Physical principles: reflection and refraction of light.
The mountains are stacked in the water, and there is a reflection of the mountains in the water. There is no unattractive mountain, no unattractive water.
Second, Hanshan Temple outside Gusu City, the midnight bell goes to the passenger ship. -Zhang Tang Ji "Sleeping in Fengjiang"
The spread of sound.
In the lonely and quiet Hanshan Temple outside Gusu, the bell rang to the passenger ship in the middle of the night.
Third, the green hills on both sides of the strait are opposite, and the sails are coming alone. -Tang Li Bai's "Looking at Tianmen Mountain"
Physical principle: Castle Peak is static relative to the ground, but with the moving ship as the reference, Castle Peak becomes moving, with the river bank as the reference, and the solitary sail comes from the sun.
The beautiful scenery of the green hills on both sides of the strait is inseparable, and a solitary boat comes from the horizon.
April, April, beautiful scenery on earth, peach blossoms in mountain temples. -Tang Bai Juyi's Peach Blossom in Dalin Temple
Physical principle: The higher the terrain, the slower the temperature rises. In the same season, the temperature on the mountain is lower than that on the mountain.
In April, all the flowers have withered, and the peach blossoms in the ancient temple in the mountains have just bloomed.
Verb (abbreviation of verb) How the water of the Yellow River flows out of heaven and into the ocean, which is gone forever. -Tang Li Bai's "Into the Wine"
Physical principle: water cycle.
The water of the Yellow River fell from the sky, and the waves rolled straight into the East China Sea, never to return.
2. Ancient poems and proverbs about physics 12 sentence: the refraction and reflection of light between the colorful clouds of Baidi.
Jiangling, thousands of miles away, the relationship between distance and time.
Apes on both sides of the strait can't stop crying, and their voices are generated and spread.
The canoe has passed through Chung Shan Man, and the change of object position is called mechanical movement.
First, the energy knowledge in ancient poetry
1. Su Shi's poem "Bow like a full moon, look northwest, shoot Sirius". The energy conversion involved in poetry is the conversion from elastic potential energy to kinetic energy.
2. Li Bai's poem "Flying down three thousands of feet, it is suspected that the Milky Way has set for nine days". Waterfalls in poetry contain great mechanical energy.
Second, the reference knowledge in ancient poetry.
1, Mao Zedong's poem "Sit on the ground and walk 80,000 miles a day, overlook the sky and see John Wan" means that "sit on the ground" is static relative to the ground, and "walk on the sky" is moving relative to the sun.
2. Li Bai wrote in the poem "Looking at Tianmen Mountain" that "the green hills on both sides of the strait look at each other and sail alone." "Castle Peak Opposite" is set in a boat, and "Lonely Sail from the Sun" is set in a river bank.
3. In the lyrics of "Sparkling Red Star", "The small bamboo raft is in the middle reaches of the river and walks on both sides of the towering green hills". The Middle Reach of the Bamboo Raft River takes the earth as the reference, and A Cross-strait Journey on the Green Mountain takes the ship as the reference.
4. "A strong wind blew the well outside the fence last night." The well was blown away and the fence was used as a reference.
Third, the theoretical knowledge of heat and molecular dynamics in ancient poetry
1. In Lu You's Village Living in Mountain Happiness, "the flowers smell like sudden warmth, and the sound of magpies passing through the trees is like a new sunny day". The "fragrance of flowers" in poetry is the result of irregular movement of aromatic oil molecules secreted by flowers, and temperature affects the intensity of molecular movement.
2. In Zhang Xu's Stay in the Mountain, "even if there is no rain, the clothes are stuck in the depths of the areola". -Dew formation (liquefaction).
3. Bai Juyi's "Mu Jiang Yin" "Poor September is late at night, dew is like a pearl and the moon is like a bow"-the formation of dew (liquefaction).
3. What are the poems about "physics"?
1. Multiply and divide the letter physics, and I feel that I have won everything. -Year: Song Author: Wen Tianxiang's "Pengcheng Journey"
People with poor physics are addicted to science. -Year: Song Author: "Dai Chengshu Two Rhymes"
Things must be material, and human safety is a secret. -Year: Song Author: Shao Hua "Start and End"
I knew physics when I was a minor, and I always kept my promise. -Year: Song Author: Wang's "The Emperor's Dragon Boat Festival Nightingale Sticker"
5. Fine deduction of physics benefits from multiplication and division. -Year: Song Author: Rebecca "Plum Blossom"
6. Sit still and watch physics to add color to your temples. -Year: Song Author: Zhang Gui's "Miscellaneous Xing"
7. Think carefully about the physical instructions, why not just force your face. -Year: Song Author: Wu Mi "Thirty Memories of Going to Biyun Pavilion"
8. Qingshan makes people drunk, and the gains and losses are all physical. -Year: Yuan Author: Herry Liu's "Mountain Slope Sheep Yunshan Intention"
9. In ancient times, the monarch and the minister could push each other physically. A wise man knows what to do and advances and retreats properly. -Year: Tang Author: Du Fu's Romance of the Three Kingdoms
10. Seagull physics seems to be able to keep up, and apricot flowers are suspicious and want to accompany people. -Year: Tang Author: Luo Yin "The Riverside Scene at Qingming Festival" Song Jiang Huaiyou
1 1. There is no physical inconsistency. Sigh that fish and shrimp are bitter and thin, and geese are fat. -Year: Yuan Author: "Jin Opera vs Lotus" Author:
12. Life is really hard, and physics should not be lonely. -Year: Song Author: Huang Tingjian's Rhyme of Hemerocallis crassipes'
13. And I'm crazy and want to be the best in physics. -Year: Song Author: Wang Ling's "Original Locust"
14. If time is not free, physics will be different. -Year: Ming Author: Ten Poems in the Garden by Tang.
15. I also know that physics is related to people, and those who have experienced ups and downs are disheartened. -Year: Song Author: Shi Shaotan Year: Ming Author: Tang's Fifty-five Ancient Fu Poems
16. Is there any physical change in Iraq? Faith is the best choice. -Year: Tang Author: Bai Juyi's Tonghua
4. Ten sentences of applied physics in daily life Elevator: combination of moving and static pulleys and scissors: swimming ring based on lever principle, life jacket, boat: buoyancy pressure cooker: atmospheric pressure people can walk: friction boiling water: evaporation, boiling, looking in the mirror: optical principle speaker: acoustics, etc. I'll tell you about the extensive application of mechanical knowledge in detail. Application of gravity: We live on the earth, and gravity is everywhere.
For example, when building a wall, workers often check whether the wall is vertical with a heavy hammer line, which makes full use of the principle that the gravity direction is vertical downward; The lower end of badminton is heavier, which is to protect the feathers by lowering the center of gravity. Drivers can continue to slide when they turn off the engine when going downhill, saving energy by gravity. In agricultural production, seedling throwing technology also uses the direction of gravity to vertically downward. If there is no gravity, the world is unimaginable, water can't be poured into the mouth, people can't fall back to the ground after taking off, flying dust floats in the air forever, and the whole nature is turbid.
When teaching gravity, let students have a heated discussion, fully tap students' imagination, and know that gravity is closely related to our production and life. 2. Friction is an important force, which is widely used in social production and life.
For example, when people walk, it is very difficult to walk on the smooth ground because the friction of the contact surface is too small; When the car slides uphill, sprinkle some rough stones or straw on the road surface, and the car can move forward smoothly, and increase friction by increasing roughness; Making the sole into various patterns also increases the roughness of the contact surface and friction; Roller skates worn by skaters change sliding friction into rolling friction, reduce friction and increase sliding speed; Lubricating oil is added to all kinds of machines to reduce the friction between gears and ensure the good operation of the machines. It can be seen that human production and life are actually related to friction, so we should make full use of beneficial friction and minimize harmful friction.
3. The application of elasticity can be used to carry out a series of social production and life activities, and the force has size, direction and action point. If the high-rise building needs to lay a solid foundation, the bridge design needs to accurately calculate the force of each part; Tug of war requires thick rope to prevent excessive tension from breaking; A thicker steel wire should be added to the center of the high-voltage line to support a larger erection span; The explosive power generated by athletes in an instant and so on.
It can be seen that the knowledge of physical mechanics is very useful in production and life practice. From cosmic celestial bodies to microscopic molecules and atoms, there are all kinds of forces everywhere. As long as teachers organically combine textbook knowledge with production and life practice, they can greatly stimulate students' interest in learning, thus cultivating them to establish the spirit of advocating science, researching science and applying science. Second, the application of thermal knowledge Weather is closely related to various human activities, including a lot of physical thermal knowledge.
If people often drink boiled water and eat cooked food, they need to heat water and food. In the heating process, they need to know the basic knowledge of fuel combustion or electric heating. Sprinkle some water on the ground in hot summer to cool down through evaporation of water; How to keep warm in cold winter, car engines often use water to dissipate heat and protect seedlings from freezing, and rice fields often use water at night, all of which make full use of the characteristics of high specific heat of water; Rice grows in summer, because rice is a plant that likes high temperature; The manufacture of various mechanical bearings and train tires makes full use of the principle that solids expand when heated and contract when cooled. These are all important applications of thermal knowledge in production and life.
Third, the application of photoacoustic phenomenon. Man needs light to survive. It depends on the sun during the day and needs light at night. Imagine that without light in the universe, the whole world would fall into darkness and all living things would not survive. This shows the importance of light.
However, what laws light follows and how human beings use these laws to serve themselves are the purpose of human research on light. For example, solar eclipse follows the straight line propagation of light in the same uniform medium; In the classroom, fluorescent tubes are usually used instead of incandescent lamps. In addition to energy saving, it is more important that incandescent lamps are easy to form shadows, while fluorescent tubes are parallel lights, which can avoid shadows and enable us to work and study well. The reason why cars driving at night don't turn on the lights is to avoid the driver's sight being affected by the reflected light from the windshield. The car's reflector uses convex mirror instead of flat mirror to expand the observation range. Myopia patients need to wear concave lenses to correct the imaging of objects on human retina. The flashlight can use the light energy emitted by the concave focus to emit parallel light to "receive light".
In addition, the length of the classroom is limited to about 10m to avoid the original sound and secondary echo, so that the two sounds are superimposed together to strengthen the original sound; The measurement of the distance between two mountains and the depth of the seabed is also based on the principle of sound propagation. Fourth, the application of electrical knowledge Since Farah discovered the phenomenon of electromagnetic induction, mankind has entered the era of electrification.
Electricity for living, transportation, factories and enterprises all come from generators, and electricity has become an indispensable main energy source for human beings. The application of electricity can be seen everywhere in our life.
For example, a flashlight used for walking at night converts chemical energy into electrical energy; Dry batteries will not get an electric shock accident, and improper lighting electricity will endanger our lives. This is because the safe voltage is not higher than 36V, and the voltage of the lighting circuit is 220V, which is much higher than that of safe voltage. Rice cookers and electric frying pans for cooking convert electric energy into internal energy, and electric locomotives run on electric energy, so all household appliances need electricity. Assuming that there is no electricity, the motor does not turn, the electric locomotive does not run, and the electrical appliances do not work, human society will go backwards.
Therefore, electricity is a good partner of mankind. As long as we strictly follow the principle of safe use of electricity, we can tame it and use it to serve mankind. In a word, physical knowledge has a wide range of applications from life reality to high-tech frontier.
It is necessary for students to understand the importance of learning physics knowledge, the important role of physics knowledge in contemporary society, and pay more attention to the latest development of physics, so that students can combine their own physics knowledge with the current social practice and life practice, keep pace with the times, adhere to Scientific Outlook on Development, and use physics knowledge to promote the harmonious development of society and better benefit mankind. "Boiling water doesn't ring, ringing water doesn't open"? Everyone in life may have this experience: when boiling water, the water boils.
5. Ask for 10 proverbs about physics and say 1. The water tank will sweat under the condition of no load (the water in the tank is evaporated, and the temperature below the water surface is lower than that of air, so the water vapor in the air will liquefy when it meets the lower temperature outer surface, and the water droplets will adhere to the outside of the tank. Although the water vapor content in the air on sunny days is low, it will liquefy on the outer surface of the tank, but a small amount will liquefy quickly. Water droplets can't form. If the air is humid, the water will evaporate slowly, and the outer surface of the water tank will liquefy more than vaporize, so water droplets will appear. The water vapor content in the air is high, and it is likely to rain, so there is definitely no need to water the land. It is cold before frost and cold after snow (frost is formed by condensation of water vapor on the ground at low temperature, so the temperature before frost formation must be low. After the snow falls, it must melt. Therefore, it is cold after snow. 3. Snow is not cold enough to melt snow (snow is formed by condensation of water vapor or solidification of water droplets in high altitude, condensation and solidification are exothermic processes, and melting snow is a melting process, which requires heat absorption. 4. When the snow falls on the mountain, frost the plain first (on snowy days, the temperature in the mountain is lower than that in the plain below, and the snow falling on the mountain is not easy to melt, but it is easy to melt in time. Therefore, there is more snow in the mountains than in the plains. There is more water vapor on the surface of the flat land under the mountain than on the mountain, so the flat land is easy to mix with frost, but it is not easy to frost on the mountain. The snow falling to the ground has many loose gaps, which are filled with stagnant air and are poor conductors of heat. Can better prevent heat loss in the ground, protect crops, and will not freeze in cold winter. 6. It's not a cold day. The density of water is the highest at 4℃. When the overall water temperature drops to 4℃, the convection of water stops. The temperature continues to drop, the upper water temperature drops below 4℃, and the density does not sink. The bottom water temperature is kept at 4℃, and when the upper water temperature drops to 0℃ and continues to heat up, the water surface begins to freeze. Because water and ice are poor conductors of heat, smooth and bright ice surface can prevent radiation, so these three heat transfer methods are not easy to carry out. It takes a long time to form thick ice. 7. Boiling water doesn't ring, but ringing water doesn't open (in the process of water heating, the air attached to the wall and water form small bubbles, and the bubble volume increases with the steam entering, but the temperature of the upper water is low, and some steam in the rising bubbles condenses into water to make the bubbles smaller or burst, so many bubbles vibrate and make noise, that is, "noise doesn't open".