PASCO ME-8091 User Manual
Instruction Manual
Wilberforce
Pendulum
Model No. ME-8091
Manual No. 012-08397A
Items Included
Pendulum Model No. ME-8091
Table of Contents
Equipment List........................................................ 3-4
Introduction ............................................................. 5
Setup Options ........................................................... 5
Equipment Setup ..................................................... 6-9
Suggested Experiment .............................................. 9-11
Sample Data/Results...................................................11
Troubleshooting ........................................................12
Appendix A: Specifications............................................ 13
Appendix B: Laser Safety Information ..........................14-15
Appendix C: DataStudio Setup Instructions for Wilberforce Pendulum
Experiments with
ScienceWorkshop
Interfaces ..................... 16
Appendix D: DataStudio Setup Instructions for Wilbeforce Pendulum
Experiments with PASPORT Interfaces .............................. 17
Appendix E: Technical Support ....................................... 18
Appendix F: Copyright and Warranty ................................ 18
2
®
Model No. ME-8091 Wilberforce Pendulum
Wilberforce Pendulum
Model No. ME-8091
Equipment List
4
1
3
5
Included Equipment Replacement
1. Spring (1)
2. Threaded rod (1)
3. Brass Cylinder Mass, 0.9 cm diameter, 5.5 g (2)
4. Brass Cylinder Mount Holder, 0.9 cm diameter, 11 g (1)
5. Brass Cylinder Bob, 3.0 cm diameter, 234 g (1)
6. Photogate Wheel (1)
2
9
7
6
1
8
Model Number*
632-056
648-08341
615-231
648-08325
648-08324
648-08323
7. Thumbscrew for Photogate Wheel (1)
8. Rod Clamp (1)
9. Plastic masses (with thumbscrews), 0.5 g
616-141
003-05134
614-029
*Use Replacement Model Numbers to expedite replacement orders.
Additional Equipment Required (for setups with or without an interface) Model Number*
Large Rod Base (1)
Stainless Steel Rods (120 cm) (2)
Stainless Steel Rod (45 cm or 90 cm) (1)
Multi-Clamps (2)
®
ME-8735
ME-8741
ME-8736 or ME-8738
SE-9442
3
Wilberforce Pendulum Model No. ME-8091
(Equipment Continued from Page 3)
Equipment Recommended (for setups with interfaces) Model Number*
A computer
Any PASCO data acquisition device (
PA SP O RT
™
interface, etc.)
ScienceWorkshop®
DataStudio Software
Force Sensor (1)
Motion Sensor (1)
Laser Switch (1)
X-Y Adjustable Diode Laser (1)
Adjustable Angle Clamp (1)
NA = not available for sale from PASCO scientific
interface,
NA
Various
CI-6870C
CI-6637 or PS-2104
CI-6688 or PS-2103
ME-9259A
OS-8526
ME-8744
4
®
Model No. ME-8091 Wilberforce Pendulum
Introduction
The Wilberforce Pendulum allows students to investigate the
relationship between translational and torsional motion in an
oscillating pendulum. With force and motion sensors, a laser, laser
switch, and DataStudio software, students can collect real-time data of
the period, velocity, and acceleration of the pendulum’s oscillations.
Using the pendulum with the included Photogate Wheel, students can
observe the effect of rotational inertia on the oscillations. Brass
masses slide onto the crossbar of the pendulum bob, allowing students
to discover the affect of mass position on the period of oscillation. The
angular velocity, position, and acceleration during rotation can also be
plotted in a Graph display in DataStudio, enabling students to see a
visual display of the oscillatory periods and to isolate the point at
which the vertical and angular periods become equal.
WARNING: Before
setting up your equipment,
Setup Options
The Wilberforce Pendulum can be used with or without an interface
[either ScienceWorkshop interfaces or PASPORT interfaces (USB
Links etc),] and with various attachment pieces. With the spring and
attachments included, you can attach a Photogate Wheel for rotary
inertia experiments or use the brass mass to study the effect of mass on
the oscillatory period (Figures 1a and 1b).
please inform your
students of the hazards of
lasers and enforce
appropriate safety
precautions in your
classroom. For more
information, see Appendix
B: Laser Safety in this
manual.
Photogate
Plastic
Masses
Wheel
Cross
Bars
Figure 1a:
Setup with
Photogate
Wheel
Brass
Mass
Figure 1b:
Setup with
Brass
Masses
and Crossbars
Figure 1: Setup with ScienceWorkshop Interface and Sensors
®
Plastic
Mass
5
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