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What's the use of you? The college entrance examination does not take the Olympiad questions, so let's focus on regular study. When I was in high school, I liked the Physics Olympiad, I wasn't very interested in other subjects, and I won awards in competitions, but it was all floating clouds, useless, at most to satisfy vanity, and now I think about it, I really shouldn't be.
Refining yourself into a machine that can do problems with light, no matter how powerful it is, it is meaningless, and the gains outweigh the losses. If you think about how awesome China is in the International Olympiad every year, almost everyone wins gold medals, and ranks first every year, what is the use of miles, and it has the ability to win a Nobel Prize or a Fields Medal. It's better to be all-round development, it's better to read more literary books if you have time, and if you're interested, you can also read some science, I have also read "A Brief History of Time", "Introduction to Special Relativity" and the like, so it's good to know a little bit.
It's okay to dip that thing a little bit, it's not worth spending a lot of time on it, if you want to buy it, just buy a relatively thin Olympiad tutorial and look at it, which is available in general bookstores. From the perspective of life as a whole, we still have a lot to learn and do, such as exercising, exercising eloquence, and cultivating some artistic accomplishments. Many people live without thinking about what we really need and do things that are useless.
You'll find out in a few years.
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On the ** ah. Or a book city.
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Chapter 1 Kinematics.
1 Content Standards.
1) Through historical facts, we will have a preliminary understanding of the background of modern experimental science and understand the role of experiments in promoting the development of physics.
Example 1 Understand Aristotle's main ideas and research methods on force and motion.
Example 2 Understand Galileo's experimental research work, and understand Galileo's scientific ideas and methods on experiments.
2) Through the understanding of the particles, understand the characteristics of physical models in physics research, and experience the role of physical models in exploring natural laws.
Example 3 Recognize the circumstances in which an object can be regarded as a particle.
3) Experience the experimental research process of linear motion with uniform velocity, understand displacement, velocity and acceleration, understand the law of linear motion with uniform velocity, and experience the role of experiment in discovering the laws of nature.
Example 4 Dotting timer, strobe photography, or other experimental methods are used to study uniform linear motion at variable speed.
Example 5 Illustrates the experimental and reasoning methods used by Galileo to study the movement of free fall through historical facts.
4) Be able to use formulas and graphs to describe linear motion with uniform variable speed, and appreciate the importance of mathematics in the study of physical problems.
2 Activity Recommendations.
1) Through experiments, the fall of objects of the same mass and different sizes in the air is studied to understand the influence of air on the motion of falling bodies.
2) To understand and discuss the significance of Galileo's research on the motion of objects in the development of science and human progress by searching for materials.
Mock tests. Chapter 2 Balance of Objects.
Mock tests. Chapter 3 Newton's Laws of Motion.
Mock tests. Chapter 4 Energy and Momentum.
Mock tests. Chapter 5: Energy.
Mock tests. Chapter 6 Vibrations and Waves.
Mock tests. Chapter 7 Thermal.
Mock tests. Chapter 8 Electrostatic Fields.
Mock tests. Chapter 9 Steady Current.
Mock tests. Chapter 10 Magnetic Fields and Electromagnetic Induction.
Mock tests. Chapter 11 Alternating Current and Electromagnetic Waves.
Mock tests. Chapter 12: Optics.
Mock tests. Chapter 13 Atomic Physics.
Mock tests.
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In addition to giving detailed explanations of all the 680 exercises in the New High School Physics Olympiad Guide, the New High School Physics Olympiad Practical Dictionary is tailor-made to further expand readers' thinking and horizons and grasp the trend of changes and development of high school physics competitions. When giving specific answers to each exercise, emphasis is placed on thinking guidance, method summarization, and ability development.
Extraction code: 14fs After copying this content, open the network disk mobile app, which is more convenient to operate Introduction: "Mechanical Design Quietly Infiltrated - The Ninth Edition of the Wild Socks" is a book published by the Higher Education Press, the author is the Department of Mechanical Principles and Mechanical Parts of Northwestern Polytechnical University, Pu Lianggui, Chen Guoding, Wu Liyan.
Have faith in life.
Faith is a flower blooming in the corner, although it is not conspicuous, but the fragrance that permeates it can refresh people's hearts; Faith is a sail sail on the ocean, although small, but it can ride the long wind and break the waves; Faith is a candle that burns in the darkness, faint but dispelling the gloom of the night. —Epigraph. >>>More
The smell of wine and foam is because it is too hot and fermented. Honey crystallizes in winter, and it will melt and ferment if it is too hot in summer, both of which are normal, and it is best to put it in the refrigerator, not to put it in a place with high temperature for a long time, it will deteriorate after a long time. I haven't encountered the filaments you mentioned, and our honey is kept in the refrigerator in the summer, so I haven't encountered this situation like what you said.
According to my understanding, after understanding that a cone is formed by a right triangle rotated 360 degrees, it only involves some junior high school knowledge (two-point distance formula, parallel line properties), and the final v is what is sought. >>>More
1.Let me bask in the spring sunshine with my chest straight. >>>More