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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文档下载后可定制随意修改，请根据实际需要进行相应的调整和使用，谢谢!并且，本店铺为大家提供各种各样类型的实用资料，如教育随笔、日记赏析、句子摘抄、古诗大全、经典美文、话题作文、工作总结、词语解析、文案摘录、其他资料等等，如想了解不同资料格式和写法，敬请关注!Download tips: This document is carefully compiled by the editor. I hope that after you download them, they can help you solve practical problems. The document can be customized and modified after downloading, please adjust and use it according to actual needs, thank you!In addition, our shop provides you with various types of practical materials, such as educational essays, diary appreciation, sentence excerpts, ancient poems, classic articles, topic composition, work summary, word parsing, copy excerpts, other materials and so on, want to know different data formats and writing methods, please pay attention!阿基米德的浴缸与浮力的发现引言古希腊数学家和物理学家阿基米德（Archimedes）是历史上伟大的科学家之一。

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.。

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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