Heat: a form of energy Heat In physics and chemistry‚ heat is energy transferred from one body to another by thermal interactions.[1][2] The transfer of energy can occur in a variety of ways‚ among them conduction‚[3] radiation‚[4] and convection. Heat is not a property of a system or body‚ but instead is always associated with a process of some kind‚ and is synonymous with heat flow and heat transfer. Heat flow from hotter to colder systems occurs spontaneously‚ and is always accompanied by an
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“Teach me and I forget. Show me and I remember. Involve me and I understand.” – Benjamin Franklin. Benjamin Franklin was raised in a poverty. He nourished himself with literature when he was just a kid‚ and worked for his brother as a printer at the age of 17. When he left his brother to open his own printing press‚ he became so successful that he retired at the age of 42! This allowed him to focus on his love for science. Franklin was a polymath (in other words‚ he was many things)—an author‚ printer
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Carl Friedrich Gauss Carl Friedrich Gauss was a German mathematician and scientist who dominated the mathematical community during and after his lifetime. His outstanding work includes the discovery of the method of least squares‚ the discovery of non-Euclidean geometry‚ and important contributions to the theory of numbers. Born in Brunswick‚ Germany‚ on April 30‚ 1777‚ Johann Friedrich Carl Gauss showed early and unmistakable signs of being an extraordinary youth. As a child prodigy‚ he was
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Part III PHYSICS HSE II Time:2Hours Max:60 Scores 1. Three identical charges each +q are placed at the corners of an equilateral triangle of side d cm. Calculate the force on a +ive charge +2q at the centroid of the triangle. 2 2.If the earth is supposed to be a metallic sphere‚its capacity will be nearly (a) 700pf (b) 700 microfarad (c) 700f (d) 6.4 X10^6 f 1score 3. write the relation between dielectric constant and electric susceptibility. 1score 4. A box encloses an electric dipole consisting
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a changing electric current is surrounded by an associated changing magnetic field‚ which in turn generates a changing electrical current in a conductor placed within it‚ which has its own magnetic field…and so on. It is the electromagnetic equivalent of nesting Matryoshka dolls. Thus‚ in the case of electromagnetic induction‚ placing a conductor in the magnetic field surrounding the first current generates the second current. Electromagnetic induction was discovered independently by Michael Faraday
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Physics began when man first started to study his surroundings. Early applications of physics include the invention of the wheel and of primitive weapons. The people who built Stone Henge had knowledge of physical mechanics in order to move the rocks and place them on top of each other. It was not until during the period of Greek culture that the first systematic treatment of physics started with the use of mechanics. Thales is often said to have been the first scientist‚ and the first Greek philosopher
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La Salle College of Antipolo Feasibility study of a Flashlight to become a Mobile Charger A Research Presented to the Night High School Department LaSalle College Antipolo In Partial Fulfillment of the Requirements for 4th year NHS – Department By: Mark Gerald J. Marinay Ma. Luisa P. Macalalad Rema G. Copino Danica N. Lauzon Marridel M. Urminita Carmela May J. Villaganas March 2011 La Salle College of Antipolo Acknowledgement By working in this investigatory project‚ we would like to thank
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Channel Your Sexual Energy Written by Sen on November 12th‚ 2011 The intensity of sexual energy cannot be matched with any emotion known to humans. The force instigated by sexual energy can override even the most intense fears in a human; there is enough evidence to suggest that humans can undertake some extremely risky behaviour under the influence of this energy‚ which they would not dream of doing if they were not taken up by it. No other force has the power to inject the amount of courage‚
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Physical Science Review Waves‚ Sound and Light Waves- What are Waves? 1. 1 .The substance that a move through is called a medium. 2. True or False: Particles are squeezed together during rarefactions. 3. True or False: Waves that require a medium through which to travel are called electromagnetic waves. 4. True or False: The matter in the medium moves perpendicular to a transverse wave. 5. What medium is often used to transfer computer information? Optic Fibers 6. 6 .A
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Professor Oersted Hans Christian Oersted’s Experiment * Hans Christian Oersted performed an important experiment which showed that there was a connection between electricity and magnetism. * When a current was switched on through a wire‚ it made a compass needle turn so that it was at right angles to the wire. * The current had produced a magnetic field strong enough to cause the compass needle to turn. Additional effects due to experiment * It was already known that an electric
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