Rube Goldberg Machine. Nicole Stockton, Samantha Bennett, Arthur Swanson, and Raquel Navarro. PE to KE. W IN : mgh .052(9.8)(.062) W IN : 0.0319J W OUT : 1/2mv² 1/2(.052)(.45)² W OUT : 0.0053J. W IN : mgh + 1/2mv² .166(9.8)(.23)+ 1/2(.166)(.038)² W IN : 0.377J W OUT : mgh +1/2 mv² - PowerPoint PPT Presentation
Rube Goldberg Machine
Rube Goldberg MachineNicole Stockton, Samantha Bennett, Arthur
Swanson, and Raquel NavarroPE to KEWIN: mgh9.8(.77m)(.056kg)WIN:
0.423JWOUT: 1/2mv.5(.056)(3.4) WOUT: 0.324J
Efficiency: 77%
WIN: mgh+ 1/2mv.166(9.8)(.23)+ 1/2(.166)(.038)WIN: 0.377JWOUT:
mgh +1/2 mv.166(9.8)(.1)+1/2(.166)(3.6)WOUT: 0.016J
Efficiency 4.2%
WIN: mgh .052(9.8)(.062)WIN: 0.0319JWOUT:
1/2mv1/2(.052)(.45)WOUT: 0.0053J
Efficiency 17%Ke to PEWIN: 1/2mv.5(.056)(3.4) WIN: 0.324JWOUT:
mgh9.8(.078kg)(.07kg)WOUT: 0.0535J
Efficiency 16.5%
WIN: 1/2mv.5 (.02892)(2.75)WIN: 0.109JWOUT:
mgh(.02892)(9.8)(.17)WOUT: 0.086J
Efficiency 70%Pe to PeWIN: mgh9.8(.078kg)(.07kg)WIN:
0.0535JWOUT: mgh cup+ mgh(water).01(9.8)(.08)+.13(9.8)(.03)WOUT:
0.0449J
Efficiency 16.5%KE to RotationalWIN: mgh(cup)+mgh
(water)01(9.8)(.08)+.13(9.8)(.03)WIN: 0.0449JWOUT:WOUT:
1/2I(.5(.1513)(.05) (1.03)WOUT: 9.967x10-5J
Efficiency 83%Rotational to Pe
WIN: 2 /time(11/180)2 / .374WIN: 1.03 rot/secWOUT:
1/2I(.5(.1513)(.05) (1.03)WOUT: 9.967x10-5J
Efficiency43.5%PE to ElectricWIN: mgh/t.166(9.8)(.01)/.112WIN:
0.143wWOUT: IV6v(.002a)WOUT: 0.012w
Efficiency 8%Wind to KeWIN: (rh)1.2(.045.12)1.2WIN:9.16x
10-4JWOUT: 1/2mv.5(WIN:9.16x 10-4) (1.5)WOUT:0.001J
Pe to electricFormula: mgh =
IV(9.8)(2.63kg)(.165m)=(100w/120v)WIN: 0.103JWOUT: 100w
Electric to solar
Solar to KE
Total EfficiencyWIN: mgh .77(9.8)(.056)WIN: 0.423JWOUT:
1/2mv1/2(.052)(.45)WOUT: 0.0053J
(.0053/.423)100= 1.3% VideoCitations The Physics
Classroom.1996-2011. .Kinetic Energy. August 2000. .Mr. JonesEIA
Energy Kids. U.S Energy Information Association. 3 March 2011
.Jones, Eric. Personal Interview. 3 March 2011.
