What physical knowledge does the word "sit in the well and watch the sky, see the sky with insight, and a rising tide lifts all boats" contain?

Looking at the sky from the well reflects the "straight line propagation of light"

One-hole view embodies "pinhole imaging"

The high tide reflects the "buoyancy" because the ship has been floating, the gravity is unchanged, and the buoyancy is unchanged, so the volume immersed in the water is unchanged, so the high tide lifts the ship up.

Clever use of "jingle" to remember physical knowledge, 1 instrument reading

The measuring instrument should read, and the minimum scale should be remembered; The balance swims to the left, and the surface of the measuring cylinder looks at the bottom; The pressure gauge reads the height difference, and the densimeter marks the multiple; Look at the current and voltage first, there are decimals on the watt-hour meter.

Physics textbooks for middle schools involve 12 physicists, such as Volt, Torricelli, Galileo, Ampere, Coulomb, Pascal, Archimedes, Oster, Ohm, Newton, Faraday, Joule and Watt. They are located in Italy, France, Greece, Denmark, Germany and Britain. The jingle can be compiled like this: it means Volteau and Jia, and the method includes Anku and Pa; Deouying Niudijiaowa, Middanao, Greece.

3 convex lens imaging law

Double focal length is divided into virtual and real; Double focal length and sub-size; Double focus object image, etc.

The close-up image of an object is much larger; Things are far like close images, becoming smaller. The real image is inverted and the virtual image is positive, so it is necessary to distinguish between enlargement and reduction.

The graphic representation of force is very simple. Choose a good scale and draw a line. The length indicates the size, and the arrow indicates the direction. Pay attention to the tail of the arrow and put it at the action point.

Power supply, voltage and current power supply seem to have power supply, pushing the charge to the positive electrode. There is a voltage between the positive and negative electrodes, and the circuit is turned on to transfer charge.

6 Ampere Law The magnetic induction line around the conductor is judged by Ampere Law. Rule 1 judge a straight line and let the right hand hold the line straight. The direction of the current refers to the thumb, and the four fingers refer to the magnetic induction line. Judge rule 2 of the spiral, and let the right hand hold the solenoid tightly. The direction of the current is four fingers, and the N pole is at the end of the thumb.

The key point of installing electric lights is to walk side by side by fire, with the ground wire into the lamp holder, the live wire into the switch, and the switch connected to the lamp holder.

8 Safe use of electric jingle lights is six feet from the ground, and fixed installation is the most important. When the radio touches the power line, the horn screams and smokes.

If someone gets an electric shock, the first thing to do is to cut off the power supply. Riddle 1, you lower your voice, it plays dumb, you raise your voice, it answers, you have to learn your accent skillfully, but you can't find it anywhere. Echo (guessing a physical phenomenon)

2. The room is only the size of mung beans, and there are thousands of brothers living in it. The new generation of electronic equipment is naturally pursuing miniaturization. (Guess a radio element) IC 3. A galaxy is shining, and the wind can't blow the waves. When it meets the Jehol, it will rise, and when it meets the cold river, it will fall. (Guess a physical experimental instrument) Thermometer 4. An old man,

It's fair and unfair to shoulder the burden. (Guess a physical experimental instrument) Balance

5, come and go without a trace, can transmit scenery, can transmit sound, (guess a physical phenomenon) electromagnetic waves.

6, clairvoyance, clairvoyance. There are two kinds of stunts at the same time, so you don't have to speak across the world. Just like face to face.

(Guess one thing) Videophone

7. The channel is thinner than the hair, with good confidentiality and huge capacity. It is very convenient to call and send messages without interference.

(Guess 1) Optical fiber communication

Seen from one side of the mountain, the heights of the peaks are different, which can be used for making movies and TV. Both military and medical use. (guess) holography

9, reward victory (hit a physical term) quarks.

10, song score without words (with physical nouns)

If the wire is on fire, you can't splash it with water. 1 1, wave after wave (hit a physical noun)

12, read-only sage book (a-type physical term) optics

13, parallax of cup bow snake shadow (use a physical noun)

14, time flies (with a physical noun) every hour.

15, take a back seat (type A physical term) displacement.

16, smile through tears in disguise (a physical term)

17, I stand still (a physical term) solid

62, exactly the same (play the physical process) plane mirror imaging

63, steamed bread in the drawer evaporation (a physical process)

64. Wear a small copper hat and a shiny zinc coat on your head.

Standing high on the post, it is called electricity and universal (a physical device) dry battery.

65, fuse fuse

66, dive into the enemy's heart to work (play the name of a physicist) Volt.

67. Shoot (name a physicist) while lying down.

68. Chorus (A-type physical nouns) * * * Ming

69, beyond recognition (a physical term) deformation

70. Go faster and faster (encounter a physical process) to accelerate the movement.

7 1, the tug-of-war strength of the two teams is equal (using a physical noun).

72. Workshop in Jingdezhen. (a-type physical term) magnetic field

73, black and white reverse (a physical device) film

74, a change of seven, seven in one, one for seven, seven for one. (Type a physical noun) White light

18, external force and hollow (use a physical noun) surface energy.

19, summer study (a-type physical terms) thermodynamics.

20, knockout (hit a physical noun) output

2 1, torch relay (with a physical term) heat transfer

22, two ears don't smell things outside the window (type A physical term) anti-interference.

23. I am eager for my son to come back. 24. Tri-state Changes of Emotion (Type A Physical Process)

25, dredging river (physical term) rectification 26, test (physical term) nuclear technology

27. Don't be afraid of the difficulty of attacking books (type A physical terms), and apply technology. 28. Refuse to give gifts (enter physical nouns) feedback.

29. However, I feel the harmonious heartbeat of the sacred unicorn (playing a physical noun) and mutual feeling. 30. One person sings together (playing a physical noun) * * * Ming.

3 1, the car is like running water. Ma Rulong (typed a physical noun) line frequency.

32, penetration (a physical phenomenon) capillary phenomenon 33, equal (a physical process) length measurement

34, learn from each other (a physical term) average 35, half a catty (a physical process) conversion of quality units

36. things change (a-type physical terms) mechanical movement 37. Habit and nature (A-type physical terms) inertia

38. Close (typing a physical noun) Balance of two forces 39. Get twice the result with half the effort (typing a physical noun) Efficiency

40. Passionate (a physical term) air convection 4 1, near Zhu Zhechi and near Mexico is black (a physical term) diffusion.

42, a hole (a physical phenomenon) pinhole imaging 43, indifference (a physical term) color blindness

44. Echo (hitting a physical phenomenon) 45. Reflection of light (hitting a physical phenomenon) 46. Transformation and conservation of energy (hitting a physical phenomenon) 47. Cover the sky with one hand (hit a physical phenomenon) 48. Static braking (to use a physical term) static friction

49. Same appearance (A-type physical term) Density 50. Making contradiction (A-type physical term) friction

5 1, persistent teaching, a leopard cannot change his spots (type a physical noun) inertia 52, it's useless to bring headphones to the deaf (type a physical noun) 53, we laborers have the strength (type a physical noun) to work hard 54, meet thousands of miles, and call a mile a day (type a physical noun) 55, play with the platen (type a physical noun)

58. Up and down (physical unit) card 59. Contradictory (physical term) switch

60. There is no way to recover from heavy mountains and heavy waters, and another village (by two physical processes) opens the road, with the path 6 1 and the shortcut (by a physical noun) short-circuited 75. There is one less word outside and one more word inside. There is a difference above, but there is a little less below. (Type A physical term) Synchronization 76. Say it's a clock, not a clock. It won't make a sound unless it tells the time. The dial of the watch hand is complete, and the circuit test shows that it is omnipotent. (Type A physical instrument) Multimeter 77. See through everything (type A physical instrument) microscope

78. A short bronze man with his arms in his stomach raised his hands when the charge fell. electroscope

79. Take photos of the sons of Hong (a physical unit) and Kong Ming (an optical term) and make an image.

8 1, the mind is willing but unable to do so (type an optical term) optical center 82, my adult is not here (type an electrical term).

83, hold your anger (hit a physical unit) atmospheric pressure 84, watch the bear walk, watch the footprints (physical noun 1) can 85, dare to be angry and dare not speak (physical noun 1) air 86, make trouble (physical noun 1) friction

87. Subsidiary (physical term 1) materials 88. Film processing (physical term 1) phenomenon

89. Our workers have the strength to work hard. 90. Walking with big feet, splitting into two (physical noun 1) is 9 1, meeting thousands of miles, three stars accompanying the moon (physical noun 1) has a center of gravity of 92 and a crooked neck (physical noun 1) slope.

93. Inertia (physical term 1) 94. Stopwatch (Physical Noun 2) Energy, Degree

95. My skills are really high. Everyone can't live without me. Contact every day, out of sight and out of touch.

I can't burn or eat. Guess what I am. atmospheric pressure

96. Recent photo (physical noun 1) Phenomenon 97. The pressure of the weak ruling the strong (physical noun 1)

98. Carpenter's work (physical term 1) lever 99. Fingers get an electric shock and hands feel (physical term 1) friction.

100, the weight of the "animal" who can't walk (physical equipment 1)1kloc-0/,the court tree doesn't know how many people have to do it, and it will grow old in spring. (physical term 1) Self-phenomenon 102, dark clouds crush cities and destroy (physical term 1) atmospheric pressure.

103, you don't see how the water of the Yellow River moves to the sky, (physical phenomenon) enters the ocean and never returns. Potential energy is converted into kinetic energy. Enjoy the night parking near Fengqiao from a physical point of view. A night-mooring near maple bridge by Zhang Ji, a poet in the Tang Dynasty: "On a cold night, the river wind worries about sleep. Hanshan Temple outside Gusu City, passenger ships are ringing at midnight. " It is a masterpiece that has been told through the ages. The artistic value of "a night-mooring near maple bridge" lies in that it depicts a colorful and scene-blended night parking picture, expressing an unprecedented feeling. This paper describes the environment of Qiu Jiang's night sleeping and the poet's feelings from three aspects: sight, hearing and touch.

Hanshan Temple is located in Qiao Feng Town outside Suzhou. It was built in the period of the Six Dynasties Liang (502-5 19) and has a history of over 400 years. Liang Shi used to be called Miaoliping Pagoda. During the Zhenguan period of the Tang Dynasty, Hanshan and Shide, eminent monks from Tiantai Mountain in Zhejiang Province, came here as abbots and changed their names to Hanshan Temple.

The waning moon in Cold Night is depressing; Crying is sad and makes people cry; First frost is full of air and chilly. The strange rise of Frost in the Sky. It was a natural phenomenon that autumn frost fell to the ground. But in the eyes of a poet with a sad mood, it seems that the sky is full of frost, the chill is pressing, and he is quite sad and disheartened. Writing about autumn frost and cold wind is really conveying the poet's sad mood. Especially harsh is the "black crow", which is a dangerous, ominous and unfavorable omen.

The autumn frost is heavy and the night is still. So is the phenomenon of "frost all over the sky" reasonable? We should analyze the cause of frost: in the early morning of cold season, grass leaves and clods are often covered with frost crystals. People usually call this phenomenon "frosting". There is always a solar term of "first frost" from 10 every year. We have seen snow and rain, but no one has seen frost. In fact, frost does not fall from the sky, but is formed in the air near the ground. The formation of frost is not only related to the weather conditions at that time, but also related to the nature of attached objects. When the surface temperature of the object is very low, but the air temperature near the surface of the object is relatively high, there is a temperature difference between the air and the surface of the object. If the temperature difference between the surface of an object and the air is mainly caused by the radiation cooling of the surface of the object, when the warmer air contacts the surface of the object, the air will be cooled, and when the water vapor is supersaturated, the excess water vapor will be precipitated. If the temperature is lower than 0℃, the excess water vapor condenses into ice crystals on the surface of the object, which is frost. Therefore, frost is always formed under weather conditions that are conducive to radiation cooling on the surface of objects. In addition, clouds hinder the radiation cooling of ground objects at night, and clouds in the sky are not conducive to the formation of frost. Therefore, frost often appears on clear nights, that is, when the ground radiation cools down strongly. In addition, the wind also has an effect on the formation of frost. When there is a breeze, air flows slowly over the surface of supercooled objects, constantly supplying water vapor, which is beneficial to the formation of frost. But when the wind is strong, because the air flows quickly, the time to contact the surface of cold objects is too short. At the same time, when the wind is strong, the air in the upper and lower layers is easy to mix with each other, which is not conducive to cooling down and will also hinder the formation of frost. Generally speaking, when the wind speed reaches level 3 or above, it is not easy to frost.

Therefore, frost usually forms in sunny, breezy or calm nights in cold seasons. The formation of frost is not only related to the above weather conditions, but also related to the properties of ground objects. The surface of an object cooled by radiation will frost. The easier it is for the surface of an object to dissipate heat and the faster it cools, the easier it is to frost on it. That is to say, if the surface area of an object is relatively large relative to its mass, it is easy to form frost on it. Grass leaves are very light, but they have a large surface area and are easy to frost on. In addition, the rough surface of an object is more conducive to heat dissipation than the smooth surface, so the rough surface is more prone to frost. So it is unreasonable from a physical point of view. "Midnight bell to passenger ship" highlights the characteristics of clear and melodious bell. Originally, the midnight bell came from all directions, but it sounded particularly loud and harsh to the poets who were worried about sleeping. It seemed to be directed at the fallen poets, so it felt like "getting on a passenger ship" instead of going somewhere else. Obviously, the clock is invisible and heartless, but it is affectionate and powerful, and it contains a layer of sadness that can't be turned away. It seems to be full of the world, and all the hearts are full of sadness. In this way, the bells of Hanshan Ancient Temple echoed in the night sky of Qiao Feng and penetrated into the hearts of literati. It sounded the sound of wandering, and it cut through the fog of loneliness. It even traveled through time and space, telling a touching life story to the present and the future. Can the bells of Hanshan Temple reach the banks of Qiao Feng River in the distance? Is it the poet's imagination? Studies show that temperature affects the density of air. The higher the temperature, the smaller the air density and the faster the sound travels. On the contrary, low temperature has high air tightness and low sound speed. When sound propagates in the air, it always chooses the path with low temperature. When encountering air with high temperature, the sound tends to the area with low temperature. When the temperature changes in a certain area are complicated, the sound will turn to the sky for a while and turn to the ground for a while. This will form a strange sound jump phenomenon. In the middle of the night, the temperature in the temple is even higher than that of the river in Qiao Feng, so it is not surprising that the bells of Hanshan Temple can reach the Qiaofeng River several miles away. A careful study of some Chinese idioms reveals that some Chinese idioms contain profound physical principles. Mutual Infiltration of Physics and Chinese Classroom Teaching

Knowing relevant knowledge can not only make classroom teaching lively, but also greatly stimulate and cultivate students' interest in learning, which is conducive to the breakthrough of disciplines.

Standardize, dilute discipline boundaries and strengthen knowledge infiltration. The following are some examples of Chinese idioms from a physical point of view.

1. Chinese idioms about force phenomenon

1. 1 carve a boat for a sword

China Idiom Dictionary (hereinafter referred to as the dictionary) explains this: It is said that once upon a time, a man in the State of Chu fell into the water while crossing the river.

He marked the place where the sword fell beside the boat. After the ship stopped, he went into the water from the marked place to look for the sword, but he didn't find it (

See Lv Chunqiu Cha Jin). Metaphor is stubborn, I don't know how to change with the change of the situation.

From a physical point of view, this person chose the wrong reference. Because the ship moves relative to the sword, the relative position of the ship and the sword is constantly changing.

To determine the position of the sword, we should choose objects with the same relative position as reference objects, such as stones, trees, flowers and plants on the shore.

1.2 A journey of a thousand miles is explained in the dictionary as follows: Diarrhea: water runs down rapidly. This refers to the turbulent river, rushing straight down, and later refers to the smooth writing and unrestrained momentum. From the point of view of physics, kinetic energy and potential energy can be transformed into each other. The higher the relative height, the more kinetic energy the water will transform when it falls to a lower place, and the more kinetic energy it will have, the greater its speed. Therefore, the explanation of "the river surges down" highlights the high speed of the river.

2.2 "pot: pot" is explained in the dictionary. Salary: firewood. Smoke out the firewood at the bottom of the pot. Metaphor fundamentally solve the problem. Stop boiling and Tang Yang are antonyms. From a physical point of view, boiling water is endothermic. If the firewood at the bottom of the pot is removed, the heating of the water supply will stop, and the heat cannot be absorbed from the outside, and the boiling of water will stop immediately.

2.3 Hold the snow on the fire. There is an explanation in the dictionary: Hold it on the fire: it means to warm the fire. Holding the snow to keep warm, of course it won't be warm. Metaphorically, what you do is contrary to what you want to achieve, and even if you work hard, you will not have a good result. From a physical point of view, the purpose of fire is to warm the human body, that is, to absorb heat. Holding snow to the fire, snow will not only absorb the heat of the fire source, but also absorb the heat of the human body. In this way, the human body can absorb heat and release heat. Contrary to expectations, the fact is just the opposite.

2.4 Rome was not built in a day. The dictionary explains that Rome wasn't built in a day. Metaphor things have a long history and are not formed overnight. From a physical point of view, water will freeze below 0℃. Water gives off heat in the process of freezing. Freezing for three feet must be a long-term low-temperature environment, allowing a lot of water or ice to release heat and form a lot of low-temperature ice.

3. The Chinese idiom about sound phenomenon is 3. 1, and the dictionary explains: Gai: Gai. Cover your ears and steal bells. Lv Chunqiu Self-knowledge records that a man wanted to steal a clock to go home, but the clock was too big to carry. So he smashed the clock and it made a sound. Afraid of being heard, he covered his ears with his hand. People call it "the bell that steals the ear", and later generations say "the bell that steals the ear". Metaphor is self-deception. From a physical point of view, there are three ways to reduce noise: one is to weaken from the sound source; Second, it is weakened in the way of transmission; The third is weakening in the human ear. The bell thief only noticed that it weakened in human ears and his own ears. In this way, others can still hear the bell. Obviously, it is self-deception.

3.2 In the dead of night, it is explained in the dictionary: It is late at night, and people are quiet and asleep. From a physical point of view, there is no rumbling of machines in the factory at night, no chirping of animals such as chickens, dogs, cats and ducks in the countryside, and no loud noise from people. At this time, in the ideal quiet environment of 30 dB ~ 40 dB for rest and sleep, it can be said that everything is silent.

3.3. deafening

The dictionary explains that people are going deaf. Describe the sound is particularly loud.

From the physical point of view: 30 dB ~ 40 dB is an ideal quiet environment, and more than 50dB will affect sleep and rest; It will dry after 70dB.

Interrupt the conversation and affect the work efficiency. Living in a noise environment above 90dB for a long time will seriously affect hearing and cause neurasthenia, headache and high blood pressure.

Elevated and other diseases. If you are suddenly exposed to a noise environment as high as 150dB, the hearing organ will be seriously damaged, leading to the rupture and bleeding of the eardrum.

Completely deaf in both ears. The "deafening" noise environment is of course 130 dB ~ 150 dB. In order to protect hearing, noise should be controlled not to exceed.

90 decibels.

4. Chinese idioms about light phenomenon

4. 1 It was dark.

The dictionary explains that the description is dark and there is no light at all. Also described as confused and ignorant.

From a physical point of view, the condition that healthy eyes can see objects is that there is light on people's eyes, and some of the light itself is a light source.

The light emitted; Some objects reflect sunlight, moonlight, lights and other ambient light and shoot them into people's eyes. In both cases, the human eye photographs it.

The position of the light source or object is obtained after the incident light extends in the opposite direction. If you can't see anything, of course it's black.

4.2 A leaf obstacle

The dictionary explains that leaves block the eyes. Metaphor is short-sighted and confused by local or temporary phenomena.

From a physical point of view, light travels in a straight line. Leaves are opaque objects, and light can be reflected when it hits them, so it can't hit the leaves.

People's eyes, therefore, people can't see distant objects.

It is explained in the dictionary: flowers in the mirror, the moon in the water. Metaphor can only dream of fantasy. (2) also metaphor ethereal in poetry.

Artistic conception

From the physical point of view, the flower in the mirror and the moon in the water both embody the physical principle of plane mirror imaging. Images formed by flat mirrors are all virtual images.

So the flowers seen in the mirror and the moon seen in the water are all virtual images of 1.3.