PASCO ME-9892 Instruction Manual With Experiment Manual And Teacher's Notes
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PASCO ME-9892 Instruction Manual With Experiment Manual And Teacher's Notes

Ballistic pendulum accessory
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I n s t r u c t i o n M a n u a l w i t h
®
E x p e r i m e n t G u i d e
012-09842C
Ballistic Pendulum Accessory
ME-9892

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Summary of Contents for PASCO ME-9892

  • Page 1 I n s t r u c t i o n M a n u a l w i t h ® E x p e r i m e n t G u i d e 012-09842C Ballistic Pendulum Accessory ME-9892...

  • Page 2: Table Of Contents

    B a l l i s t i c P e n d u l u m A c c e s s o r y Introduction ............4 Equipment Set-up .
  • Page 3 Ballistic Pendulum Accessory ME-9892 Included Equipment Part Number Optional Equipment Part Number 1. Catcher and pendulum ME-9892 Photogates (qty. 2) ME-9498A or similar 1, 2 Digital Adapter PS-2159 2. Pendulum attachment 613-076 Photogate Mounting ME-6821 screw Bracket 3. Replaceable foam...

  • Page 4: Introduction

    B a l l i s t i c P e n d u l u m A c c e s s o r y I n t r o d u c t i o n Introduction Use the Ballistic Pendulum Accessory in combination with a Short Range Launcher and Rotary Motion Sensor (RMS) to measure the velocity of a steel ball and study rotational collisions.

  • Page 5: Load The Launcher

    M o d e l N o . M E - 9 8 9 2 E q u i p m e n t S e t - u p Select one of the holes on the pendulum rod: either the center hole or the end hole.

  • Page 6: Prepare The Sensor

    With age and repeated use, the foam catcher insert may lose elasticity. If the catcher does not reliably hold the ball, remove the foam insert and replace it with a new one. (Contact PASCO Teacher Support for a replacement foam insert, 648-09757). Figure 8: Removable foam insert ®...

  • Page 7: Experiment 1: Ballistic Pendulum

    M o d e l N o . M E - 9 8 9 2 E x p e r i m e n t 1 : B a l l i s t i c P e n d u l u m Experiment 1: Ballistic Pendulum Theory The ballistic pendulum has historically been used to measure the launch velocity of a...
  • Page 8 B a l li s t ic P e n d u l u m A c c e ss o r y E x p e r i m e n t 1 : B a l l i s t i c P e n d u l u m Launch the ball so that it is caught in pendulum.

  • Page 9: Analysis

    M o d e l N o . M E - 9 8 9 2 E x p e r i m e n t 1 : B a l l i s t i c P e n d u l u m Analysis Use your value of ...

  • Page 10: Experiment 2: Conservation Of Momentum And Energy

    Ballistic Pendulum Accessory Experiment 2: Conservation of Momentum and Energy Experiment 2: Conservation of Momentum and Energy Background In this experiment you will analyze the angular collision between a ball and a physical pendulum. You will compare the rotational momentum of the ball before the collision to the rotational momentum of the pendulum-ball system after the collision.

  • Page 11: Part 3: Determine Rotational Inertia Of Pendulum-Ball System

    M o d e l N o . M E - 9 8 9 2 E x p e r i m e n t 2 : C o n s e r v a t i o n o f M o m e n t u m a n d E n e r g y Procedure Load the launcher and push the ball in to the third (fastest) position.
  • Page 12 Ballistic Pendulum Accessory Experiment 2: Conservation of Momentum and Energy Clamp the RMS on the mounting rod so that the pendulum can rotate in a hori- zontal plane (see Figure 2.3). Clamped-on pulley Hanging mass Figure 2.3: Setup for determining rotational inertia Clamp a pulley to the RMS and set up a string and hanging mass (approximately 20 g to 30 g) as shown in Figure 2.3.

  • Page 13: Analysis

    M o d e l N o . M E - 9 8 9 2 E x p e r i m e n t 2 : C o n s e r v a t i o n o f M o m e n t u m a n d E n e r g y Calculate the torque () applied to the pulley by the string.

  • Page 14: Further Study I: Different Launch Speeds

    Ballistic Pendulum Accessory Experiment 2: Conservation of Momentum and Energy Compare the kinetic energy of the ball before the collision to the kinetic energy of the pendulum-ball system just after the collision. Was energy conserved in the collision? What was the gain in potential energy of the pendulum (not including the ball)? What was the purpose of the counterweight? Compare the kinetic energy of the pendulum-ball system just after the collision to the gain in potential energy of the ball.

  • Page 15: Further Study V: Alternative Determination Of Rotational Inertia

    M o d e l N o . M E - 9 8 9 2 E x p e r i m e n t 2 : C o n s e r v a t i o n o f M o m e n t u m a n d E n e r g y Perform the analysis for energy and momentum as before.

  • Page 16: Further Study Vi: Horizontal Collision

    Ballistic Pendulum Accessory Experiment 2: Conservation of Momentum and Energy Further Study VI: Horizontal Collision Repeat the experiment with the apparatus in one of the configurations shown in Fig- ure 2.6 and 2.7 using parts from the Mini Rotational Accessory (ME-8968) and a sec- ond three-step pulley.

  • Page 17: Technical Support

    PASCO, PASCO scientific, PASCO Capstone, PASPORT, SPARK SLS, and Xplorer GLX are trademarks or registered trademarks of PASCO scientific, in the United States and/or in other countries. All other brands, products, or service names are or may be trade- marks or service marks of, and are used to identify, products or services of, their respective owners. For more information visit www.pasco.com/legal.

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