constant acceleration lab恒定加速实验室

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1、ConstantAccelerationLabIntroductionInthislabyouwillcomparetwoobjectsthatareundergoingconstantacceleration.Objectives·Collectposition,velocity,andaccelerationdataasaballtravelsstraightupanddownandforafancartmovingawayandback.·Analyzethepositionvs.time

2、,velocityvs.time,andaccelerationvs.timegraphs.·Determinethebestfitequationsforthepositionvs.timeandvelocityvs.timegraphs.·Determinethemeanaccelerationfromtheaccelerationvs.timegraph.MaterialscomputerVernierMotionDetectorVerniercomputerinterfacevolley

3、ballorbasketballLoggerProwirebasketHorizontalrampFanCartProcedurePart1:BallToss1.ConnecttheVernierMotionDetectortotheDIG/SONIC 1channeloftheinterface.2.PlacetheMotionDetectoronthefloorandprotectitbyplacingawirebasketoverit.Makesurethatthemotiondetect

4、orisplacedawayfromthetableasfaraspossiblesotoreduceanyinterferencewiththeconedshapedultrasonicbeam.3.Openthefile“06BallToss”fromthePhysicswithVernierfolderfoundinVernierSoftwareLoggerPro.4.Inthisstep,youwilltosstheballstraightupwardabovetheMotionDete

5、ctorandletitfallbacktowardtheMotionDetector.Thisstepmayrequiresomepractice.Holdtheballdirectlyaboveandabout0.5mfromtheMotionDetector.Clicktobegindatacollection.YouwillnoticeaclickingsoundfromtheMotionDetector.Waitonesecond,thentosstheballstraightupwa

6、rd.Besuretomoveyourhandsoutofthewayafteryoureleaseit.Atossof0.5mabovetheMotionDetectorworkswell.Youwillgetbestresultsifyoucatchandholdtheballwhenitisabout0.5 mabovetheMotionDetector.5.Examinethepositionvs.timegraph.RepeatStep4ifyourpositionvs.timegra

7、phdoesnotshowanareaofsmoothlychangingposition.CheckwithMr.Fawcettifyouarenotsurewhetheryouneedtorepeatthedatacollection.6.Foreachgraphpresstheauto-scalebutton(A)onthetopmenubartoresize.Youcanalsoputyourmousepointerovertheaxisandwhenacurlyarrowappears

8、clickanddragtoresize,orclickonthehighestvalueoneachaxisandenteryourownrange.7.Titleyourgraphs“balltoss”andputyourgroupmembersnamesonthembeforeprinting.Part2:FanCart1.Setthemotiondetectorontheendofahorizontalramppositionedonblockstoraiseitabovethecomp