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Demonstration Spring Set
ME-9866
Three 11 cm long springs
and one 22 cm long
spring, with Spring
Constants ranging from
4 N/m to 14 N/m.
Spring Sets
Hooke’s Law Set
ME-9827
Includes
Stand with heavy base
Transparent scale with
mm resolution
Horizontal support for spring
Brightly colored stretch indicator
Three springs with identical
diameter and length, but
different spring constants
Three of each spring included,
for a total of nine springs: spring
constants are 5 N/m, 8 N/m,
70 N/m.
Spring Set
Included
Brightly colored
stretch indicator
allows students
to easily measure
the stretch of the
spring.
Transparent Scale
is adjustable.
Included stand with
heavy base.
Order Information:
Demonstration Spring Set ...............................................................ME-9866
Recommended:
Pendulum Clamp .....................................................................................SE-9443
Wilberforce Pendulum
ME-8091
P Use as a traditional Wilberforce to show coupled oscillations
P Accommodates computer measurements
Diode Laser
Force
Sensor
Wilberforce
Pendulum
The vertical position, velocity and
acceleration of the Wilberforce
Pendulum are measured with a
Motion Sensor placed below the
pendulum. A laser and a Laser
Switch measure the angular
speed in the torsional mode as
the spokes of the wheel break
the laser beam. A Force Sensor
attached to the end of the spring
measures the spring force as the
pendulum oscillates.
Order Information:
Hooke’s Law Set ...................................................................................ME-9827
Recommended:
Replacement Spring Set .................................................................SE-8749
Shown in use with:
Mass and Hanger Set .......................................................................ME-8979
How It Works
Wilberforce
Spring
When the Wilberforce Pendulum is initially
displaced vertically, it oscillates in a purely
up-and-down motion. The translational
oscillation gradually transfers to a purely
torsional mode and then back to the
translational mode. The translational and
torsional periods must be the
same. This is accomplished by
adjusting the position of the
masses on the crossbar.
Includes
Spring and Mass
Force Sensor attachment
Rod Clamp
Photogate Wheel
Photogate
Wheel
Crossbar
and
Masses
Laser Switch
Motion
Sensor
The height is measured using a Motion Sensor,
angular velocity using a Laser Switch and
Photogate Wheel, force using a Force Sensor.
Order Information:
Wilberforce Pendulum ......................................................ME-8091
Shown in use with:
Force Sensor ............................................................................CI-6537 p. 2
Motion Sensor II ....................................................................CI-6742A p. 2
Laser Switch ..............................................................................ME-9259A p. 2
x-y Adjustable Diode Laser .............................................OS-8526A
750 Interface ..............................................................................CI-7650 p. 2
Recommended:
Rods and Clamps ........................................................................................................p. 108, 109
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