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Phys 1 Student Workbook.pdf

Phys 1 Student Workbook.pdf

Phys 1 Student Workbook.pdf

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Name _____________________ Class ______________ Date _________Lab Report - Activity P20: Conservation of Mechanical EnergyWhat Do You Think?What happens to the elastic potential energy of a spring stored in a compressed spring when it isreleased? What other form of energy does it become? Is energy conserved in this process?Data TableItemValueMass (cart & fence)Spring constant (k)Plunger length (x)Mass (cart & bar & fence)Run # 1 2 3 4 5 6 AverageKE (J)Elastic Potential Energy = PE elastic= 1 2 kx 2 = ______ JQuestions1. What is the percent difference between the average kinetic energy and the elastic potentialenergy?2. Which energy was larger in each case, the elastic potential energy or the kinetic energy ofthe cart?3. What are possible reasons for the differences, if any?P20 ©1999 PASCO scientific p. 143

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