阿基米德浮力定律【英文】

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人物简介浮力定律的发现者——阿基米德

人物简介: 浮力定律的发现者——阿基米德阿基米德(Archimedes，约公元前287～公元前212年)是古希腊著名的数学家、物理学家和发明家，约公元前287年诞生于地中海西西里岛的叙拉古城(希腊的殖民城市)。

他的父亲是古希腊天文学家和数学家。

阿基米德从小深受父亲的影响，偏爱数学，很早就学习希腊著名数学家欧几里得(约公元前330～前275年)的《几何学原理》。

11岁的时候，阿基米德去当时著名的文化中心——尼罗河畔的亚历山大城学习。

在这期间，他发明了有名的阿基米德螺旋泵(一种提升水的机器)，解决了利用尼罗河水灌溉的问题，迄今埃及农村还有用以灌溉的。

回叙拉古后，他继续致力于数学和物理学的研究。

阿基米德在物理学中的主要贡献是在静力学和流体静力学方面，是理论力学的创始人。

他在《论平面图形的平衡》一书中，证明了物体的重量之比等于距离的反比的杠杆定律。

据说阿基米德发现杠杆定律以后，在写给叙拉古国王亥厄洛的信中得意地说：“我找到了把力放大的办法”，“只要给我一个支点和立足点，我就能移动地球”。

当时，亥厄洛为埃及王托拉密造了一艘大船。

下水那天，许多人围着这艘船团团转，费了九牛二虎之力也无法推船下水。

国王召来了阿基米德，请他想想办法。

阿基米德欣然接受任务，精心设计了一个杠杆滑轮系统。

在隆重的推船下水仪式上，阿基米德从容地把绳子系到船上，另一端交给国王。

只见国王轻轻地一拉，魔术般的奇迹出现了：大船缓缓地移动到了水里。

阿基米德有许多发现，其中最著名的要算浮力定律——阿基米德定律了。

关于这个定律的发现过程，历史上流传着一个发人深思的故事：亥厄洛在叙拉古称王之后，为了炫耀自己的尊贵，命令工匠为他制作一顶金王冠。

到了规定日期，工匠送来了金光灿灿的王冠，重量恰好和交付的黄金相同，亥厄洛国王十分满意。

但后来有人告诉他，工匠在王冠里掺了假。

国王感到受了欺骗，但要想知道真相就得将王冠毁坏，否则就没有办法把事实的真相揭露出来，于是命令阿基米德想办法查明真相又不得损坏王冠。

阿基米德洗澡时发现浮力定律的故事

阿基米德洗澡时发现浮力定律的故事1. 引言在科学史上，有许多伟大的发现和突破都源自于意外的事件或奇妙的巧合。

阿基米德（Archimedes）是古希腊最著名的数学家和物理学家之一，他的发现对于我们理解浮力定律和静力学原理具有重要意义。

在阿基米德的传奇故事中，他洗澡时发现了浮力定律，这个故事不仅具有趣味性，更深刻地提示着我们在平凡中发现非凡的可能性。

2. 阿基米德的洗澡故事据传说，在公元前三世纪的古希腊，阿基米德是一位数学家和物理学家，他为了解决一个问题而苦苦思索。

当时，一位国王命令制作他的王冠，并要求确保王冠是纯金的。

然而，国王对于被人欺骗使用伪金的担忧使阿基米德陷入了困境。

一个晴朗的日子，阿基米德心事重重地走进自己家中的浴景，并开始沉思。

当他将自己浸入水中，他突然发现在浴缸里的水位上升了。

这个简单的观察让他产生了极大的兴趣，他开始仔细地研究水的浮力以及物体在水中的行为。

3. 浮力定律：水的力量阿基米德的洗澡故事启发了他关于浮力定律的研究。

根据浮力定律，当一个物体浸入液体中时，液体对该物体所施加的向上的浮力等于物体排开的液体的重量。

这意味着如果物体的密度小于液体的密度，它将浮在液体表面上；反之，如果物体的密度大于液体的密度，它将沉没到液体中。

4. 阿基米德的原理：物体的浮力与排开的液体重量相等根据阿基米德的洗澡故事，我们可以推知，当阿基米德身体浸入水中时，水会向外扩散一定的体积，即体积增加。

这个通过浮力定律阐明的原理称为阿基米德原理。

根据阿基米德原理，阿基米德所受的浮力等于排开的水的重量，而由于浸入水中的体积增加，所受的浮力比平时要大。

5. 对于浮力定律的应用与理解浮力定律在许多日常生活中都起到了重要作用。

一个常见的应用是船只的浮力原理，如船只的设计必须符合阿基米德的原理以确保船只能浮在水面上。

浮力定律也帮助人们理解为什么气球在充满气体时会浮在空中，为建筑物的基础设计提供指导，甚至在生活中选购水果时，我们可以通过浸入水中的方法来判断水果的新鲜程度。

The story of Archimedes

The story of Archimedes(287-212 B.C.).Archimedes of whole life diligence good learn, with concentration dedicate a body at science, be loyal to a motherland and be subjected to respect of people with speak favorably.Archimedes once detection lever laws with is assign name to with his name of Archimedes' bine make use of these laws a design variety machine, behavior people, contribute efforts to the motherland.Concerning he usually of detailed circumstance, have already can't research.But concerning his invention creation with protect the story of motherland, spread up to now.二千一百九十年前，在古希腊西西里岛的叙拉古国，出现一位伟大的物理学家。

他叫阿基米德（公元前287——212年）。

阿基米德的一生勤奋好学，专心一志地献身于科学，忠于祖国，受到人们的尊敬与赞扬。

阿基米德曾发现杠杆定律和以他的名字命名的阿基米德定律。

并利用这些定律设计了多种机械，为人民、为祖国服务。

关于他生平的详细情况，已无法考证。

但关于他发明创造和保卫祖国的故事，却流传至今。

杠杆定律的确立人们从远古时代起就会使用杠杆，并且懂得巧妙地运用杠杆。

阿基米德洗澡发现了浮力定律作文

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阿基米德的浮力定律

阿基米德的浮力定律阿基米德的浮力定律是描述物体在液体中所受浮力的规律，由古希腊物理学家阿基米德提出。

该定律认为，在一个静止的液体中，浸没在其中的物体所受到的浮力大小等于液体中所排斥的重量。

这个定律的形式化表述是：浮力等于物体排开液体的重量。

这个浮力的大小取决于液体的密度、物体的体积和受力对象所处的深度。

阿基米德的浮力定律是许多实际应用的基础，如船只的浮力，潜水员的浮力调节，漂浮在水面上的物体等。

下面，我将从实际生活中的例子来探讨阿基米德浮力定律的应用。

1. 船只的浮力船只的设计利用了阿基米德的浮力定律。

船只的体积较大，当它浸没在水中时，其所受到的浮力等于经水排开的重量。

根据阿基米德的定律，浮力大于船只自身的重量，船只就能浮在水面上。

这样，人们可以利用船只在水上航行，进行运输和旅行。

2. 潜水员的浮力调节潜水员在深水中进行工作或探索时，需要根据实际需求调节自身的浮力。

他们使用气瓶中的空气来调节浮力。

当潜水员需要上浮时，他们会往气瓶中注入更多的空气，增加所受到的浮力，从而上浮到水面；当潜水员需要下潜时，他们会释放部分空气，减少浮力，使自己能在水中保持稳定的深度。

3. 水上漂浮的物体阿基米德的浮力定律也可以解释为什么一些物体可以漂浮在水面上。

例如，一个木块会浮在水中，因为其密度小于水的密度。

根据阿基米德定律，木块所受到的浮力等于排开的水的重量，大于自身的重量，所以它能浮在水面上。

而相反，如果一个物体的密度大于水的密度，那么它将下沉到水底。

除了这些例子，阿基米德的浮力定律在许多其他领域也有广泛的应用。

例如，工程设计中需要考虑建筑物的浮力以确保其稳定性；研究水下潜艇的设计需要考虑浮力的调节；在油井开采过程中，需要考虑到地下液体的浮力等等。

总结起来，阿基米德的浮力定律是一个重要的物理定律，它描述了物体在液体中所受的浮力等于排斥液体的重量。

这个定律在船舶设计、潜水员操作以及物体漂浮等方面都有实际应用。

理解和应用这个定律，可以帮助我们更好地认识自然界中的现象，并在实际生活中做出合理的决策和设计。

阿基米德发现浮力的小故事-英语话剧

A story of Archimedes（旁白）：The king asked a goldsmith to make a crown of pure gold. After the goldsmith finished the crown, the king doubt that the crown is not pure, but he didn't know how to prove his guess. So he asked Archimedes to do this thing.（国王）The king: Archimedes, I have heard of that you are a clever man.（阿基米德）Archimedes: Your majesty, thanks for your admiration.The king: You come to close me. Now I will give you a chance to prove your wisdom. If you success, I will reward you a lot of money. But if you fail, you will have to die.Archimedes( be afraid of and sweat): (he sweat his face and say) Your majesty, I will try my best to do everything you ordered. The king: I will give you a week to check out wether this new crown is pure gold or not.Archimedes: Yes.（旁白）After Archimedes went home. Archimedes thought for six days. But he still had no ideas about that. One day, Archimedes went to bathhouse to take a bath. When he stepped into the bathtub, some water overflow from the basin edge. Hestared at the water flow over the edge, Suddenly he shout. Archimedes: Haha, I got it, I got it. （阿基米德手舞足蹈的样子）I know how to do with the new crown.（旁白）Then Archimedes rush out the bathhouse in naked. The common people one: Wow, this man is crazy. He is mad. The common people two: Oh, my god. He doesn't wear anything. There is must something wrong with his head.（旁白）The seventh day, Archimedes come to the palace to meet the king.The king: Archimedes, today is the last day. Now, I think you have got your way to solve the problem.Archimedes: Yes, Your majesty, I have already know how to deal with this matter.The king: OK, let's just start you test.Then Archimedes did his test and told the king his result. Archimedes: Your majesty, after my test, I have know that the new crown is not made of pure gold, but made of both gold and sliver.The goldsmith: this can not be true. I have thought there is no one will discovery this thing.The king: 国王脸色变了，很愤怒的样子然后金匠跪在地上求国王饶他不死，说道：Your majesty，please do not kill me、、、、、、、、The king（对士兵说道）: drageed out and kill him.The king: 然后对阿基米德说道：Oh, my dear Archimedes, you are so clever. Congratulations. I will compliance with commitment to reward you lots of money.Archimedes: Your majesty, many thanks.里面有的情节不需要说话，话剧主要靠表情和动作把你的意思演出来，台词只是起辅助作用的。

浮力知识点归纳总结英文知识

浮力知识点归纳总结英文知识1.Pressure:The force acting vertically on the surface of an object is called pressure.2.Pressure:The pressure on the unit area of an object is called pressure.3.Pressure formula:P=F/S,where the unit of p is Pascal,abbreviated as Pa,1 Pa=1 N/m2,and the unit of pressureF is N;Force bearing area S unit:m24.Pressure increasing method:(1)S remains unchanged,F↑;(2)F remains unchanged,S↓(3)Set F↑,S↓at the same time.The pressure reduction method is the opposite.5.The reason for the liquid pressure is that the liquid is subject to gravity.6.The characteristics of liquid pressure:(1)liquid has pressure on the bottom and wall of the container,(2)liquid has pressure in all directions;(3)The pressure of liquid increases with the depth.At the same depth,the pressure of liquid in all directions is equal;(4)The pressure of different liquids is also related to the density.7.*Calculation formula of liquid pressure:（ρIs the liquid density,in kg/m3;G=9.8 N/kg;H is the depth,which is thevertical distance from the liquid free surface to a point inside the liquid,in meters.)8.According to the liquid pressure formula:it can be obtained that the pressure of the liquid is related to the density and depth of the liquid,but not to the volume and mass of the liquid.9.The experiment proving the existence of atmospheric pressure is the Madelberg Hemisphere Experiment.10.The cause of atmospheric pressure:the air is produced by gravity,and the atmospheric pressure decreases with the increase of height.11.The experiment to determine the atmospheric pressure is the Torricelli experiment.12.The instrument for measuring atmospheric pressure is:mon barometers include mercury barometer and aneroid barometer(metal box barometer).13.Standard atmospheric pressure:equal to 760 mm of mercury.1 Standard atmospheric pressure=760 mm Hg=1.013×105 Pa=10.34 m water column.14.The relationship between boiling point and pressure:the boiling point of all liquids decreases when the pressure decreases,and increases when the pressure increases.15.The relationship between fluid pressure and flowvelocity:the higher the flow velocity,the lower the pressure;The lower the velocity,the higher the pressure. 1.Buoyancy:All objects immersed in liquid are subject to the vertical upward force of the liquid.This force is called buoyancy.The direction of buoyancy is always vertical upwards.(Objects are also buoyant in the air)2.Conditions of object sinking and floating:(initially immersed in liquid)Method 1:(specific buoyancy and object gravity)(1)F floats G,floats up(3)F floats=G,floats or floats Method 2:(Specific density of object and liquid)(1)F floats G,floats up(3)F floats=G,floats.(Will not float) 3.The cause of buoyancy:the object immersed in the liquid is subject to the upward and downward pressure difference of the liquid.4.Archimedes principle:an object immersed in a liquid is subject to upward buoyancy,which is equal to the gravity of the liquid it displaces.(The buoyancy of an object immersed in gas is equal to the gravity of its expelled gas)5.Archimedes principle formula:6.The buoyancy calculation methods include:(1)Weighing method:F floating=G-F,(G is the weight of theobject,and F is the reading of the spring scale when the object is immersed in the liquid)(2)Pressure difference method:F floating=F upward-F downward(3)Archimedes principle:(4)Balance method:F floating=G object(suitable for floating and suspension)7.Buoyancy utilization(1)Ship:hollow material with density greater than water,so that it can discharge more water.This is why ships are made.(2)Submarine:sink and float by changing its gravity.(3)Balloon and airship:A gas filled with less density than air.。

关于阿基米德的简介英文

关于阿基⽶德的简介英⽂阿基⽶德，古希腊哲学家、数学家、物理学家，静态⼒学和流体静⼒学的奠基⼈，下⾯是店铺为你整理的关于阿基⽶德的简介英⽂，希望对你有⽤! 阿基⽶德简介 Archimedes (287 BC - 212 BC), the founder of the great ancient Greek philosopher, Wikipedia scientist, mathematician, physicist, mechanist, static mechanics and hydrostatic mechanics, and enjoyed " The father of mechanics, "the reputation of Archimedes and Gauss, Newton tied for the world's three mathematicians. Archimedes once said, "Give me a fulcrum and I can pry the whole earth." Archimedes established the basic principles of static and hydrostatic mechanics. Giving a number of ways to find the center of gravity of the geometric figure, including the center of gravity of a pattern surrounded by a parabola and its net parallel lines. Archimedes proves that the buoyancy of the object in the liquid is equal to the weight of the liquid it drains, and this result is called the Archimedes principle. He also gives a positive parabolic rotating body floating in the liquid balance and stability criteria. Archimedes invented the mechanical water diversion with water, can affect the full load of the lever pulley machinery, can explain the eclipse, eclipse phenomenon of the Earth - the moon - the sun running model. But he believes that mechanical invention than pure mathematics low, and therefore did not write this work. Archimedes also uses constant segmentation to find the volume of the ellipsoid, rotating paraboloid, etc. This method already has the embryonic form of integral calculation. 阿基⽶德⼈物⽣平 People born In 287 BC Archimedes was born in a small village near Syracuse, Sicily, who was born in the nobility and had a relationship with the King Hieron of Syracuse. The family was very rich. Archimedes' father is an astronomer and mathematician, knowledgeable and humble. Archimedes means the great thinker, Archimedes influenced by the family, from an early age on mathematics, astronomy, especially the ancient Greek geography had a strong interest. At the time of the birth of Archimedes, the splendid culture of ancient Greece was gradually declining, and the economic and cultural center gradually moved to Alexandria in Egypt; but on the other hand, the emerging Roman republic on the Italian peninsula was constantly expanding its forces; North Africa also has a new national Carthage rise. Archimedes is growing in the era of this new and old forces, and Syria ancient city has become a lot of forces fighting place. Study experience In 267 BC, when Archimedes was eleven years old, Archimedes was sent by his father to Alexandria, Egypt, to follow Euglian's students, Elatase and Cannon. Alexander City is located in the mouth of the Nile, was the world's knowledge, cultural and trade center, scholars gathered, talent pool, was the world as "wisdom of the capital." The study of literature, mathematics, astronomy and medicine is very developed. Archimedes in Alexandria followed many famous mathematicians to study, including the famous geometric master - Euclid, Archimedes studied and lived here for many years, he eclectic and the ancient and ancient Greek culture Heritage, the subsequent scientific career has made a significant impact, laid the foundation of Archimedes in the future of scientific research. Defend the motherland In 218 BC the Roman Empire and the North African Carthaginian Empire broke out in the second Punic War. Sullivan in Sicily has always been to trust in Rome, but in 216 BC Carthage defeated the Roman army, Syracuse's new king (Haiwei Long II's grandson successor), immediately see the rudder and Carthage alliance , The Roman Empire then sent General Marcella led the sea from the sea and land at the same time attack Syria ancient. Syria and the Roman Empire between the war, is the age of Archimedes, the Roman army's highest commander Marcella led the Roman army surrounded the city he lived, also occupied the harbor.Archimedes did not agree to war, but had to do their duty to defend their own country. Archimedes saw the land of critical, protect the country's sense of responsibility to make him up against the enemy, so Archimedes brains, day and night invented the enemy weapons. ● catapult and crane Archimedes used a leveraged principle to create a rubble called a stone crossbow, a large boulder to the Roman army warships, or use the transmitter to the spear and stone to the Roman soldiers, all close to the wall of the enemy , Can not escape his flying stone or javelin ... ... Archimedes also invented a variety of weapons, to block the progress of the Roman army. According to some later records, when he made a huge crane, the enemy's warships can be suspended in the air, and then fell heavily to make the warships in the water crushed. ● Mirror condenser One day Syria ancient city was attacked by the Roman army, and Syria ancient city of young adults and soldiers went to the front line, the city only left the elderly, women and children, at a critical moment. At this time, Archimedes came out for their own country. Archimedes let the women and the children each come out of their own mirrors to come to the coast, let the mirror reflect the strong sunshine to the enemy's main sail, the reflection of the thousands of mirrors gathered in the sail At one point, the sails burned up, the fire taking advantage of the wind, the more burning the more prosperous, the Romans do not know the details, that Archimedes and invented a new weapon. He fled and fled. These weapons get the Roman army panic, everyone is afraid, even the general Marcelas are laughing admitted: "This is a Roman fleet and Archimedes one war", "Archimedes is myth of the hundred Hand giant ". The death of a great man In 212 BC, the ancient Roman army invaded Syracuse, Archimedes was killed by Roman soldiers, at the age of seventy five years old. Archimedes' remains were buried in Sicily, and the tombstone was carved with a cylinder of the ball to commemorate his outstanding contribution to geometry. Verse 1: The Roman soldiers broke into the residence of Archimedes and saw an old man digging on the ground for geometric figures. Archimedes told the soldiers that you would wait to kill me, and I could not leave the world with an incomplete formula He did not wait for him to finish, and the soldier killed him. He died with regret. Verse 2: A Roman soldier suddenly appeared before him, ordered him to go to Marcella, was rejected by Archimedes, and Archimedes died under the sword of the soldier. Version 3: Archimedes sat next to the incomplete stone wall, drawing a geometric figure on the sand. A Roman soldier ordered Archimedes to leave, and he made a gesture arrogantly, "Do not break my circle!" The Roman soldiers were furious and immediately threw the old scientist with a knife Archimedes. Version 4: Roman soldiers broke into the residence of Archimedes and saw an old man drawing the geometric problems on the ground of his own house. Archimedes said, "Go away, do not move my picture!" Very angry, then pull out the knife, toward the Archimedes who stabbed. No matter how the death of Archimedes, the most regrettable is that the Roman army commander Marcella, Marcelas will kill Archimedes soldiers as murderers to be executed, he for the Akmami Germany held a grand funeral, and built a mausoleum for Archimedes, in the tombstone according to Archimedes's last wish, engraved with the "cylindrical ball" this geometric graphics. 阿基⽶德个⼈成就 Buoyancy principle The principle of buoyancy is that the buoyancy obtained by the object in the liquid is equal to the weight of the liquid it discharges, that is, F = G (where F is the buoyancy of the object and G is the gravity of the liquid discharged from the object). This type of deformation can be obtained (where ρ is the discharge of liquid density, g for the local gravity acceleration, V for the discharge of liquid volume) Legend of Syracuse Nang Wang for craftsmen for him to do a gold crown. But after doing well, the king suspected of the craftsmen to do the Golden Delicious is not pure gold, craftsmen privately swallowed the gold, but can not destroy the crown, and this golden crown and the original gold hand to the gold as heavy. The problemstumped the king and the ministers. As a minister suggested, the king invited Archimedes to test the crown. At first Archimedes did nothing to the problem. One day he took a bath at home, and when he sat into the tub, he saw the water spilled, and suddenly thought that the size of the golden crown could be determined by measuring the displacement of the solid in the water. He jumped out of the bath with excitement, and even the clothes were reluctant to wear and ran out, shouting "Eureka! Eureka!" (Ερηκα, meaning "found".) After a further experiment, he came to the palace, he put the crown and the same weight of pure gold on the two pots filled with water, compared the two pots of overflowing water, found to put the crown of the basin overflow Water is more than another pot. This shows that the crown of the volume of the same weight than the weight of pure gold, the density is not the same, so that the crown mixed with other metals. The significance of this test is far greater than the detection of goldsmiths to deceive the king, Archimedes found buoyancy law (Archimedes principle): objects in the liquid obtained buoyancy, equal to the weight of its discharge of liquid. (That is, the well-known drainage method) Lever principle Lever principle: to meet the following three points of the system, basically is the lever: fulcrum, force point, force point. Leverage principle is also called "leverage balance": to balance the lever, the two forces acting on the lever (the product of the force and arm) must be equal. That is: power × power arm = resistance × resistance arm, with the formula can be expressed as: Haiwei Long Wang and encountered a difficult problem: the king for the Egyptian Ptolemy king made a ship, because too too heavy, the ship Can not put into the sea, the king said to Archimedes: "You even the earth are lifted up, put a boat into the sea should be no problem? Archimedes called craftsmen around the ship installed a set of Beautifully designed tackle and leverer. Archimedes called more than 100 people in front of the ship, grabbed a rope, he let the king affect a rope, the ship actually slowly slipped into the sea. King unusually happy, publicly announced: From now on, I ask everyone, whatever Archimedes say, trust him! Mechanical application Archimedes for mechanical research from his time in Alexandria school day, one day Archimedes in the long drought on the Nile side of the walk, see the farmers pouring water quite hard, after thinking he invented a The use of spiral in the water pipe in the rotation of the water to suck up the tools, later people call it "Archimedes spiral water extractor." Egypt has been up to two thousand years after the modern, and some people use this device. This tool became the ancestor of the later propeller. Archimedes attaches great importance to the test, life design, manufacture a lot of equipment and machinery, it is worth mentioning that there are weight pulley, irrigation machine, water machine and military use of rubble and so on. At the time of Europe, in the engineering and daily life, often use some simple machinery, such as: screws, tackles, levers, gears, etc., Archimedes spent a lot of time to study, found the "lever principle" and "torque" Concept, for the regular use of tools to create machinery in the Archimedes, the theory applied to the actual life is easy. Archimedes is likely to be the most thorough understanding of the principles and the use of machinery in the world at that time. Archimedes and Athens scientists have a distinct difference, that is, he attaches importance to the rigor of science, accuracy, requirements for each question are accurate and logical proof; also attaches great importance to the practical application of scientific knowledge. Master of Mathematics Archimedes also has a very brilliant achievement in mathematics, especially in geography. Archimedes 'mathematical thought contains calculus, Archimedes' "methodology" has been "very close to modern calculus", there are mathematical "infinite" advanced research, throughout the whole story is how Mathematical model for physical application. What he lacks is that there is no limit concept, but its thought is extended to the 17th century mature mature infinite analysis of the field, to inform the birth of calculus. Archimedes made Euclid's idea of approaching ideas. He uses the "approximation method" to calculate the sphere area, the volume of the ball, the parabola, the elliptical area, the later mathematicians based on this "approach" to develop into modern "calculus". Archimedes also use the rounded method to obtain the value of π between 3.14163 and 3.14286. In addition, he calculated that the surface area of the ball is four times the area of the largest circular area, and the volume of the cylindrical sphere is two thirds of the volume of the cylinder. The theorem is engraved on his tombstone. Archimedes studied the nature of the spiral curve, the current "Archimedes spiral" curve, is to commemorate him named. In addition, he in the "sand count" a book, he created a set of large numbers of methods, simplifying the way of counting. Archimedes' geometric work is the culmination of Greek mathematics. He combined Euclid's strict reasoning with Plato's rich imagination and harmony, reaching the realm of perfection, so that it would be done by Kepler, Cavalieri, Fermat, Newton, Leibniz and others continue to cultivate the calculus is becoming more perfect. " Astronomical research Archimedes developed a cross angle instrument for astronomical measurements and made an instrument for measuring the sun's direction to the earth. Archimedes also used hydraulic production of a planetarium, the ball on the day, month, stars, five planets. According to records, the planetarium not only run accurate, even when the lunar eclipse, solar eclipse can be predicted. Archimedes also believes that the earth may be round. In his later years Archimedes began to doubt the doctrine of the Earth Center and speculated that the earth could turn around the sun, and this conjecture was raised until the Copernican era.关于阿基⽶德的简介英⽂。

阿基米德浮力定律实验概况

阿基米德浮力定律实验概况
阿基米德浮力定律实验主要是为了探究物体在液体中所受的浮力与其排开的液体体积之间的关系。

这个实验是古希腊数学家、物理学家阿基米德所进行的一项重要研究，为浮力学说奠定了基础。

在实验过程中，阿基米德首先会将一个已知体积和质量的物体完全或部分地浸入液体中，并测量物体所受到的浮力。

接着，他会收集并测量被物体排开的液体的体积和质量。

通过对比这些数据，阿基米德发现物体在液体中所受的浮力等于它所排开的液体的重量。

这就是著名的阿基米德浮力定律。

这个实验不仅揭示了物体在液体中的浮沉规律，也为后来的流体力学和船舶设计等领域提供了重要的理论依据。

例如，船舶设计师可以利用阿基米德浮力定律来计算船舶的排水量和所需的浮力，从而确保船舶的安全航行。

此外，阿基米德浮力定律在日常生活中也有广泛的应用。

比如，人们在水上游泳或潜水时，会感受到浮力的作用；在测量不规则物体的体积时，也可以利用浮力的原理来进行计算。

总的来说，阿基米德浮力定律实验是一项具有重要意义的研究，它不仅揭示了物体在液体中的浮沉规律，也为科学研究和实际应用提供了有力的支持。

阿基米德原理是什么

阿基米德原理是什么阿基米德定律的内容是：浸在液体里的物体受到向上的浮力作用，浮力的大小等于被该物体排开的液体的重量。

阿基米德（Archimedes）定律力学中的基本原理之一。

阿基米德原理是什么适用于液体和气体。

阿基米德原理适用于全部或部分浸入静止流体的物体，要求物体下表面必须与流体接触。

如果物体的下表面并未全部同流体接触，例如，被水浸没的桥墩、插入海底的沉船、打入湖底的桩子等，在这类情况下，此时水的作用力并不等于原理中所规定的力。

如果水相对于物体有明显的流动，此原理也不适用。

鱼在水中游动，由于周围的水受到扰动，用阿基米德原理算出的力只是部分值。

这些情形要考虑流体动力学的效应。

水翼船受到远大于浮力的举力就是动力学效应，所循规律与静力学有所不同。

阿基米德发明了什么力学方面：1、在总结了关于埃及人用杠杆来抬起重物的经验的基础上，阿基米德系统地研究了物体的重心和杠杆原理。

提出了精确地确定物体重心的方法，指出在物体的中心处支起来，就能使物体保持平衡；同时，他在研究机械的过程中，发现并系统证明了阿基米德原理（即杠杆定律），为静力学奠定了基础。

此外，阿基米德利用这一原理设计制造了许多机械。

2、他在研究浮体的过程中发现了浮力定律，也就是有名的阿基米德定律。

几何学方面：阿基米德的数学成就在于他既继承和发扬了古希腊研究抽象数学的科学方法，又使数学的研究和实际应用联系起来。

1、阿基米德确定了抛物线弓形、螺线、圆形的面积以及椭球体、抛物面体等各种复杂几何体的表面积和体积的计算方法。

在推演这些公式的过程中，他创立了“穷竭法”，类似于现代微积分中所说的逐步近似求极限的方法。

2、他是科学的研究圆周率的第一人。

他提出用圆内接多边形与外切多边形边数增多、面积逐渐接近的方法求圆周率。

他求出了圆周率大小范围为：223/71<π<22/7。

3、面对古希腊繁冗的数字表示方式，阿基米德还首创了记大数的方法，突破了当时用希腊字母计数不能超过一万的局限，并用它解决了许多数学难题。

Archimedes and Brewing Effect(酝酿效应)

Brewing effect
日常生活中，我们常常会对一个难题束手无策，不知从何入手，这时思维就进入了“酝酿阶段”。直到有一天，当我们抛开面前的问题去做其他的事情时，百思不得其解的答案却突然出现在我们面前，令我们忍不住发出类似阿基米德的惊叹，这时，“酝酿效应”就绽开了“思维之花”，结出了“答案之果”。古代诗词说“山重水复疑无路，柳暗花明又一村”正是这一心理的写照。
所谓酝酿效应，又称为直觉思维，是指反复探索一个问题的解决而毫无结果时，把问题暂时搁置几其解的问题往往一下子便找到解决办法。
意大利美学家克罗齐指出：人的知识有两种，一种是直觉的，一种是逻辑的，前者是“从想像得来的”，后者是“从理智得来的”。直觉是人脑对于对象中隐含的整体性、次序性、和谐性的某种迅速而直接的洞察和领悟，它可以引导我们绕过不可逾越的高山，曲径通幽，达到柳暗花明的境界。
日常生活中，我们常常会对一个难题束手无策，不知从何入手，这时思维就进入了“酝酿阶段”。直到有一天，当我们抛开面前的问题去做其他的事情时，百思不得其解的答案却突然出现在我们面前，令我们忍不住发出类似阿基米德的惊叹，这时，“酝酿效应”就绽开了“思维之花”，结出了 “答案之果”。古代诗词说“山重水复疑无路，柳暗花明又一村”正是这一心理的写照。
美国化学家普拉特和贝克等人也都讲述过类似的经历。例如，普拉特和贝克写道：“摆脱了有关这个问题的一切思绪，快步走到街上，突然，在街上的一个地方———我至今还能指出这个地方———一个想法仿佛从天而降，来到脑中，其清晰明确犹如有一个声音在大声喊叫。我决心放下工作，放下有关工作的一切思想。第二天，我在做一件性质完全不同的事情时，好像电光一闪，突然在头脑中出现了一个思想，这就是解决的办法，简单到使我奇怪怎么先前竟然没有想到。”

阿基米德定律

阿基米德定律（Archimedes law）是物理学中力学的一条基本原理。

浸在液体（或气体）里的物体受到向上的浮力作用，浮力的大小等于被该物体排开的液体的重力（“Any object placed in a fluid displacesits w eight;an immersed object displaces its volume.”）。

其公式可记为F浮=G排=ρ液·g·V排液。

浸在静止流体中的物体受到流体作用的合力大小等于物体排开的流体的重力。

这个合力称为浮力。

这就是著名的“阿基米德定律”(Archimedes)，又称阿基米德原理[1]，浮力原理。

该定理是公元前200年以前古希腊学者阿基米德(Archimedes, 287-212 BC)所发现的。

浮力的大小可用下式计算：F浮=ρ液（气）gV排。

公式数学表达式：F浮=G排=ρ液（气）·g·V排。

单位:F浮———牛顿,ρ液（气）——kg/m³;,g——N/kg,V排———m³;.浮力的有关因素：浮力只与ρ液，V排有关,与ρ物(G物),深度无关，与V物无直接关系。

当物体完全浸没在液体或气体时，V排=V物；但物体只有一部分浸入液体时，则V排<V 物。

适用范围范围：液体,气体.根据浮力产生原因——上表下表面的压力差:p=ρ液gh1,=ρ液（气）gh2=ρ液g(h1+l).F浮=F向上-F向下=pl2-l2=ρ液g[h1-(h1+l)]l2=ρ液·g·V排。

例题[例1]有一个合金块质量10kg，全部浸没在水中时，需用80N的力才能拉住它，求：此时合金块受到的浮力多大？[分析]根据G=mg可得出金属块重力，浮力大小是重力与拉力的差。

[解答]G=mg=10kg×9.8N/kg=98NF浮=G-F拉=98N-80N=18N答：金属块受到的浮力是18N。

阿基米德原理内含flash动画ppt课件.ppt

实验步骤
• 1、先称出物块和干燥的小桶在空气中的重。
• 2、把物体浸入液体中，测出物体所受的浮力，并且用小桶收集物体所排开的液体。
• 3、测出被排开的液体所受的重力。
从使用情况来看，闭胸式的使用比较广泛。敞开式盾构之中有挤压式盾构、全部敞开式盾构，但在近些年的城市地下工程施工中已很少使用，在此不再说明。
从使用情况来看，闭胸式的使用比较广泛。敞开式盾构之中有挤压式盾构、全部敞开式盾构，但在近些年的城市地下工程施工中已很少使用，在此不再说明。
收集排开的液体方法：
溢水杯
或
从使用情况来看，闭胸式的使用比较广泛。敞开式盾构之中有挤压式盾构、全部敞开式盾构，但在近些年的城市地下工程施工中已很少使用，在此不再说明。
(1)分析图B、C、D，说明浮力大小跟有关．
(2)分析图，说明浮力大小跟液体密度有关．
(3)物体完全浸没在煤油中所受的浮力是 N．
(4)小明还想探究浮力大小与物体形状是否有关，请你简述实验方法．
从使用情况来看，闭胸式的使用比较广泛。敞开式盾构之中有挤压式盾构、全部敞开式盾构，但在近些年的城市地下工程施工中已很少使用，在此不再说明。
从使用情况来看，闭胸式的使用比较广泛。敞开式盾构之中有挤压式盾构、全部敞开式盾构，但在近些年的城市地下工程施工中已很少使用，在此不再说明。
有一天… … …
阿基米德由澡盆溢水联想到 … … …
一连几天，阿基米德闭门谢客，反覆琢磨，因为实心的金块与镂空的王冠外形不同，不砸碎王冠铸成金块，便无法求其体积，也就无法验证是否掺了假．他绞尽脑汁也不得其解．

阿基米德原理的详解和应用

阿基米德原理的详解和应用1. 什么是阿基米德原理阿基米德原理又叫阿基米德浮力定律，是基于阿基米德提出的物理定律。

它表明：浸入液体中的物体所受浮力等于该物体排开的液体的重量。

简单来说，当物体浸入液体中时，它会受到一个向上的浮力，这个浮力的大小与物体排开的液体的重量相等。

阿基米德原理是描述物体在液体中浮沉的定律，对于理解浮力、浮力平衡以及物体浮沉的条件具有重要意义。

2. 阿基米德原理的公式阿基米德原理可以用以下公式表示：•Fb = ρ液体 * V * g其中： Fb 表示浮力的大小，单位是牛顿（N）；ρ液体表示液体的密度，单位是千克/立方米（kg/m³）； V 表示物体在液体中排开的液体体积，单位是立方米（m³）； g 表示重力加速度，单位是米/秒²（m/s²）。

根据阿基米德原理的公式，我们可以计算出物体所受的浮力大小。

3. 阿基米德原理的应用3.1 物体浮沉的条件根据阿基米德原理，物体浮沉的条件可以总结为：•当物体的体积密度＜液体的密度时，物体将浮在液体表面；•当物体的体积密度＝液体的密度时，物体将悬浮在液体中；•当物体的体积密度＞液体的密度时，物体将沉没在液体中。

3.2 浮力的应用阿基米德原理中的浮力在许多日常生活和工程应用中具有重要作用：•船只的浮力：船只利用阿基米德原理中的浮力实现浮在水面上，从而能够承载货物和乘客；•潜水：潜水器利用浮力来平衡自身的重量，使潜水人员能够在水下工作；•水下潜艇：潜艇可以调节自身的浮力，来控制在水中的深度；•热气球：热气球的浮力来自于加热气体的热胀冷缩效应，使得热气球能够飞行在空中；•水果的浮力：当水果浮在水中时，可以通过测量水果的浮力来确定其密度，以此判断水果的成熟度。

3.3 浮力的计算利用阿基米德原理，我们可以计算出物体所受的浮力。

下面举一个具体的例子：假设有一个木块，它的体积为0.1立方米，密度为600千克/立方米。

阿基米德原理PPT

m铜= m铝
ρ铜>ρ铝
V铜<V铝
铜铝
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（５）如图是四个体积相同而密度不同的小球在水中静止时的情况，试比较他们所受浮力的大小
F A浮＜F B浮＜F C浮=F D浮
（６）完全相同的三个物体A、B、C，在水中静止时如图所示，试比较弹簧测力计的示数F1、F2、F3的大小
F1＞F2=F3
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已知：ρ水=1.0×103kg/m3，g=9.8N/kg V排=1000cm3=10-3m3
求：F浮解：F浮= ρ水gV排
=1.0×103kg/m3 ×9.8 N/kg×103m3 =9.8N 答：这物体受的浮精品力课件是9.8N。
【第二关】
1.比较下列物体受的浮力（1）体积相同的铜、铁、铝浸没水中
F浮=G排=m排液g=ρ液gV排
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3．单位：
F浮＝ρ
·g · V 液 N
Kg/m3 N/排Kg m3
4．适用条件: 适于液体、气体．
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二、对原理的理解
（1）物体“浸在液体里”包括 “全部浸入（即浸没）”和“部分浸入”两种情况。
不论物体是浸没还是部分浸入在液体里都受到浮力。对于同一物体而言，浸没时受到的浮力大，部分浸入时受到的浮力小，而且浸入的体积越小，所受的浮力也越小。
2.一切浸入液体中的物体都受到浮力
的作用。F浮=G-F（称重法）
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复习
复习浮力测量的方法：
1.称重法：F浮=G-F 2.压力差法：F浮=F向上-F向下 3.漂浮（悬浮）法： F浮=G
阿基米德原理
实验探究
探究浮力的大小
浮力的大小与液体的密度和物体排开液体体积的大

阿基米德原理英语

阿基米德原理英语阿基米德原理[ājīmǐdéyuán lǐ]Archimedes principle知识推荐阿基米德阿基米德（公元前287年—公元前212年），伟大的古希腊哲学家、百科式科学家、数学家、物理学家、力学家，静态力学和流体静力学的奠基人，并且享有“力学之父”的美称，阿基米德和高斯、牛顿并列为世界三大数学家。

阿基米德曾说过：“给我一个支点，我就能撬起整个地球。

”阿基米德确立了静力学和流体静力学的基本原理。

给出许多求几何图形重心，包括由一抛物线和其网平行弦线所围成图形的重心的方法。

阿基米德证明物体在液体中所受浮力等于它所排开液体的重量，这一结果后被称为阿基米德原理。

他还给出正抛物旋转体浮在液体中平衡稳定的判据。

阿基米德发明的机械有引水用的水螺旋，能牵动满载大船的杠杆滑轮机械，能说明日食，月食现象的地球-月球-太阳运行模型。

但他认为机械发明比纯数学低级，因而没写这方面的著作。

阿基米德还采用不断分割法求椭球体、旋转抛物体等的体积，这种方法已具有积分计算的雏形。

双语例句1、通过阿基米德原理、杠杆原理、氮吸附法、定量分析及数理统计等手段对烧结体的孔隙率、力学性能、孔径和晶粒大小及其分布进行了表征和探讨。

On the other hand, porosity, mechanical property, distribution of pore size and grain size are also developed respectively via Archimedes principle, lever principle, BET and quantitative analysis method.2、同样对阿基米德原理，自由落体问题等进行纯逻辑的分析，非常直接地得出了必然的结论，并且可以帮助我们更好地理解物理规律。

Similarly, on the pure logic analysis of the Archimedes Principle and Free Fall Law, we could get an inevitable conclusion directly, which could help us better understand the laws of physics.3、根据阿基米德原理测瓷体密度；The density of YSZ was measured according to Archimedes' principle.4、阿基米德原理教学难点成因及突破The Causes of Difficulties in Teaching Archimedes' Theory and Ways to Break Through5、阿基米德原理的内涵The Connotation of Archimedean Principle。

人物简介浮力定律的发现者——阿基米德

人物简介：浮力定律的发现者一一阿基米德阿基米德（Archimedes ,约公元前287〜公元前212年）是古希腊著名的数学家、物理学家和发明家，约公元前287年诞生于地中海西西里岛的叙拉古城（希腊的殖民城市）。

他的父亲是古希腊天文学家和数学家。

阿基米德从小深受父亲的影响，偏爱数学，很早就学习希腊著名数学家欧几里得（约公元前330〜前275年）的《几何学原理》。

11岁的时候，阿基米德去当时著名的文化中心——尼罗河畔的亚历山大城学习。

在这期间，他发明了有名的阿基米德螺旋泵（一种提升水的机器），解决了利用尼罗河水灌溉的问题，迄今埃及农村还有用以灌溉的。

回叙拉古后，他继续致力于数学和物理学的研究。

阿基米德在物理学中的主要贡献是在静力学和流体静力学方面，是理论力学的创始人。

他在《论平面图形的平衡》一书中，证明了物体的重量之比等于距离的反比的杠杆定律。

当时，亥厄洛为埃及王托拉密造了一艘大船。

下水那天，许多人围着这艘船团团转，费了九牛二虎之力也无法推船下水。

国王召来了阿基米德，请他想想办法。

阿基米德欣然接受任务，精心设计了一个杠杆滑轮系统。

在隆重的推船下水仪式上，阿基米德从容地把绳子系到船上，另一端交给国王。

只见国王轻轻地一拉，魔术般的奇迹出现了：大船缓缓地移动到了水里。

阿基米德有许多发现，其中最著名的要算浮力定律一一阿基米德定律了。

关于这个定律的发现过程，历史上流传着一个发人深思的故事：亥厄洛在叙拉古称王之后，为了炫耀自己的尊贵，命令工匠为他制作一顶金王冠。

至厅规定日期，工匠送来了金光灿灿的王冠，重量恰好和交付的黄金相同，亥厄洛国王十分满意。

但后来有人告诉他，工匠在王冠里掺了假。

国王感到受了欺骗，但要想知道真相就得将王冠毁坏，否则就没有办法把事实的真相揭露出来，于是命令阿基米德想办法查明真相又不得损坏王冠。

阿基米德名言英文版

阿基米德名言英文版1.阿基米德英语介绍In 287 BC, Archimedes was born in Syracuse in Sicily (now in Siracusa, Italy). He was born in the aristocracy, and Syracuse's Joseph Wang farmers have relatives, family is very rich. Archimedes's father is a mathematician and astronomer, knowledgeable, modest man. His 11-year-old, and with the relationship between the royal family, were sent to the ancient Greek city of Alexandria Cultural Center to learn. Alexandria at the mouth of the Nile is at the time of the trade and cultural centers. There are magnificent museums, libraries, and a large pool of talent, the people of the world as "intellectual capital." Archimedes in the learning and living here for many years, talked to a lot of close contacts between scholars. During his study of mathematics, astronomy and mechanics have a strong interest. In his study of astronomy, invented by water-driven instrument of the planet and used it to simulate the sun, moon and planets of the solar eclipse and the operation and performance of the moon phenomenon. To address the Nile river water used for irrigation of the land problem, which invented the spiral-shaped cylinder pumping, later called "Archimedes spiral." In 240 BC, Archimedes and Syria back to the Gulag, when the king He agricultural adviser to the king to help resolve the practice of production, military technology and daily life in a variety of scientific and technical issues. In 212 BC, the Roman army fell to Syracuse, is concentrating on the issue of the scientific study of Archimedes, unfortunately, was Rome's arrogant soldier killed, 75-year-old throughout the year. Archimedes's body was buried in Sicily, inscribed on the tombstone of a cylinder cut the ballinside the graphics to mark his outstanding contribution to the geometry. Archimedes is the ancient Greek great mathematicians, Mechanics .Approximately 287 B.C. are born to Sicily narrates ancient pulls, 212B.C. died at with the place. Archimedes long ago followed Euclid in then cultural center Alexanderthe student study, about his biography not detailed record, butactually widely spread about his many stories. He will haveestablished the law of lever, and called "for me a pivot, I will movethe Earth"; Had discovered hydrostatics basic principle - Archimedes'Principle, and uses for to distinguish the imperial crown the genuineand fake; Once had designed many wars machineries, resists enemy'sattack。

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Archimedes’ Principle
• An immersed object is buoyed up by force equal to the weight of the fluid it displaced (Hewitt 278)
WHAT?!!
Archimedes Principle
• What happens to pressure when molecules increase speed? Defend with a law/theory!
– when molecules increase speed pressure decreases according to Bernoulli’s principle
Common language:
The buoyant force of an object is equal to the weight of the displaced
The weight of this volume is equal to the buoyant force.
Think About It
Go the lab and try to find the buoyant force of an object
• Write the steps you took to find the buoyant force.
See how the buoyant force works
Object floats because the buoyant force is bigger than weight
Buoyant Force and Archimedes Principle
Physics February 17/21
Pressure Review
• What affects the pressure of a liquid?
– The Density of the liquid – The depth of the liquid – The speed the liquid molecules
Buoyant Force
• Upward force that the liquid (water) exerts, opposite to gravity • Recall that forces are greater at greater depth
– Thus, results from the difference of the upward and downward forces applied to a submerged object (objective #3)
Let’s say the volume is 2 ml of water 2 ml = 2 g = 0.002 kg = 0.02 N (w = mg)
5N
The weight of this volume is equal to the buoyant force so the buoyant force = 0.02 N
– Read section 19.2 and 19.3 – Review the notes from the teacher – Go to the lab stations to get a hands-on experience – Generate questions for the teacher – Reflect on this experience
• Since the upward forces come from deeper in the liquid, the object is pushed up making is lighter (we will draw in forces of a rock submerged in water)
• Where will you experience more pressure: at the top of a mountain or the bottom of the sea? Why?
– More pressure at the bottom of the sea because of the greater depth?
• What affect the pressure of the air (atmospheric pressure)?
– The Density of the liquid – The depth of the liquid – The speed the liquid molecules
Pressure Review
Recall Displaced Water
• the amount of liquid pushed aside by a submerged object • volume of liquid displaced equals the volume of the submerged object • the depth of the liquid is increased by the submerged object because the liquid rises.
பைடு நூலகம்
Buoyant Force
Bigger Buoyant force in deeper liquids
Why do I feel lighter in water?
• Because the buoyant force pushes up against gravity, making you seem lighter in water
New Type of Learning
• Let’s imagine you are taking a class where the professor gives you the notes in a PowerPoint.
What are you doing?
• Today, your job is to

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