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Rube-Goldberg Machine

Rube-Goldberg Machine. By: John Higgins, Karmen McPherson, Mark Johnson, Michelle Minton. The Group. Conversions. 1 st Conversion is potential energy converted to kinetic energy, mgh=12mv^2.

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Rube-Goldberg Machine

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  1. Rube-Goldberg Machine By: John Higgins, Karmen McPherson, Mark Johnson, Michelle Minton

  2. The Group

  3. Conversions • 1st Conversion is potential energy converted to kinetic energy, mgh=1\2mv^2. • 2nd Conversion is an energy transfer through momentum, m_1*v_1=m_2’*v_2’, because v_2=0 m/s and v_1’=0 m/s. • 3rd Conversion is potential and kinetic energy to just kinetic energy, mgh+1/2mv_1^2=1/2mv_2^2.

  4. The Machine

  5. Errors • Conversions weren’t perfect because not all energy was transferred. • Some velocity and energy was lost during the first inch of travel due to friction. • We kept all velocities constant by saying friction was negligible. • Not all of the velocity was transfer from the weight to the ball because of horizontal velocity.

  6. Conclusion • It was really neat to find out that what we have been learning really applies to the real world. • We used energy conservation and constant acceleration equations to find the horizontal distance the marble traveled after it left the pipe to find where to place the mouse trap.

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