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The Wilberforce pendulum has the brass weights removed here and the rotational inertia is adjusted with the plastic masses on the threaded rod. ASU copyright The motion sensor and the laser switch are mounted at the bottom. ASU copyright The top assembly includes a lecture laser, a force sensor. The force sensor must be fastened to the spring so that it has no play. Any slack energy taken from here is removed from the Wiberforce pendulum's ability to twist. ASU copyright The entire apparatus can be seen here. The monitor shows the Data Studio graphs. ASU copyright The graph shows the vertical motion and the force are maximum at the same time. The angular velocity of the Wilberforce pendulum is greatest when the motion of the spring is at a minimum. ASU copyright
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PHYSICS |
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| 3A70.10B | Wilberforce Pendulum | Rating:![]() |
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Captions and Credits to the left in the sidebar. |
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Description: Energy transfers between vertical and torsional modes of motion.. |
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| Room:PS F175 | Location: Ba3 | Sublocation: | ||
| Type: demo | Date Added:6/7/2007 | Condition: | ||
| Quantity:2 | Complete: | Last updated: 6/7/2007 | ||
| Purpose: | ||||
| Safety Issues: Never look directly at light from a laser directly or from reflections and wear protective eyewear. Disclaimer (Warning - work in progress - may be incomplete) | ||||
| Equipment Issues: | ||||
| Parts: | ||||
| Copyright © 2000 | Instructions: Make sure that when using the frorce sensor that the spring can not twist. I used a small wire to fasten the spring to the force sensor hook. The laser switch has to be aligned carefully. Plug the Motion Sensor stereo plugs yellow in channel one and black in channel 2 Plug the laser switch stereo plug into channel 3 Plug the DIN connector of the Foce Sensor into first analog channel. Drag Motion sensor icon to the first two channels. Drag the Force Sensor icon to the first analog channel. Drag the Smart Pulley to the third digital channel. Do not drag the laser switch icon since this requires additional set up. |
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| Arizona Board of Regents | Notes: | |||
| Webmaster Privacy | ||||
| Accessibility | References: | |||
| Links:http://www.phy.davidson.edu/StuHome/pecampbell/Wilberforce/Setup%20and%20Procedure.htm | Movie: | Caption: | ||
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| 1A0 | MEASUREMENT |
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| 1A10 | Basic Units |
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| 1A10.10 | Basic units set-Video | Video Encyclopedia: Show a clock with a second sweep, meter & yard sticks, and kilogram and pound mass |
VE01_01
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3_1
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PS F175
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| 1A10.35 | Meter stick - 4 sided | Graduated in meters, decimeters, centimeters, & millimeters |
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Aa2
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PS F175
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| 1A10.50 | Liter Cube/set |
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Aa2
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PS F175
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| 1A10.510 | Meter Cube | Meter cube frame, stored dismantled |
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Aa2
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PS F175
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| 1A10.520 | Volume Perception Paradox | One liter of colored water is poured from a sphere to cylinder. The sphere seems smaller but is of equal volume. |
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PS F175
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| 1A10.60 | Avogadro's Number box | Black 22.4 liter cube |
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Aa2
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PS F175
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| 1A20 | Error and Accuracy |
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| 1A20.10 | Gaussian curve - Video | Video Encyclopedia: A commercial device for the overhead projector where ball bearings roll through an array of nails into parallel chutes. |
VE16_12
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3_1
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PS F175
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| 1A20.25A | Dice - ordinary |
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Aa2
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PS F175
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| 1A20.25B | Dice - overhead |
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Aa2
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PS F175
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| 1A20.25C | Dice - polyhedral |
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Aa2
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PS F175
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| 1A20.25D | Dice - large foam |
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Aa2
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PS F175
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| 1A30 | Coordinate System |
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| 1A30.10A | XYZ Coordinate axes | Long arrow shafts with label attachments |
top
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7
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PS F175
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| 1A30.10B | XYZ Coordinate axes | Zometool version |
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Aa3
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PS F175
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| 1A30.10C | XYZ Coordinate axes | Medium arrow shafts with dull broadheads |
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cabinet
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PS H356
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| 1A30.30 | Polar Coordinates | A semi circle is rotated about an axis to demonstrate why integration over theta is from zero to 180 degrees. |
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Aa3
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PS F175
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| 1A30.30 | Polar Coordinates |
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| 1A30.40A | Chalkboard Globe - Large |
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Af6
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PS H156
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| 1A30.40B | Chalkboard Globe - Small |
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Af6
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PS H156
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| 1A40 | Vectors |
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| 1A40.001 | Vector models, Magnetic Field model, Electric Field model, Electromagnetic Field model | Three cardboard vector models. 1) A uniform vector field represented by 9 arrows in 3 by 3 array. 2)Single vector represent by an arrow perpendicular to cardboard. 3) Same as 2) except a circle is drawn around the arrow to represent the curl of the vector |
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Aa3
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PS F175
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| 1A40.10 | Vector components (3D)-Video | Video Encyclopedia : Metal arrows define a three dimensional coordinate system. An arbitrary vector is viewed in three planes. |
VE01_07
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3_1
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PS F175
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Records 1 to 25 of 1978
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