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Summary of Contents for PASCO Physical Pendulum Accessory
- Page 1 Instruction Manual Manual No. 012-08581A Physical Pendulum Accessory Model No. ME-9858...
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Page 3: Table Of Contents
Physical Pendulum Accessory Model No. ME-9858 Table of Contents Equipment List............3 Introduction ............. 4 Equipment Setup ............. 4-5 Taking Measurements and Collecting Data ......6 Part I: Measure and Adjust the Mass of the Car ................6 Part II: Record the Pendulum’s Mass, Length, and Radius ..............6 Part III: Collecting Velocity Data ......................7... -
Page 4: Equipment List
*Use Replacement Model Numbers to expedite replacement orders. Additional Equipment Required Replacement Model Number* or ScienceWorkshop ® ) Various ™ A PASCO computer interface (PASPORT (See PASCO catalog.) Roller Coaster ME-9812 Photogate and Smart Timer or computer system with interface ME-8930 and ME-9498A ®... -
Page 5: Introduction
Model No. ME-9858 Introduction The Physical Pendulum Accessory (ME-9858) is used with the PASCO Roller Coaster (ME-9812). The Mini-Car provided with the Roller Coaster Apparatus has a rubber band bumper, which collides elastically with the Physical Pendulum Accessory. The Physical Pendulum Accessory attaches to a PASCO Roller Coaster. - Page 6 Model No. ME-9858 Physical Pendulum Accessory 2. a) Attach the pendulum bar by sliding the pivot pin into the middle of the pendulum bearings. Insert the pivot rod into the exact hole shown on the peg board (Figure 2a). support peg...
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Page 7: Taking Measurements And Collecting Data
Physical Pendulum Accessory Model No. ME-9858 Taking Measurements and Collecting Data Part I: Measure and Adjust the Mass of the Car 1. Release the car from halfway up the hill and carefully watch the collision. If the car has no added masses, it will rebound off of the pendulum, and thus be moving "backwards"... -
Page 8: Part Iii: Collecting Velocity Data
Model No. ME-9858 Physical Pendulum Accessory Part III: Collecting Velocity Data Option 1: Measuring the Car’s Velocity with Photogates and a Computer Interface 1. Place a Photogate on the last peg of the Roller Coaster track. This will allow you to measure... -
Page 9: Theory
Physical Pendulum Accessory Model No. ME-9858 Theory = mass of car (including bumper and masses) M= mass of pendulum = speed of the car just before collision pivot pin l = length of physical pendulum (ignoring bumper pin) center of mass x= distance from center of mass (c.m.) to pivot (calculated) -
Page 10: Experiment
Model No. ME-9858 Physical Pendulum Accessory 3.Angular Momentum The linear momentum (p) of the car is m , but in a collision that causes rotation, we have to look at the angular momentum , where r is the distance from the car (rubber band) up to the pivot, and the magnitude of the initial angular momentum of the car about the pivot is (5). -
Page 11: Calculations
Physical Pendulum Accessory Model No. ME-9858 Also, recheck what the car does after the collision. If the car is moving at all, you don't have the mass correct; go back and adjust the mass. 2.Measure the speed of the car. -
Page 12: Appendix A: Datastudio Setup Instructions
Model No. ME-9858 Physical Pendulum Accessory Using equation #8, calculate the resulting KE of the pendulum. -- - Iω How do these two values compare? Calculate the percent difference between them. How "elastic" was the rubber band collision? What are the sources of error? Did you lose or gain energy? What would you expect? Explain why. -
Page 13: Appendix B: Technical Support
Physical Pendulum Accessory Model No. ME-9858 Appendix B: Technical Support For assistance with the ME-9858 or any other PASCO products, contact PASCO as follows: Address: PASCO scientific 10101 Foothills Blvd. Roseville, CA 95747-7100 Phone: (916) 786-3800 FAX: (916) 786-3292 Web: www.pasco.com...
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