CageLab: A low-cost apparatus to demonstrate rotational motion for advanced undergraduates.

Autor/inn/en	Sahyun, S. C.; Siemens, P. J.
Titel	CageLab: A low-cost apparatus to demonstrate rotational motion for advanced undergraduates.
Quelle	In: American journal of physics, 73 (2005) 6, S. 566-570 PDF als Volltext Link als defekt meldenVerfügbarkeit
Sprache	englisch
Dokumenttyp	online; gedruckt; Zeitschriftenaufsatz
ISSN	0002-9505; 1943-2909
DOI	10.1119/1.1791273
Schlagwörter	Experiment; Drehachse; Drehbewegung; Drehmoment; Mechanik; Physik; Rotation
Abstract	CageLab is an inexpensive, easily constructed apparatus for studying rotational motion that was designed as a central example for a unit in our junior-year curriculum. It consists of a rotor suspended so that the direction of its axis is either constrained or approximately free to move through an interesting range of orientations. The rotor's simple construction from wire mesh ~a rectangular cage!, modeling clay ~used to break the cage's symmetry!, and a detachable axle with simple bearings allows students to quantitatively compute its inertial properties starting from their own measurements of lengths and masses. The pendulum-like fixed suspension facilitates observations of the center-of-mass location and inertial moments. The trapeze-like mobile suspension allows observations of motion with spin along nearly arbitrary axes including stable, neutral, and unstable principal axes without using an expensive gimbal. Removing the clay leaves a symmetric rotor for which gravity- induced precession and nutation can be studied. © 2005 American Association of Physics Teachers.
Erfasst von	Arbeitsgruppe Didaktik der Physik, Universität Osnabrück
Update	2005/3