Instruction Manual Manual No. 012-08820A Ballistic Pendulum Accessory Model No.
Ballistic Pendulum Accessory Model No. ME-9845 Table of Contents Equipment List........................................................... 3 Introduction ............................................................. 4 Equipment Setup ........................................................ 4 Taking Measurements and Collecting Data ............................ 6 Part I: Measuring the Velocity of the Car ......................................................................................
Model No. ME-9845 Ballistic Pendulum Accessory Ballistic Pendulum Accessory Model No. ME-9845 Equipment List 1 2 4 3 Included Equipment Replacement Model Number* 1. Support Plate with rod clamp (1) 2. Thumbscrews, 8-32x1/2 (4) 3. Thread (1 roll) 4. VELCRO® hook and loop tape** * Please contact PASCO Technical Support when no replacement part number is provided. ** Note: VELCRO is a registered trademark of Velcro Industries B.V.
Ballistic Pendulum Accessory Model No. ME-9845 Introduction Using the ME-9845 Ballistic Pendulum Accessory and a PASCO Roller Coaster Set (ME-9812), students can investigate conservation of energy and momentum for a collision. When the student rolls a Mini-Car from a known height down a Roller Coaster, the car is captured by a catcher (included with the PASCO Roller Coaster Set).
Model No. ME-9845 Ballistic Pendulum Accessory 3. Slide the rod clamp of the support plate over the photogate peg and tighten the rod clamp to hold the support plate in place. Keep the long side of the support plate perpendicular to the white board. 4. Adjust the end of the track so that the car goes off the end into the catcher. (For more information, see the Roller Coaster manual provided with the Roller Coaster Set.) 5. Cut two long pieces of thread.
Ballistic Pendulum Accessory Model No. ME-9845 8. Loop the thread to the white track clip on the peg at the end of the track. (See Figure 4.) thread clip thread Figure 4: Attaching the Catcher Thread to the Track Taking Measurements and Collecting Data Part I: Measuring the Velocity of the Car: 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.
Model No. ME-9845 Ballistic Pendulum Accessory 3. Insert the flag into the car (Figure 5). photogate flag Figure 5: Car with Flag Entering Photogate 4. Before releasing the car, make sure that when the car passes through the photogate, the flag blocks the photogate beam. If not, adjust the photogate up and down, so that the flag blocks the photogate beam. The nuts on the photogate support peg allow changing of the sideways position of the photogate.
Ballistic Pendulum Accessory Model No. ME-9845 Part II: Measuring the Height of the Catcher 1. As the catcher swings up, thread is pulled through the VELCRO strip. When the catcher swings back, the thread stops moving. 2. Hold the thread in place with your thumb and swing the catcher out until the thread is tight. 3. Measure the height of the catcher off the table and subtract the height when the catcher is at the bottom. The difference is the height (h) by which the catcher went up. Experiment 1.
Model No. ME-9845 Ballistic Pendulum Accessory Calculations and Analysis m = mass of catcher mo=mass of car vo=initial speed of car V=speed of car and catcher immediately after collision (before swinging up) h= change in height as car and catcher swing up 1. Using the measured height h, calculate the speed V of the car and catcher immediately after the collision. During the swing (due to very little friction), one can assume that energy is conserved.
Ballistic Pendulum Accessory Model No. ME-9845 Appendix A: DataStudio Setup Instructions Procedure 10 Steps PART I: Plug the photogate into the interface: PASPORT: a) Plug a Photogate into either port of a PASPORT Photogate Port. b) Plug the Photogate Port into a PASPORT interface. c) Connect the PASPORT interface (i.e. USB Link, PowerLink, etc.) to a USB port on your USB-compatible computer. d) When the PASPORTAL window opens, select “Launch DataStudio.
Model No. ME-9845 Ballistic Pendulum Accessory Appendix B: Technical Support For assistance with the ME-9845 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 Email: techsupp@pasco.com Appendix C: Copyright and Warranty Information Copyright Notice The PASCO scientific 012-08820A Ballistic Pendulum Accessory Manual is copyrighted and all rights reserved.
