What is kinetic energy? (article) - Khan Academy

Kinetic energy is the energy an object has because of its motion. If we want to accelerate an object, then we must apply a force. Applying a force requires us ... Ifyou'reseeingthismessage,itmeanswe'rehavingtroubleloadingexternalresourcesonourwebsite. Ifyou'rebehindawebfilter,pleasemakesurethatthedomains*.kastatic.organd*.kasandbox.orgareunblocked. CoursesMath:Pre-K-8thgradePre-Kthroughgrade2(KhanKids)Earlymathreview2ndgrade3rdgrade4thgrade5thgrade6thgrade7thgrade8thgradeSeePre-K-8thgradeMathMath:GetreadycoursesGetreadyfor3rdgradeGetreadyfor4thgradeGetreadyfor5thgradeGetreadyfor6thgradeGetreadyfor7thgradeGetreadyfor8thgradeGetreadyforAlgebra1GetreadyforGeometryGetreadyforAlgebra2GetreadyforPrecalculusGetreadyforAP®CalculusGetreadyforAP®StatisticsMath:highschool&collegeAlgebra1GeometryAlgebra2TrigonometryPrecalculusHighschoolstatisticsStatistics&probabilityCollegealgebraNEWAP®︎/CollegeCalculusABAP®︎/CollegeCalculusBCAP®︎/CollegeStatisticsMultivariablecalculusDifferentialequationsLinearalgebraSeeallMathTestprepSATLSATPraxisCoreMCATScienceMiddleschoolbiology-NGSSNEWMiddleschoolEarthandspacescience-NGSSNEWMiddleschoolphysics-NGSSNEWHighschoolbiologyHighschoolbiology-NGSSHighschoolphysicsHighschoolphysics-NGSSAP®︎/CollegeBiologyAP®︎/CollegeChemistryAP®︎/CollegeEnvironmentalScienceAP®︎/CollegePhysics1SeeallScienceComputingComputerprogrammingAP®︎/CollegeComputerSciencePrinciplesSeeallComputingArts&humanitiesUShistoryAP®︎/CollegeUSHistoryUSgovernmentandcivicsAP®︎/CollegeUSGovernment&PoliticsWorldHistoryProject-OriginstothePresentWorldHistoryProject-1750tothePresentArthistoryAP®︎/CollegeArtHistorySeeallArts&HumanitiesEconomicsMacroeconomicsAP®︎/CollegeMacroeconomicsMicroeconomicsAP®︎/CollegeMicroeconomicsSeeallEconomicsReading&languageartsUpto2ndgrade(KhanKids)2ndgrade3rdgrade4thgrade5thgrade6thgrade7thgrade8thgrade9thgradeGrammarSeeallReading&LanguageArtsLifeskillsSocial&emotionallearning(KhanKids)CareersPersonalfinanceGrowthmindsetInternetsafetyNEWSeeallLifeSkillsSearchDonateLoginSignupSearchforcourses,skills,andvideosMaincontentSciencePhysicslibraryWorkandenergyWorkandenergyWorkandenergyIntroductiontoworkandenergyWorkandenergy(part2)ConservationofenergyWhatareenergyandwork?Whatiskineticenergy?Thisisthecurrentlyselecteditem.Whatisgravitationalpotentialenergy?Whatisconservationofenergy?Workandthework-energyprincipleWorkasthetransferofenergyWorkexampleproblemsWorkasareaundercurveThermalenergyfromfrictionWhatisthermalenergy?Work/energyproblemwithfrictionConservativeforcesPowerWhatispower?NextlessonSpringsandHooke'slawScience·Physicslibrary·Workandenergy·WorkandenergyWhatiskinetic energy?Learnwhatkineticenergymeansandhowitrelatestowork.GoogleClassroomFacebookTwitterEmailWorkandenergyIntroductiontoworkandenergyWorkandenergy(part2)ConservationofenergyWhatareenergyandwork?Whatiskineticenergy?Thisisthecurrentlyselecteditem.Whatisgravitationalpotentialenergy?Whatisconservationofenergy?Workandthework-energyprincipleWorkasthetransferofenergyWorkexampleproblemsWorkasareaundercurveThermalenergyfromfrictionWhatisthermalenergy?Work/energyproblemwithfrictionConservativeforcesPowerWhatispower?NextlessonSpringsandHooke'slawSortby:TopVotedWhatareenergyandwork?Whatisgravitationalpotentialenergy?UpNextWhatisgravitationalpotentialenergy?