchronized movement is an easy-to-examine movement Because it has been put into specific processes, physics is science, right? A science subject, when we know the numerical process, there, the examples, it's simple, and it's easy to accept, to apply, to examine, okay? But what we define by literature is very difficult to examine So this is a very beautiful movement, it can be called the queen of all kinds of movements, okay? It's the synchronized movement, okay? And we will go to the next part to study each large number of modes We will analyze the x-plane A cos omega t plus phi 0, which is specifically what, okay? So we will study the generalization process of the synchronized movement x-plane A cos omega t plus phi 0 With the rule, you see, it is a straight line, the shape of the quadrilateral, down a plane, there, the black dot, okay? It is also a straight line, bounded in two planes, okay? There, its transverse radius is from the north to the south, I will repeat it again, please remember, okay? We have the following large numbers that need to be studied, need to be clarified x is the first, then A, then omega, the root is obvious, it is a fraction, okay? t, there, and phi 0, okay? But before studying phi 0, I have a feeling of an old man, it is omega t plus phi 0, then phi 0, okay? So what is x? x is the magnitude or position of the object, it is called the magnitude of the object, okay? And the magnitude or magnitude is compared, there, with the angle we choose, the angle O is the position of the object For example, I choose the right hand side, right? There, so what do you do? So, on the right side of the O is the magnitude of the x-plane, on the left side of the O is the magnitude of the y-plane Our magnitude can be 0, can be negative, can be positive And it is a long magnitude, its unit is centimeters, meters, or millimeters, okay? Simply, the magnitude is the angle of the object compared to the position of the balance, okay? It is the angle of the object compared to the balance, okay? There, the magnitude of the y-plane is on the right hand side of the O, the negative is on the left side of the O, okay? And our x changes in this section, please pay attention to the following Our magnitude A is called the angular magnitude, and it is also a long magnitude, the unit is centimeters or meters, okay? The magnitude is the magnitude of the magnitude, it is on the side, okay? You look at the coordinate, x is equal to A, omega t plus phi 0 You know, our coordinate has a value of magnitude, what is the magnitude? The magnitude of the magnitude is equal to 1, right? So, x is equal to A, right? The magnitude of the magnitude is equal to 1, x is equal to A A is the magnitude, or the y-plane, or the y-plane is the farthest position of the object compared to the balance position Right, the farthest position of the object compared to the balance position For example, the y-plane is the farthest towards the y-plane, the negative is the farthest towards the negative Is it right? The diameter of the object is definitely 2A, okay? The diameter of the object is the double length of the magnitude, because the object runs from negative A to what? To A, right? The magnitude is the extreme magnitude, or the y-plane and the negative are the farthest positions of the object compared to the balance position O Next, you have to remember the magnitude of omega, and you will understand what it is in a moment. Omega is simply the number of poles. The unit is radians per second. Next is T. T, if you think it is the time, you are wrong. T, if you think it is the time, it is not the time. T here, temporarily, I understand this is the time. This is the x-ray of the object at the time T, or the x-ray of the x-ray changes according to the time T. Pay attention, T can understand the time, depending on the way we say it. The x-ray at the time T, or the x-ray of the x-ray changes according to the time T. And of course, the unit of time is the time. So, an entire column inside the column, we call it the interaction of the object. Usually, in the column, it is the origin. For example, the column 30 degrees, the column 45 degrees, in mathematics, it is called the origin. In physics, it is called the interaction. The interaction of the object, what does the interaction do? I will tell you later. The interaction is the origin, it is the origin, the unit is radian. Our phi 0 is the initial interaction of the object. You see, the interaction is omega t plus phi 0, right? That is the interaction at a time T. But if T is equal to 0, it is the initial time. Then the entire column omega t plus phi 0 will only be phi 0. Because T is equal to 0. So phi 0 is called the initial interaction. It is also the interaction, but it is the interaction at the initial time with omega t equal to 0. So it is always the initial interaction. The unit is still the origin, the unit is radian. And what does the interaction do? The interaction is used to determine the state of the object. This is a difficult theory. I just taught you. What does the state include? It includes the position and the direction of the object. So the interaction is used to determine the position and the direction of the object. Or simply to determine the state of the object. This is a very important part. I will write it down. How can we remember it? In the next exercise, we will ask a lot of these equations. Learn a lot of equations at one time. And what does omega mean? Omega is the original number. What does it mean? I will explain it later. I just said that there is a large number that I haven't explained yet. That is the original number of the interaction. When you go to part 3 of the code, it is the initial number and the original number. The concept of initial number. The first time you meet it is from 5th grade, right? Initial number is about the time the object repeats an action. Right? Learn from grade 7 is like that. So here you know, it is a learning about the interaction. Interaction is the transition back and forth around a position. Right? And it is a kind of cycle. Right? I remember that mechanical movement is also a cycle. Square must be a rectangle. Right? And do you remember the definition of a cycle? The state of the object is repeated after a period of time as before. Do you understand? Here. So simply, our harmonic motion. Its state is also repeated. There. After a certain period of time. And that is the period of motion. Do you understand? The period of motion is the shortest time for the object to repeat an action. Do you understand? The state of motion. What does it mean? The state of motion. Right? The position of motion. The time. The transition of motion. Do you understand? The period of motion is the shortest time. Right? There. For the object to repeat an action. The word period is very popular. For example, if you go to school far from home. Right? There. Every weekend, Sunday, you go home. Period is 7 days. You go home to visit your parents. Right? There. 14 days. You have met twice. There. Right? So the period of motion is the shortest time for the object to repeat an action. The state of motion. Do you understand? The word period is very popular. For example, if you go to school far from home. Right? The period of motion is the shortest time for the object to repeat an action. The word period is very popular. For example, if you go to school far from home. Right? The word period is the shortest time for the object to repeat an action. The word period is very popular. For example, if you go to school far from home. Right? The word period is very popular. For example, if you go to school far from home. Right? The word period is the shortest time for the object to repeat an action. The word period is very popular. For example, if you go to school far from home. Right? The word period is the shortest time for the object to repeat an action. The word period is very popular. For example, if you go to school far from home. Right? The word period is the shortest time for the object to repeat an action. The word period is very popular. For example, if you go to school far from home. Right? The word period is the shortest time for the object to repeat an action. The word period is very popular. For example, if you go to school far from home. Right? The word period is the shortest time for the object to repeat an action. The word period is very popular. For example, if you go to school far from home. Right? The word period is the shortest time for the object to repeat an action. The word period is very popular. For example, if you go to school far from home. Right? The word period is the shortest time for the object to repeat an action. The word period is very popular. For example, if you go to school far from home. Right? The word period is the shortest time for the object to repeat an action. The word period is very popular. For example, if you go to school far from home. Right? The word period is the shortest time for the object to repeat an action. The word period is very popular. For example, if you go to school far from home. Right? The word period is the shortest time for the object to repeat an action. The word period is very popular. For example, if you go to school far from home. Right? The word period is the shortest time for the object to repeat an action. The word period is very popular. For example, if you go to school far from home. Right? The word period is very popular. For example, if you go to school far from home. Right? The word period is very popular. For example, if you go to school far from home. Right? The word period is very popular. For example, if you go to school far from home. Right? The word period is very popular. For example, if you go to school far from home. Right? The word period is very popular. For example, if you go to school far from home. Right? The word period is very popular. For example, if you go to school far from home. Right? The word period is very popular. For example, if you go to school far from home. Right? The word period is very popular. For example, if you go to school far from home. Right? The word period is very popular. For example, if you go to school far from home. Right? The word period is very popular. For example, if you go to school far from home. Right? The word period is very popular. For example, if you go to school far from home. Right? The word period is very popular. For example, if you go to school far from home. Right? The word period is very popular. For example, if you go to school far from home. Right? The word period is very popular. For example, if you go to school far from home. Right? The word period is very popular. For example, if you go to school far from home. Right? The word period is very popular. For example, if you go to school far from home. Right? The word period is very popular. For example, if you go to school far from home. Right? The word period is very popular. For example, if you go to school far from home. Right? The word period is very popular. For example, if you go to school far from home. Right? The word period is very popular. For example, if you go to school far from home. Right? The word period is very popular. For example, if you go to school far from home. Right? The word period is very popular. For example, if you go to school far from home. Right? The word period is very popular. For example, if you go to school far from home. Right? The word period is very popular. For example, if you go to school far from home. Right? The word period is very popular. For example, if you go to school far from home. Right? The word period is very popular. For example, if you go to school far from home. Right? The word period is very popular. For example, if you go to school far from home. Right? The word period is very popular. For example, if you go to school far from home. Right? The word period is very popular. For example, if you go to school far from home. Right? The word period is very popular. For example, if you go to school far from home. Right? The word period is very popular. For example, if you go to school far from home. Right? The word period is very popular. For example, if you go to school far from home. Right? The word period is very popular. For example, if you go to school far from home. Right? The word period is very popular. For example, if you go to school far from home. Right? The word period is very popular. For example, if you go to school far from home. Right? The word period is very popular. For example, if you go to school far from home. Right? The word period is very popular. For example, if you go to school far from home. Right? The word period is very popular. For example, if you go to school far from home. Right? The word period is very popular. For example, if you go to school far from home. Right? The word period is very popular. For example, if you go to school far from home. Right? The word period is very popular. For example, if you go to school far from home. Right? The word period is very popular. For example, if you go to school far from home. Right? The word period is very popular. For example, if you go to school far from home. Right? The word period is very popular. For example, if you go to school far from home. Right? The word period is very popular. For example, if you go to school far from home. Right? The word period is very popular. For example, if you go to school far from home. Right? The word period is very popular. For example, if you go to school far from home. Right? The word period is very popular. For example, if you go to school far from home. Right? The word period is very popular. For example, if you go to school far from home. Right? The word period is very popular. For example, if you go to school far from home. Right? The word period is very popular. For example, if you go to school far from home. Right? The word period is very popular. For example, if you go to school far from home. Right? The word period is very popular. For example, if you go to school far from home. Right? The word period is very popular. For example, if you go to school far from home. Right? The word period is very popular. For example, if you go to school far from home. Right? So, this is the connection formula between the three quantities F, T and Omega. This is the last principle that you have learned today.