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Balls roll down a ramp into a 40.8 cm diameter loop.

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PHYSICS
1M40.20A Loop the loop Rating:

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Description: A ball is rolled on the Loop the loop.
Room:PS F175 Location: Dn1 Sublocation:
Type: demo Date Added: Condition:
Quantity:1 Complete: Last updated: 5/8/2006
Purpose: To show the height that a ball has to be launched from to stay on the track.
Safety Issues: Disclaimer (Warning - work in progress - may be incomplete)
Equipment Issues:
Parts:
Copyright © 2000 Instructions:
You have a choice of three balls. A heavy one inch steel ball, a light one inch acrylic ball, and a large 1.75 inch white ball.
Use the two small balls to show that the height is independent of the mass.
The white ball, since it is larger effectively has a smaller radius around the loop and can be launched about 3 cm lower than the small balls.
There is a fair amount of friction. Maybe a 25% of the energy is lost to friction.
Without spinning the h = 5/2 r.
With spinning h = 27/10 r.
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1A0 MEASUREMENT
1A10 Basic Units
1A10.10 Basic units set-Video Video Encyclopedia: Show a clock with a second sweep, meter & yard sticks, and kilogram and pound mass
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1A10.35 Meter stick - 4 sided Graduated in meters, decimeters, centimeters, & millimeters
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1A10.50 Liter Cube/set
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1A10.510 Meter Cube Meter cube frame, stored dismantled
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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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1A10.60 Avogadro's Number box Black 22.4 liter cube
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1A20 Error and Accuracy
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.
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1A20.25A Dice - ordinary
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1A20.25B Dice - overhead
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1A20.25C Dice - polyhedral
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1A20.25D Dice - large foam
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1A30 Coordinate System
1A30.10A XYZ Coordinate axes Long arrow shafts with label attachments
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1A30.10B XYZ Coordinate axes Zometool version
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1A30.10C XYZ Coordinate axes Medium arrow shafts with dull broadheads
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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.
Aa3
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1A30.30 Polar Coordinates
1A30.40A Chalkboard Globe - Large
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1A30.40B Chalkboard Globe - Small
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1A40 Vectors
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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1A40.10 Vector components (3D)-Video Video Encyclopedia : Metal arrows define a three dimensional coordinate system. An arbitrary vector is viewed in three planes.
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