Of course, you can also use the formal paper mode. Its manifestations are various: it can be a conclusion drawn after careful observation and in-depth thinking about something; It can be the conclusion of analysis after hands-on experiment; It can also be a summary after a local investigation; You can also draw a conclusion through logical reasoning ... Abstract: Physics is a natural subject with a long history. With the development of science and technology and the progress of society, physics has penetrated into all fields of human life; Physics exists around physicists; Physics also exists around students; In learning, students should establish scientific consciousness, focus on the big picture, start with small things, experience observation, thinking, practice, innovation and other activities, gradually master scientific learning methods and train scientific thinking methods, and soon you will have the mind of a scientist, laying a solid foundation for your amazing development and beautiful life in the future. Keywords: Physics permeates all fields of human life. Physicists are surrounded by scientific consciousness, scientific learning methods and scientific thinking modes. As an important branch of natural science, physics not only plays an important role in promoting the progress of material civilization and deepening human understanding of nature, but also has an indispensable influence on the development of human thinking. From natural philosophy in Aristotle's time to classical mechanics in Newton's time, and then to relativity and quantum mechanics in modern physics, all these are tangible manifestations of physicists' scientific quality, scientific spirit and scientific thinking. With the development of science and technology and the progress of society, physics has penetrated into all fields of human life. For example, just looking for the optical knowledge in the car has the following points: 1. The rearview mirror outside the driver's cab is a convex mirror. By using the divergent effect of the convex mirror on light and the characteristics of vertical, narrow and virtual image, the real object you see is smaller and the observation range is wider, thus ensuring driving safety. 2. The reflector in the car headlights is concave mirror, which is made by using the property that concave mirror can reflect the light from the light source at its focus into parallel light. Car headlights is always equipped with glass lampshades with horizontal stripes and vertical stripes. Automobile headlights consist of a light bulb, a mirror and a glass cover in front of the lamp. According to the knowledge of lens and prism, car headlights glass cover is equivalent to the combination of lens and prism. When driving at night, drivers should not only see the road ahead, but also see the fixers, road signs, forks and so on. The lens and prism refract the light, so the lampshade diffuses the light to the required direction according to the actual needs, so that the light illuminates the road in front of the car and the roadside scenery evenly and softly. At the same time, this astigmatism lampshade can slightly refract some light to illuminate road signs and milestones, thus ensuring driving safety. 4. After the car is fitted with brown glass, it is difficult for pedestrians to see the faces of people in the car clearly. The brown glass can reflect part of the light and absorb part, so the light penetrating into the car is very weak. In order to see the passenger's face clearly, it is necessary to reflect enough light from the face and transmit it to the outside of the glass. Because the light inside the car is weak and there is not enough light to transmit, it is difficult to see the passenger's face clearly. Except for buses, the front windows of most cars are inclined. When the front window of the car is tilted, the image of the passenger in the car reflected by the glass is in front, and it is impossible for pedestrians on the road to appear in the air above, so that the image of the passenger in the car is separated from the pedestrians on the road, and the driver will not have an illusion. The front window of a bus is much higher than that of a car. Even the vertically installed front window looks the same height as the window, and pedestrians on the road cannot appear at this height, so drivers will not confuse the image of passengers outside the window with pedestrians on the road. Another example is as follows: spiced tea eggs are very popular with people, especially when they are hot. Careful people will find that when the eggs are just taken out of the boiling gravy, if they are eager to shell and eat them, it is inevitable to peel them off with the "meat". To solve this problem, there is a trick, that is, soak the eggs just out of the pot in cold water for a while, and then peel them, so that the eggshells can be peeled easily. General substances (with a few exceptions) have the characteristics of thermal expansion and cold contraction. However, when different substances are heated or cooled, the speed and amplitude of expansion and contraction are different. Generally speaking, substances with low density are easier to expand and contract than substances with high density, and substances with fast heat transfer are easier to expand and contract than substances with slow heat transfer. An egg consists of a hard shell, a soft protein and a yolk, and their expansion and contraction are different. When the temperature changes slightly or slowly and evenly, nothing can be displayed; Once the temperature changes dramatically, the expansion and contraction speeds of eggshells and protein are inconsistent.