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TREBUCHETEXPERIMENTS

Trebuchet–TheFrenchinventedthisengineinthetwelfthcenturybytheorderofNapoleon.Thiswasusedasbothaweaponandasupplyenginebecauseitcouldlaunchobjectstothoseinneed.Thetrebuchethasaleverandapouchattachedtoittolaunchtheobject.Theobjectthatisflyingintheairiscalledprojectile.

Hypothesis:Whatobjectwilltravelthefarthest?Whichvariablewillbethebest?

Ithinkthe____________________________________travelthefarthestbecause___________________________________________________________________________________.

Materials:MindStormsNXT,NXTBrain,LegoPiecestoBuildTrebuchet,ErasersBig(20.8g)andMediumSize(11.8g),Chapstick(17.1g),Gumdrop(13.1g),PaperBall(4.6),HollowBall(13.0g)includedwithLegokit,andmeasuringtape.

Procedure:Pleasewritetheprocedureforoneobjectanddrawapictureofthetrebuchetwiththatobject.

Data:

Object

Trial1 Trial2 Trial3 Average

BigEraser

MediumEraser

Chapstick

GumDrop

PaperBall

PlasticBall

Results:Pleaseanalyzeyoudatabymakingabargraphofyourresults.

Object

Repeatthesameexperimentswithchangingthelengthofthearm.

Object

Trial1 Trial2 Trial3 Average

BigEraser

MediumEraser

Chapstick

GumDrop

PaperBall

PlasticBall

Results:Pleaseanalyzeyoudatabymakingabargraphofyourresults.

Repeatthesameexperimentschangingtheangelofthearm.

Object

Trial1 Trial2 Trial3 Average

BigEraser

MediumEraser

Chapstick

GumDrop

PaperBall

PlasticBall

Results:Pleaseanalyzeyoudatabymakingabargraphofyourresults.

Now,discusswhatyourresultsshow.

Conclusion:

Whatdoyourresultsshow?

Whatisyourhypothesis?

Wereyourightaboutyourhypothesis?

Howcouldtheexperimentbebetter?