PendulumPaintingTradeinyourpaintbrushforapaint-filledpendulumtocreateuniquepatternsofart.Discoverhowtheforce

ofgravityaffectsvelocity,acceleration,andkineticandpotentialenergyinthisnewpaintingtechnique.TEKS:SCI3.6B:Thestudentisexpectedtodemonstrateandobservehowpositionandmotioncanbechangedbypushingandpullingobjectstoshowworkbeingdone,suchasswings,balls,pulleys,andwagons.SCI4.6D:Thestudentisexpectedtodesignanexperimenttotesttheeffectofforceonanobject,suchasapushorapull,gravity,friction,ormagnetism.SCI6.2A:Thestudentisexpectedtoplanandimplementcomparativeanddescriptiveinvestigationsbymakingobservations,askingwell-definedquestions,andusingappropriateequipmentandtechnology.SCI6.8B:Thestudentisexpectedtoidentifyanddescribethechangesinposition,direction,andspeedofanobjectwhenacteduponbyunbalancedforces.SCI8.6:Thestudentknowsthatthereisarelationshipbetweenforce,motion,andenergy.Materials:

• Broom• 2chairs• 8-12oz.foamorpapercup• Largepieceofbutcher/craftpaper,orothersurfacetobepainted• Paint• Plastictablecloth/Dropcloth• Scissors• Sharppencil• String• Tape• Water

HowTo:

1. Prepareyourpaintingareabycoveringthefloorwithaplastictableclothordropcloth.2. Placethechairsonyourdropcloth2-3feetapartwiththechair-backsfacingeachother.

3. Extendthebroomhorizontallyacrossthechairstomakeabarhoveracrossthepaintingarea.4. Layyourbutcher/craftpaperorothersurfacetobepaintedonthefloorbetweenthechairs.5. Usethepenciltopokeaholeintothecenterofthebottomofthecup.6. Maketwomoreholesacrossfromeachotherunderneaththerimofthecuponitssides.7. Threadapieceofstringthroughthesideholesandtiethestringtomakeahandle.8. Attachthecuphandletothebroomwithanotherpieceofstringsothatyourcuphangsoveryourwork

area.Thelengthofyourpendulumisuptoyouandcanalwaysbeadjusted.9. Tapeovertheholeinthebottomofyourcupandaddyourpainttothecup.Usea2:1ratioof2parts

paintand1partwater.Stirtomix.10. Removethetapeandswingyourpendulumcup.Observehowthependulumswingsandcreatesa

patternofpaintbelow.11. Allowthepainttodry.12. Reviseyourpendulum.Whathappensifyouchangethelengthofyourstring?Whatifyouswingthe

pendulumfasterorslower?Orwhatifyouchangetheheightfromwhichyoureleasethependulum?Havefunpaintingnewpatterns!

https://handmadekidsart.com/pendulum-painting/

STEMExplanation:Apendulumisanobjecthangingfromafixedpointthatswingsfreelyduetogravity.TheforceofgravityacceleratesthependulumdowntowardtheEarth.Themomentumbuiltupbytheaccelerationofgravitycausesthemasstoswingintheoppositedirectiontoaheightequaltotheoriginalposition.ThismomentumcanbeexplainedbyNewton’slawofinertia,whichstatesanobjectinmotionwillstayinmotionunlessactedonbyanunbalancedforce.Becauseenergycanneitherbecreatednordestroyed,potentialenergyandkineticenergyalternateasthependulumswings.Thesecomponentscometogethertocreatedifferentpaintpatternsasyourpendulumswings.CareerConnection:Physicistsarescientistswhodoresearchinphysics,whichinvolvesthestudyofmatteranditsmotionthroughspaceandtime,alongwithrelatedconceptssuchasenergyandforce.Morebroadly,itisthegeneralanalysisofnatureconductedinordertounderstandhowtheuniversebehaves.Resource:https://kidssteamlab.com/pendulum-painting/