PASCO ME-8089 User Manual
Instruction Manual
Computer-Based
Centripetal Force
Accessory
Model No. ME-8089
Manual No. 012-08425A
Centripetal Force Accessory Model No. ME-8089
Table of Contents
Equipment List........................................................... 3
Introduction ............................................................. 4
Equipment Setup ..................................................... 4-7
Suggested Experiment .............................................. 7-10
Part I: Centripetal Force vs. Velocity......................................................................................... 7-9
Part II: Centripetal Force vs. Mass.................................................................................................9
Part III: Centripetal Force vs. Radius...........................................................................................10
Sample Data/Results...................................................10
Appendix A: DataStudio Setup Instructions ...................... 11
Appendix B: Technical Support ....................................... 12
Appendix C: Copyright and Warranty Information .................. 12
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®
Model No. ME-8089 Centripetal Force Accessory
Computer-Based
Centripetal Force Accessory
Model No. ME-8089
Equipment List
9
7
6
5
4
3
8
10
11
2
1
Included Equipment Model
Number
1. Connecting Cable (1) 623-038 Rotating Platform ME-8951
2. Ball Bearing Swivel, 12.5 g (1) 648-08386 A computer N/A
3. Pivot block (1) 648-08422
4. Thumbscrew for Pivot Block
(1)
5. Sliding Mass Holder (1) 648-08423
6. Mass, 100 g (2) 648-06511
7. Screws for Mass Holders (2) 610-246 Steel Rod (45 and 90 cm or 120
8. Stationary Mass Holder (1) 648-08424 Multi-Clamp SE-9442
9. Nuts for Mass Holders (2) 614-006 Large Rod Base (2) ME-8735
10. Thumbscrews (2) 613-067 Experiment Setup Disk 013-08425A
11. Mass, 50 g (4) 648-06510
*PASPORT™ sensors (with PS-prefix) require a PASPORT™ interface PS-2100(2) or PS-2001(1) for operation. A Photogate
Port (PS-2123) is required for photogate use with PASPORT interfaces.
**ScienceWorkshop
Optional equipment: For constant speed studies, a Motor Drive (ME-8955) with DC Power Supply (SF-9584A) is
recommended.
®
sensors (with CI-prefix) require a ScienceWorkshop® interface for operation.
617-003
Additional Equipment
Required
DataStudio® Software
Computer Interface
Force Sensor
Photogate Head/Port ME-9498A, PS-2123
cm)
PASPORT* or
Model
Number
See PASCO catalog.
ScienceWorkshop
PS-2104* or
CI-6746**
ME-8736/ME-8738/
ME-8741
**
*
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Centripetal Force Accessory Model No. ME-8089
Introduction
PASCO’s Computer-Based Centripetal Force Accessory
(ME-8089) allows students to investigate the relationships
between centripetal force, radius, mass, and velocity for
an object undergoing uniform circular motion. Traditional
experiments in this area involve the swinging of masses
above the head. The traditional approach is difficult to
execute and data is rarely sufficient for an understanding
of the relationships. With a computer interface, Force
Sensor, and photogate, the Computer-Based Centripetal
Force Accessory removes these difficulties by allowing
the student to directly measure and observe the force and
velocity of the mass as it rotates.
Masses are included with the apparatus to facilitate a
range of mass trials. The sliding and stationary mass holders provided with the accessory attach to a PASCO Rotating Platform (ME-8951). Spinning the Rotating Platform
and allowing it to slow down (without assistance) varies
the velocity. The platform can be manually spun by hand
or automatically with a Motor Drive (ME-8955) and DC power supply. Sliding the captured
masses along the grooves in the rotating platform changes the radius. For radius measurements, a
convenient measuring scale is included on the top edge of the platform.
Figure 1: Setup with Force
Sensor on Stand
Equipment Setup
1. Insert the photogate post into the base
stand and into the photogate head.
2. Use a thumbscrew to mount a Photogate
Head (ME-9498A) to the bottom of the
“A” base (See Figure 2). Let the Photogate
Head rest over the first ring on the 3-step
pulley of the Rotating Platform. (Note:
Ensure that the positioning of the
photogate does not restrict movement of
the shaft).
3. Connect the photogate to a computer
interface (ScienceWorkshop or
PAS PO RT ).
4
photogate
pulley
steel rod
cable
to interface
Figure 2: Photogate on Base
of Centripetal Apparatus
®
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