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PHY114 – INTRODUCTION TOPHYSICSFULL NAME: LAB #5. MECHANICAL WORK AND ENERGYEgor GrudinLAB #5. MECHANICAL WORK AND ENERGYRILEY O’CONNELCUNY College of Staten Island
Table of ContentsLab Objective...............................................................................................................................................2Physical Principles........................................................................................................................................2Procedure....................................................................................................................................................2Lab Data.......................................................................................................................................................2Computations and Graphs...........................................................................................................................2Summary.....................................................................................................................................................2Questions....................................................................................................................................................2
Lab ObjectiveTo show that mechanical energy is conserved.Physical Principles1 Joule = 1 kgm2s2KE = 0.5 × m × V2 (in Joules)PEg= mgh (in Joules)Energy Concentration: ∆E = 0or KEi+ PEi= KEf + PEfor ∆KE=-∆PE Procedure1.Turn photogate to “Pulse” mode.2.Make sure that the flagof the air glider is 60cm away from photogate.3.Add 5 g to the hunger, then turn the air supply on.

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