PASCO ME-8088 User Manual

Instruction Manual

Manual No. 012-08478B

Centripetal Force

Apparatus

Model No. ME-8088

Centripetal Force Apparatus Model No. ME-8088

Table of Contents

Equipment List........................................................ 3-4

Introduction ............................................................. 5

Equipment Setup ..................................................... 5-7

Suggested Experiments ................................................. 8

Experiment 1: Centripetal Force vs. Velocity............................................................................ 8-9

Experiment 2: Centripetal Force vs. Mass............................................................................. 10-11

Experiment 3: Centripetal Force vs. Radius.......................................................................... 12-13

Sample Data/Results...................................................14

Troubleshooting ........................................................ 15

Appendix A:Specifications............................................. 16

Appendix B: DataStudio Setup Instructions (for PASPORT interfaces)

.......................................................................... 17

Appendix C: DataStudio Setup Instructions (for

ScienceWorkshop

interfaces).............................................................. 18

Appendix D: Technical Support ....................................... 19

Appendix E: Copyright and Warranty Information .................. 19

Model No. ME-8088 Centripetal Force Apparatus

Centripetal Force Apparatus

Model No. ME-8088

Equipment List

Included Equipment Replacement

1. Frame with Mounted Electric Motor (1)

2. Connecting Cable (1)

3. Ball Bearing Swivel (1)

4. Thumbscrew for Photogate (1)

5. Nuts for Free and Fixed Mass Holders (2)

6. 5 g Mass (2)

7. 10 g Mass (2)

8. 20 g Mass (2)

9. Centripetal Force Appar atus Setup disk (3. 5” flopp y) (not shown above)

Model Number*

623-038

003-08383

614-034

614-029 648-06507 648-06508 648-06509 013-08478

*Use Replacement Mo del N um be rs to e xpe di te replacement orders.

NA = not availa bl e as individual replace me nt item. To repl ace product, use ME-8088 .

(continued on next pag e)

Centripetal Force Apparatus Model No. ME-8088

Additional Equipment Recommended for Experiments (with

ScienceWorkshop

)

Replacement Model Number*

A computer (Windows or Macintosh) NA

DataStudio® Software

ScienceWorkshop®

Economy Force Sen sor CI-6746 Photogate Head ME-9498A Steel Rod (45 or 120 cm) ME-8736 and

Multi-Clamp SE-9442 Large Rod Base ME-8735 Banana plugs (1 red, 1 black) SE-9750 or SE-9751 Triple Output Power Supply (12 V, 3 A) (1) SE-8587

500 or 750 Interface

Additional Equipment Recommended for Experiments (with PASPORT™ )

A USB-compatible computer (Windows or Macintosh) NA DataStudio Software (version 1.5 or later) various (see catalog) PASPORT™ Force Sensor Photogate Port PS-2123 Photogate Head ME-9498A USB Link (2) or Xplorer (2) or PowerLink PS-2100 or PS-2000

Steel Rod (45 or 120 cm) ME-8736 and

Multi-Clamp SE-9442 Large Rod Base ME-8735

Banana plugs (1 red, 1 blac k) Triple Output Power Supply

various (see catalog)

CI-6400 or CI-6450 or

CI-7650

ME-8741

Replacement Model Number*

PS-2104

or PS-2001

ME-8741

SE-9750 or SE-9751

SE-8587

Model No. ME-8088 Centripetal Force Apparatus

Introduction

PASCO’s Centripetal Force Apparatus (ME-8088) allows students to investigate the rela tionships b etween centr ipetal force, radius, mass, and ve loc i ty fo r an object undergoing uniform circular motion. Traditional expe riments in this area involve the swinging of masses above the head. The traditio nal approach is difficult to execute and data is rarely sufficient for an understanding of the relationships. The Centripetal Force Apparatus removes these di fficulties by using sensors to measure the fo rce and velocity of the mass as it rotates.

Figure 1: Setup wit h Force

Velocity is vari ed by ch an ging th e vol tag e supplied to the included electric motor. Drilled masses are included to facilitate a range of mass trials. The radius is changed by slidi ng the captured masses al ong the grooves in the rotatin g arm. A convenient me asuring scale is included on both sides of t he arm .

Sensor on stand

The sturdy base includes rod clamps for connection to a standard rod stand or the un it can be clamped to a table using a common “C” clamp.

Equipment Setup

1. Mount a stainless steel rod into

a base support stand.

2. Use the rod clamps to attach

the Centripetal Force Accessory t o the rod (See Figure 2).

3. Remove the free mass holder

(Figure 3) and measure its mass. T o remove the free mass holder, loosen the screw below the rotating arm.

base stand

Figure 2: Mounting the Centripetal Force Accessory

rod

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