7D30.90 - Orbits on the Overhead/Mass Spectrometer Model
See also 1L20.66 in Mechanics and 1L20.66/7D30.90 in Astronomy.
Place the Plexiglas plate with attached ring magnet on the overhead projector. Roll one of the ball bearings at a grazing angle across the ring magnet. Watch the ball bearing either be deflected to a different direction, or orbit the magnet. The ramp can be attached to several places on the plate and will be a great help in controlling ball bearing speed and direction or grazing angle.
- Michel Gagnon, "A Mass Spectrometer Simulator in Your Computer", TPT, Vol. 50, #9, Dec. 2012, p. 553.
- Matthew Lowry, "Teaching Universal Gravitation with Vector Games", TPT, Vol. 46, #9, Dec. 2008, p. 519.
- Steve Dail, "Angular Momentum Demo Using Magnetic Neodymium Spheres", TPT, Vol. 44, #6, Sept. 2006, p. 391.
- S - 190: "Atoms, Molecules and Solids", DICK and RAE Physics Demo Notebook.
- David Kutliroff, "A Mass Spectrograph Analog", 101 Classroom Demonstrations and Experiments for Teaching Physics, p. 219.
- Borislaw Bilash II, David Maiullo, "Model of Mass Spectrometer: A Demo A Day: A Year of Physics Demonstrations, p. 293.
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