12. pendulum painting - girlstartgirlstart.org › wp-content › uploads › 2017 › 12 ›...
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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/