PASCO CI-6689A CHAOS ACCESSORY - Manual

Instruction Sheet
for the PASCO
Model CI-6689A
CHAOS ACCESSORY
012-06594A
8/97
$1.00
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© 1996 PASCO scientific
This instruction sheet written by: Jon Hanks
Introduction
The PASCO CI-6689A Chaos Accessory is designed
for use with the PASCO CI-6538 Rotary Motion Sensor
(RMS) or the PASCO CI-6625 Rotary Motion Sensor for
ULI. It consists of an aluminum disk (identical to the
one provided with the PASCO CI-6691 Mini-Rotational
Accessory), a mass which attaches to the edge of the
disk to form a physical pendulum, two springs for put-
ting tension in the thread, and an adjustable-gap mag-
net which attaches to the side of the RMS to provide
variable magnetic damping.
Please refer to the instruction manual supplied with the
Rotary Motion Sensor for a detailed description of ex-
periments using the Chaos Accessory.
Chaos Experiment
The purpose is to examine the different modes of oscilla-
tion of a damped driven physical pendulum caused by
varying the driving amplitude, driving frequency, mag-
netic damping, and initial conditions.
Additional Equipment Required
• IDS Mount Accessory (CI-6692)
A mounting bracket for mounting the RMS to the
PASCO Introductory Dynamics System tracks (1.2
meter ME-9435A or 2.2 meter ME-9458).
magnetic damping
attachment
thread
mass
spring (2)
disk