Matter and Energy Section 3.1: Energy exists in different forms Physical Science Chapter 5 Energy & Power. 5.1 The Nature of Energy Energy – the ability to do work or cause a change. Energy – the ability to do work. Forms of Energy. Energy Energy Energy- The ability to do work Energy...
WORK AND ENERGY PPTenergy physics ppt
zero 零 (?K=0) positive 正的(?K0) negative 負的(?K0) Energy Units 能量單位 [ energy 能 ] = [ work 功 ] = J 焦耳 (SI 公制) CGS: Other energy units 其他的能量單位 : eV (electron-volt): used in nuclear, atomic, molecular, solid state physics. eV (電子伏特) : 用於核子,原子...
Chapter 5 Work, Energy and Power p. 79. Work “Work” means many things in different situations. When we talk about work in physics we are talking about. P. Sci. Unit 4 Chapter 15 Energy. Energy and Work Whenever work is done, energy is transformed or transferred to another system. En...
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Physics 5 Work
Physics211–Lecture13:Work,Energy,andPower Whatisenergy?•Energyisoftendefinedastheabilitytodowork.•Therefore,energyandworkhavethesameunits:Joules Whatisasystem?•Apre-definedregionofspaceorquantityofmatterlocatedinspace•Examples•entireautomobile•engineofautomobile•pistonchamber•gasolinetankin...
Work,Energy&PowerAPPhysicsBTherearemanydifferentTYPESofEnergy.EnergyisexpressedinJOULES(J)4.19J=1calorieEnergycanbeexpressedmorespecificallybyusingthetermWORK(W)Work=TheScalarDotProductbetweenForceandDisplacement.SothatmeansifyouapplyaforceonanobjectanditcoversadisplacementyouhavesuppliedENERGYordoneWORKonthatobject...
W ORK E NERGY & P OWERIntroductionPerhaps the most important concept that we have in science is that of energy, and derived fromthat the work that we can do, and in turn the rate at which we can do the work. This first classwill concentrate on defining these terms in a general sense...