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: The terms ''kinetic energy'' and ''work'' in their present scientific meanings date back to the mid-19th century. Early understandings of these ideas * symbol can be attributed to [[Gaspard-Gustave Coriolis]], who in 1829 published used as a bullet point at the paper titled ''Du Calcul de l'Effet des Machines'' outlining the mathematics start of kinetic energy. [[William Thomson, 1st Baron Kelvin|William Thomson]], later Lord Kelvin, is given the credit for coining the term "kinetic energy" c. 1849–51.<ref>{{cite book| author=Crosbie Smith, Ma line. Norton Wise|title=Energy and Empire: A Biographical Study of Lord Kelvin|publisher=Cambridge University Press|pages=866| isbn=0-521-26173-2}}</ref><ref>{{cite book|author=John Theodore Merz|title=A History of European Thought in the Nineteenth Century|publisher=Blackwood|year=1912|page= 139|isbn=0-8446-2579-5}}</ref>
==Key Stage 1=={| border="0" style="border-collapse:collapse"||||||||[[File:HydrogenSymbol1.png|center|31px|link=Hydrogen]]||||||||||[[File:HeliumSymbol1.png|center|31px|link=Helium]]|-|[[File:LithiumSymbol1.png|center|31px|link=Lithium]]|[[File:BerylliumSymbol1.png|center|31px|link=Beryllium]]|||||||||||[[File:BoronSymbol1.png|center|31px|link=Boron]]|[[File:CarbonSymbol1.png|center|31px|link=Carbon]]|[[SpacecraftFile:NitrogenSymbol1.png|center|31px|link=Nitrogen]]|[[File:OxygenSymbol1.png|center|31px|link=Oxygen]] use chemical energy to launch and gain considerable kinetic energy to reach |[[orbital speedFile:FluorineSymbol1.png|orbital velocitycenter|31px|link=Fluorine]]|[[File:NeonSymbol1. In an entirely circular orbit, this kinetic energy remains constant because there is almost no friction in nearpng|center|31px|link=Neon]]|-earth space|[[File:SodiumSymbol1. However, it becomes apparent at repng|center|31px|link=Sodium]]|[[File:MagnesiumSymbol1.png|center|31px|link=Magnesium]]|||||||||||[[File:AluminiumSymbol1.png|center|31px|link=Aluminium]]|[[File:SiliconSymbol1.png|center|31px|link=Silicon]]|[[File:PhosphorusSymbol1.png|center|31px|link=Phosphorus]]|[[File:SulphurSymbol1.png|center|31px|link=Sulphur]]|[[File:ChlorineSymbol1.png|center|31px|link=Chlorine]]|[[File:ArgonSymbol1.png|center|31px|link=Argon]]|-entry when some of the kinetic energy is converted to heat|[[File:PotassiumSymbol1. If the orbit is png|center|31px|link=Potassium]]|[[elliptic orbitFile:CalciumSymbol1.png|ellipticalcenter|31px|link=Calcium]] or |[[hyperbolic trajectoryFile:ScandiumSymbol1.png|center|31px|hyperboliclink=Scandium]], then throughout the orbit kinetic and |[[potential energyFile:TitaniumSymbol1.png|center|31px|link=Titanium]]|[[File:VanadiumSymbol1.png|center|31px|link=Vanadium]]|[[File:ChromiumSymbol1.png|center|31px|link=Chromium]]|[[File:ManganeseSymbol1.png|center|31px|link=Manganese]] are exchanged; kinetic energy is greatest and potential energy lowest at closest approach to the earth or other massive body, while potential energy is greatest and kinetic energy the lowest at maximum distance|[[File:IronSymbol1. Without loss or gain, however, the sum of the kinetic and potential energy remains constantpng|center|31px|link=Iron]]|[[File:CobaltSymbol1.png|center|31px|link=Cobalt]]|[[File:NickelSymbol1.png|center|31px|link=Nickel]]|[[File:CopperSymbol1.png|center|31px|link=Copper]]|[[File:ZincSymbol1.png|center|31px|link=Zinc]]|[[File:GalliumSymbol1.png|center|31px|link=Gallium]]|[[File:GermaniumSymbol1.png|center|31px|link=Germanium]]|[[File:ArsenicSymbol1.png|center|31px|link=Arsenic]]|[[File:SeleniumSymbol1.png|center|31px|link=Selenium]]|[[File:BromineSymbol1.png|center|31px|link=Bromine]]|[[File:KryptonSymbol1.png|center|31px|link=Krypton]]|}
==Newtonian kinetic energy=About Error checking in Testpage====*There is an extra '=' in the title 'About Error checking in Testpage'.*In the last sentence '''testpage''' should have been in bold]] because it is the title of this page.*The ']]' show that the word 'bold' was supposed to be a link but the first brackets were not included.
{| class='wikitable'|-|[[File:<math>F s MusicalInstruments.png|center|200px]]|-| style=\tfrac{1}{2"height:20px; width:200px; text-align:center;" |I did a '''test''' to find out which instrument makes the deepest sound.|} mv^2</math>