Arizona State University College of Liberal Arts and Sciences
Physics Click for PIRT home page

As the mirror approaches the ballerina she begins to spin. The magnets in the mirror and the ballerina are at right angles to each other and exert a torque on each other.

ASU copyright

Explains the DCS labeling scheme.Send an email to Tim CookGo to the Instructors Resourses page.Go to the Physics Department Web page.
PHYSICS
5H20.121A Ballerina Dancing Mary Rating:

Captions and Credits to the left in the sidebar.

Description: The ballerina spins when a mirror is pushed toward her.
Room:PS F175 Location: Cd3 Sublocation:
Type: demo Date Added:6/3/2004 Condition:
Quantity:1 Complete: Last updated: 6/3/2004
Purpose: To show that magnets at right angles exert a torque.
Safety Issues: Disclaimer (Warning - work in progress - may be incomplete)
Equipment Issues:
Parts:
Copyright © 2000 Instructions:
The ballerina and the mirror both have magnets so the ballerina needs to be placed on a table that is not affected by magnets (i.e. not metal). The narrow part of the mirror with the magnet is placed on the table next to the ballerina. When the mirror comes closer the ballerina starts to spin.
To determine the orientation of the magnets put the mirror with the long side down to see if the magnetic attracts, repels or applies torque.
The ballerina always spins clockwise.
Arizona Board of Regents Notes:
Webmaster Privacy  
Accessibility References:
Handy for printing record. Links: Movie: Caption:
type word to search
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
VE01_01
3_1
PS F175
1A10.35 Meter stick - 4 sided Graduated in meters, decimeters, centimeters, & millimeters
Aa2
PS F175
1A10.50 Liter Cube/set
Aa2
PS F175
1A10.510 Meter Cube Meter cube frame, stored dismantled
Aa2
PS F175
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.
PS F175
1A10.60 Avogadro's Number box Black 22.4 liter cube
Aa2
PS F175
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.
VE16_12
3_1
PS F175
1A20.25A Dice - ordinary
Aa2
PS F175
1A20.25B Dice - overhead
Aa2
PS F175
1A20.25C Dice - polyhedral
Aa2
PS F175
1A20.25D Dice - large foam
Aa2
PS F175
1A30 Coordinate System
1A30.10A XYZ Coordinate axes Long arrow shafts with label attachments
top
7
PS F175
1A30.10B XYZ Coordinate axes Zometool version
Aa3
PS F175
1A30.10C XYZ Coordinate axes Medium arrow shafts with dull broadheads
cabinet
PS H356
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
PS F175
1A30.30 Polar Coordinates
1A30.40A Chalkboard Globe - Large
Af6
PS H156
1A30.40B Chalkboard Globe - Small
Af6
PS H156
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
Aa3
PS F175
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
3_1
PS F175

Records 1 to 25 of 1978