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Essay2.055 Words / ~13 pages Copenhagen Nørre Mini Extended Essay what is the effect of salt on the refractive index of the water. Physics Mini Extended Essay Table of Content Introduction: This Mini Extended Essay is an investigation of how the salinity effects the refractive index of water when a specific concentration of salt is dissolved in it. To prove the theory that salinity influences the refractive index of the water I carried out this experiment by using a diffraction grating. The refractive index, which is also called the index of refraction, is used to measure the bending of a light ray, when it travels from one medium into another medium. In my experiment, I used it to measure the refractive index of normal tap water first and then salt dissolved in water. I did this to see what, other than salt, effects the refractive index of the water. And to find the difference in…[show more]
Essay2.567 Words / ~8 pages Hanoi University Khoa học(tiếng Anh:science) là toàn bộ hoạt động có hệ thống nhằm xây dựng và tổ chức kiến thức dưới hình thức những lời giải thích và tiên đoán có thể kiểm tra được về vũ trụ. Thông qua các phương pháp kiểm soát,nhà khoa họcsử dụng cáchquan sátcác dấu hiệu biểu hiện mang tính vật chất vàbất thườngcủatự nhiênnhằm thu thập dữ liệu, phân tíchthông tinđể giải thích cách thức hoạt động, tồn tại của sự vậthiện tượng. Một trong những cách thức đó là phương phápthử nghiệmnhằmmô phỏnghiện tượng tự nhiên dưới điều kiện kiểm soát được và các ý tưởng thử nghiệm. Tri thức trong khoa học là toàn bộ lượng thông tin mà các nghiên cứu đã tích lũy được. Định nghĩa về khoa học được chấp nhận phổ biến rằng khoa học làtri thứctích cực đã đượchệ thống hóa. Trongtiếng Việt, khoa học, kỹ thuật, và công nghệ đôi khi được dùng với nghĩa tương tự nhau hay được ghép lại với nhau (chẳng…[show more]
Specialised paper815 Words / ~7 pages LeyDeOhm Trabajo Práctico de Física Ley de Ohm Año: 3 GIB Profesora: Silvia Ramírez Integrantes: lás , Florencia Grill, Guido Sanguinetti ÍNDICE DISEÑO 3 OBTENCIÓN Y PROCESAMIENTO DE DATOS .4 CONCLUSIÓN Y EVALUACIÓN 7 Diseño: El siguiente trabajo de investigación fue realizado para encontrar y analizar algún factor que implique la modificación en la resistencia de un circuito eléctrico. Para ello se utilizaron los siguientes materiales: Lámpara Fuente de energía Amperímetro Cables Al realizar el experimento, se pensó que la resistencia iba a variar dependiendo de los cambios que se realicen, ya sea en el voltaje como en la intensidad. Se identificaron diferentes tipos de variables, las cuales fueron identificadas como: Variable independiente­: La variable independiente identificada es el voltaje (medido en Volt), ya que se…[show more]
Specialised paper5.383 Words / ~31 pages Bertolt Brecht Gymnasium Brandenburg Von: Klasse: 9/2 Fachlehrer: Herr Facharbeit am Bertolt Brecht Gymnasium Facharbeit Schwarze Löcher Physik Fertig gestellt am 14.12.2015 1 Vorwort In dieser Facharbeit will ich das Thema schwarze Löcher erklären und weiter erläutern. Inspiriert dazu dieses Thema zu wählen ist mein Interesse an der Astronomie und Physik. Ich bin fasziniert vom Universum und dessen Geschehnissen­. Immer wenn ich durch mein Teleskop gucke und unsere Planeten wie Jupiter oder Saturn sehe, merkt man das dies echte Objekte in unseren Sonnensystem sind und das man sie mit dem eigenen Augen am Himmel sehen kann, deswegen könnte ich mich stundenlang mit diesem Thema befassen. Ich gucke viele Dokumentation­en über das Weltall und ein gewisses Thema ist für mich am atemberaubend­sten. schwarze Löcher. Für mich sind sie eines der interessantes­ten…[show more]
Handout601 Words / ~ pages BRG 19 Wien Transistors: A general explanation A transistor is a semiconductor device used to amplify and switch electronic signals and electrical power. It is composed of semiconductor material with three terminals for connection to an external circuit. Those are emitter, base and collector. Since semi-conducto­rs have a higher resistance than conductors, impurities are added to better its conductance. This process is called doping. The most frequently used semi-conducto­r is silicon. An atom of silicon has 4 electrons in its valence shell, this allows it to form bonds with 4 other silicon atoms, so it forms a tetrahedral crystal. Since all of the atoms are stuck in bonds only few get enough energy to escape their bonds and travel through the lattice. Having small number of mobile charges is what makes silicon a semi-conducto­r. The addition…[show more]
Powerpoint1.142 Words / ~16 pages Haremcollege Baarlo Newton 5 Straling en gezondheid Ioniserende straling | Vwo 5.7 Samenvatting 5 Straling en gezondheid Ioniserende straling | Vwo | Samenvatting Ioniserende straling α-straling β-straling γ-straling röntgenstrali­ng Eigenschappen ioniserend doordringend deeltje vermogen vermogen groot klein heliumkern matig matig elektron klein groot foton klein groot foton Doordringend vermogen α- en β-straling dracht γ- en röntgenstrali­ng halveringsdik­te Dracht Maximale afstand waarover α- of β-straling in een materiaal doordringt Halveringsdik­te Dikte waarbij een materiaal de helft van de invallende γ- of röntgenstrali­ng doorlaat α-straling β-straling γ- en röntgen-stral­ing papier perspex aluminium lood 5 Straling en gezondheid Ioniserende straling | Vwo | Samenvatting Absorptie van γ- en röntgenstrali­ng Intensiteit…[show more]
Exam preparation733 Words / ~2 pages Taurida National V.I.Vernadsky University, Simferopol Вопросы для подготовки к экзамену: Место истории в системе социально-гум­анита­рных наук. Методологичес­кие принципы исторического познания. Источники по истории России и их классификация­. Основные этапы развития отечественной исторической мысли. Народы и государства на территории нашей страны в древности. Образование государства Русь. Основные концепции и этапы становления государственн­ости Расцвет Руси при Владимире Великом и Ярославе Мудром. Принятие христианства и его значение. Свод законов «Русская Правда». Русь в условиях феодальной политической раздробленнос­ти. Владимир Мономах. Эволюция древнерусской государственн­ости в XII-начале XIII вв. Характеристик­а русских княжеств и земель в условиях политической децентрализац­ии Руси. Русь и Орда: особенности взаимоотношен­ий и взаимовлияния­.…[show more]
Presentation489 Words / ~ pages Goethe-Gymnasium/Rutheneum seit 1608 Gera 10/1 Presentation Topic: Gunpowder Introduktion Recently, we certainly have all welcomed the year 2013 with a fantastic firework (s.Bild!!). Who of you know the main components of a firework? - The main component is black powder, also called gunpowder. mixture Black powder consist of nitric acid, together with sulfur and charcoal. Black powder is not shock sensitive, and must be ignited by a. Like I said, black powder is a explosive mixture, but only Saltpeter is the most dangerous substance of the compound because it contains oxygen. The two other substances burn rapidly down using the Oxygen, even if they are separated from further air. Origin and background Today it is known that in early times Chinese, Indians and Arabs already experimented with mixtures Gunpowder. The lack of documents makes it impossible to say exactly…[show more]
Reflection541 Words / ~1 page GRG Wien 3 Higgs Boson The article “Huntin­g the Higgs” is a science article written by Michael Lemonick and published on 9th April 2012 in the newspaper “time”. The article is about the pursuit of the Higgs boson, which is the most elusive particle of all. Within the next few weeks, a team of physicist wants to find the Higgs boson with the Large Hadron Collider, better known as LHC. The LHC is the world’s most powerful particle accelerator in the near of Genf in Switzerland. The oval tunnel of LHC has a circumference of about 26.5km and is nearly 90m underground. The engineers split trillions of protons in two groups and send them in opposite direction through this tunnel. When they are travelling nearly with light speed, completing 11000 laps per second, the protons will crash into each other. This crash has such a high energy…[show more]
Reflection4.190 Words / ~13 pages Lycée Louis le Grand Paris Travaux Personnels Encadrés: Mesure du temps et son impact sur la société « Vulnerant omnes. Ultima necat » - Toutes [les heures] blessent. La dernière tue. Phrase autrefois présente sur les cadrans et horloges publiques rappelant le temps qui passe inexorablemen­t. ­ Le jour, la nuit, les mois, les saisons, les années: ce sont des notions que lhomme utilise tous les jours. Il vit le présent, se souvient du passé et aimerait prédire le futur. Le temps est continu, il est réel mais il n’a rien de concret : cest une notion qui existe mais nest cependant pas matérielle, le temps est insaisissable­. Comme laffirme Aristote dans son œuvre Physique, cest une réalité indécise. Il rythme la vie, façonne l’Homme et la société. La perception que celui-ci a du temps est subjective. Le temps est vécu ou subi selon les circonstances­. Pourquoi…[show more]
Term paper2.348 Words / ~1 page Hong Kong Polytechnic University - PolyU HK BEng (Hons) in Product Analysis and Engineering Design The Hong Kong Polytechnic University Semester 2, 2012-13 Mini-Project: Dynamics in a Product Newton Cradle Analysis In this report, we a) Identify the requirement of dynamics of the Newton Cradle. b) Carry a detailed analysis of the dynamics of Newton Cradle. c) Suggest improvement of the dynamics of the Newton Cradle. Newton’s cradle This is a device that can show the conservation of momentum and energy by swinging a series of spheres. When one of the end spheres lifted and released, the resulting force will travels through the line spheres and the fore will act on the last spheres. The last one was pushed upward. Detail action The last ball is pulled away and going to fall, it will hit on the series of balls and comes to nearly a dead stop. The ball at opposite side will accept almost…[show more]
Summary496 Words / ~1 page bG/BRG ST. Martin Villach Solar Radiation Solar radiation is a general term for electromagnet­ic radiation emitted by the Sun. Almost all of the energy found on Earth originates from the Sun. We can capture it and convert it into heat and electricity. Solar energy is created in the core of the Sun where nuclear fusion takes place. Due to the laws of gravity, all mass is pulled inwards by the core, whose radius makes up ¼ of the Sun’s. This creates intense pressure, forcing hydrogen nuclei to fuse to give the heavier helium nuclei. Each second, 700 million tons of hydrogen are converted into helium. Since the formation of the Sun (4,5 billion years ago), however, only ½ of the hydrogen which is found in the core has been used up. This solar nuclear process creates an immense amount of heat (~15 million Kelvin inside the core) and causes atoms to discharge photons.…[show more]





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