1, Su Shi's "Jiangchengzi Mizhou Hunting" "Bow like a full moon, look northwest and shoot Sirius."
The bow and arrow with elastic bending has elastic potential energy, and the arrow that leaves the string is moving and has kinetic energy, so the elastic potential energy is converted into kinetic energy.
2, Li Bai's "Looking at Lushan Waterfall" "Flying straight down thousands of feet, it is suspected that the Milky Way has fallen for nine days."
Water falling from a height should have kinetic energy and potential energy, so waterfalls flying in a straight line contain mechanical energy.
3, Wang Anshi's "Plum Blossom" "If it's not snow from afar, how can you see the fragrance?"
"Fragrant fragrance comes" and "fragrant flowers attack people" are all diffusion phenomena (molecular thermal movement).
4. Lu You's "Village Living in the Mountains" "The flowers smell like sudden warmth, and the sound of trees is happy."
"Flower gas attacks people" is the result of irregular movement of aromatic oil molecules secreted by "suddenly warming" flowers, which shows that temperature affects the intensity of molecular movement.
5, Bai Juyi's "Mujiangyin" "Poor September third night, like a pearl like a moon like a bow."
The formation of dew is the result of the liquefaction of water vapor in the air into dew.
6. Zhang Ji is a night berth near Fengqiao and the cold night.
The formation of frost is the result of the drop of temperature and the condensation of water vapor (gas) in the air into frost (solid).
The legend of state change
7. Li Daoyuan's "Three Gorges" "The hollow valley rings, and the sorrow turns for a long time."
It shows that the sound will be reflected when it encounters obstacles in the process of propagation. When the reflected sound reaches the human ear 0. 1s later than the original sound, the echo can be heard.
"The pool is clear and the water is shallow."
Refraction of light: The light at the bottom of the water is refracted on the water surface after entering the air, and the refraction angle is greater than the incident angle. When the refracted light enters the human eye, the human eye will look against the direction of the refracted light and feel that the bottom of the pool is very shallow.
9. The late Tang poet Gao Pian's "Mountain Pavilion in Summer" "The tree is dark and the summer is long, and the balcony is reflected in the pool."
"Dark shadow" is a dark area formed when light meets an opaque object in the process of traveling along a straight line-it contains the physical knowledge that "light travels along a straight line".
"Reflection" is an imaging phenomenon when light is reflected, and the generated image is an upright virtual image-the physical knowledge contained is "light reflection" (plane mirror imaging).
10, Mao Zedong's "Seeing off the God of plague" "Sit on the floor and travel 80,000 miles a day"
The earth rotates once every 24 hours. Because the earth's equator is 40,076 kilometers long, it is feasible to sit 40,000 kilometers near the equator every day. This is what the poem "Sit on the floor and travel 80,000 miles a day" means.
Second, the chemical knowledge in poetry
1, the poem of lime (money)
It can only be extracted from the deep mountains after being struck by thousands of hammers. It regards the burning of the burning fire as a very common thing. Not afraid of broken bones, leaving innocence in the world.
The chemical knowledge contained in it is the process that limestone (composed of calcium carbonate) decomposes into calcium oxide, namely quicklime, at high temperature, and the chemical reaction equation is CaCO3==CaO+CO2↑.
Quicklime is white, flawless and clear. The author carefully observed this classic chemical phenomenon, and realized the philosophy of life of "white bones and broken mud, innocence remains in the world", which is the embodiment of the author's noble sentiment.
2. Luo Dajing's "He Lu Yi Qian beheaded officials" Song Dynasty
"A dollar a day; Thousands of dollars a day; The rope was sawed off; Water droplets will wear away. "
A drop of water wears away a stone, which is used to describe the ability to persevere and do difficult things well with subtle power.
Chemical knowledge includes two aspects. On the one hand, limestone reacts with water and carbon dioxide to produce water-soluble lime milk, namely calcium bicarbonate. The reaction equation is CaCO3 +CO2 +H2O==Ca(HCO3)2.
On the other hand, the current acid rain (sulfurous acid, sulfuric acid and nitric acid, etc. ) corrodes limestone, and the reaction equation is CaCO3+H2SO4=CaSO4+H2O+CO2↑.