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1、Page6Hooke'sLawandSimpleHarmonicMotion Name:__________________________Partner(s):__________________ Course:______________ Time:____________A.Hooke’sLawPurpose:ToverifyHooke’slawanddeterminethespringconstantsofelasticsprings.Apparatus:3springs,pendulumclamp,motionsensor,plumb-l
2、ine,meterstick,talllabstand,massset,paper-clip,meterstick,andmasshanger.Theory:Thinkaboutstretchingaspring.Themorestretchingforceyouapply,themorestretchyouget.RobertHooke(1635-1703),aBritishphysicist,discoveredthisempiricalrelationshipbetweenthestretchingforceandthestretch(x),knownasHoo
3、ke’slaw. AccordingtoHooke'slaw,themagnitudeofthestretchingforceisgivenby:StretchingForce=(Springconstant)XStretch.Thestretchingforceisprovidedbyt
4、headdedmass.YoucanalsoplotStretchingForceVERSUSStretch.Hooke’slawisverifiedwhenthereisalinearrelationshipbetweenStretchingForce&Stretch. TheSpringConstantisgivenbytheslopeoftheStretchingForceversusStretchgraph.Page6Procedure:1.Attachthemasshangertothehardspringandhangitfromthependulumcl
5、amp.2.Setupthemotionsensorabout50-cmbelowthebottomofthemasshanger.3.Connectthemotionsensortotheinterface(yellow-1,black-2),setthebeamtonarrow.4.SettinguptheInterfacefordatacollection:a.OpenPASCOCapstonesoftwarefromthedesktop.IftheBuyKey/EnterKeywindowpopsup,closeit.b.ClickHardwareSetupu
6、nderToolsontheleft,clickontheinterfaceinputwherethesensorisconnectedandselectMotionSensorII.ClickHardwareSetupagaintocloseit.c.Double-ClickDigitsunderDisplaysontheright,clickSelectMeasurement,andselectPosition.5.ClickRecordandrecordthedistancetothebottomofmasshangerfromthemotionsensor.S
7、topthedatacollection.6.Addanappropriatemasstomakethespringstretchabout2cmandmeasurethedistancetothebottomofmasshanger,again.7.Measurethestretchesforotheraddedmassesandcompletethedatatable.8.Repeat1-7fortheothertwosprings.9.EntertheabovedatainExcelandforeachspring;createtwomorec
