PASCO Specialty & Mfg. ME-9866 User's Manual
Contents
1. m Instruction Manual MU DU NUMERO TEE Demonstration Spring Set Model No ME 9866 ll ot f Ul e 8 10101 Foothills Blvd Roseville CA 95747 7100 Phone 916 786 3800 FAX 916 786 8905 www pasco com Model No ME 9866 Warranty For a description of the product warranty see the warranty description in the PASCO catalog 2 PAS lee Model No ME 9866 Demonstration Spring Set Demonstration Spring Set Model No ME 9866 Equipment List Included Equipment 1 Four Demonstration Springs Spring constants 4N m to 14 N m Lengths 11 cm to 22 cm SE 8759 ME 9355 SE 9443 SE 8050 SE 8695 I8 7 1e 3 Demonstration Spring Set Model No ME 9866 Introduction PASCO s Demonstration Spring Set includes four large springs for use in demonstrations of Hooke s Law static equilibrium and conservation of energy Each spring is constructed of durable spring steel and includes convenient hooks at each end Independence of X and Y Motion Discovering Hooke s Law 1 Hang the desired spring from a horizontal support and measure the distance from the bottom of the spring to the tabletop or floor Record this distance in a data table 2 Place a hooked mass or mass hanger on the bottom on the spring PASCOR Model No ME 9866 Demonstration Spring Set 3 Measure the distance from the bottom of the spring to the tabletop or floor 4 Subtract the initial distance from the new dis2. students hypothesis 9 PASCOR
3. tance to calculate the stretch of the spring Record this value in a data table 5 Place more mass on the spring and repeat measurements calculations 6 Collect at least six pairs of hanging mass and stretch data 7 Convert the hanging masses to force using the acceleration due to gravity m 9 81 E S 8 Create a graph with force on the vertical axis and stretch on the horizontal axis 9 Using y mx b write an equation for each of the lines Make sure to include appropriate variables numbers and units in the equation 10 The slope of the Force vs Stretch graph in known as the spring constant or rate The vertical intercept represents the amount of force needed to begin stretching the spring and is also known as the initial tension Conservation of Energy 1 Determine the spring constant of the strongest spring I8 7 1e 5 Demonstration Spring Set Model No ME 9866 2 Hang the spring from horizontal support above a tabletop 3 Tie a 30 cm piece of string to a 200 g mass 4 Feed the string through the center of the spring and tie to the horizontal support such that the hook of the mass is around the bottom loop of the spring but not stretching it 5 Ask students to use conservation of energy to calculate how far the mass will fall when the string is cut 6 The horizontal support should then be adjusted so the mass will just miss the tabletop when the string 1s cut 7 Cut the string to test the
Download Pdf Manuals
Related Search