![]() Stork, and David Galloway, The rolling unrestrained brachistochrone, AJP 55, 844-847 (1987). ![]() Stork, Making New Problems from Old Ones, TPT 24, 341-345 (1986). Stork, Ju-xing Yang, and Chris Stover, The unrestrained brachistochrone, AJP 54, 992-997 (1986).ĭavid G. Denman, Remarks on brachistochrone - tautochrone problems, AJP 53, 224-227 (1985).ĭavid G. Atanackovic, The brachistochrone for a material point with arbitrary initial velocity, AJP 46, 1274-1275 (1978).ĭavid G. Giulio Venezian, Terrestrial Brachistochrone, AJP 34, 701-704 (1966). Plane: Rhythms of the spheres, AJP 64, 541-546 (1996).Ĭ2-11: RACING BALLS Set of sketches for UMD racing Balls demonstration.Įric Rogers, Brachistochrone and Tautochrone Curves for Rolling Bodies, AJP 14, 249-252 (1946). Crawford, Rolling and slipping down Galileo's inclined Freely Falling Bodies.Ĭ2-08: FREE FALL - STROBE PHOTOS Information Sheet.ĮXPERIMENT Frank S. Sutton, Demonstration Experiments in Physics, Demonstration M-85. Tom Callaway and James Dennis, Listening to Free Fall with the MacRecorder, TPT 32, 88-89 (1994). Edge, Dropping a String of Marbles, TPT 16, 233, (1978). Lopez, Don't Use Airtracks to Measure Gravity Acceleration, TPT 30, 48-54 (1992).Ĭ2-04: FREE FALL WITH PHOTOCELL GATES None.Ĭ2-05: FREE FALL- USING FILMLOOPS Information Sheet.Ĭ2-06: BALL DROP ON ROPE - EQUAL AND UNEQUAL INTERVALS R. Hughes, Low-cost easily constructed dual-photogate timer, AJP 61, 951-953 (1993).Ĭ2-02: AIR TRACK - DIRECT MEASUREMENT OF ACCELERATION None.Ĭ2-03: AIR TRACK - UNIFORM ACCELERATION Letter: Lecture-Room Measurement of the Value of g, AJP 20, 312 (1952).Įdward Kluk and John L. Nobuo Naba, Recording of a Glider's Motion Using a Ladder of Light, AJP 42 (409-410 (1974). Zypman, Moments to remember - The conditions for equating torque and rate of change of momentum, AJP 58, 41-43 (1990).Ĭ2-01: AIR TRACK - CONSTANT VELOCITY AND UNIFORM ACCELERATION Information Sheet. Mallinckrodt, The Incipient Slip of a Tipping Object, AAPT Announcer, December 1988, page 146.įredy R. ![]() Oscillation of rod-shaped satellite as an example, AJP 53, 1002-1004 (1985).Ĭ1-02: CENTER OF MASS MOTION - PLUMBER'S HELPER None.Ĭ1-03: CENTER OF MASS MOTION - CLOWN None.Ĭ1-04: CENTER OF MASS MOTION - BEAR ON TIGHTĬ1-11: AIR TRACK - CENTER OF MASS PENDULUM None.Ĭ1-12: AIR TRACK - CENTER OF MASS OF COUPLED GLIDERS None.Ĭ1-13: AIR TRACK - REDUCED MASS Information Sheet.Ĭ1-21: AIR TABLE - TOPPLING STICK A. Edge, Distinction between center of mass and center of gravity Department of Education through the Small Business Innovation Research (SBIR) program.REFERENCES REFERENCES SECTION C C1: CENTER OF MASS MOTIONĬ1-01: CENTER OF MASS MOTION - BARBELL R. with partial funding provided under contract numbers ED-07-CO-0040 and ED-IES-11-C-0029 from the Institute of Education Sciences in the U.S. Polyhedron Physics was developed by Polyhedron Learning Media, Inc. Preliminary results suggest increased learning by students using the virtual labs as supplements to hands-on. Formative and summative evaluations showed no significant difference in learning between students using the virtual labs and those using hands-on labs. They are also a suitable option for students in distance learning and home school situations. These labs can serve as replacements for hands-on labs, especially when equipment is not available, or as supplements to hands-on labs. These features allow students to use standard data analysis and error analysis techniques to report on their own unique data, just as if the experiment had been performed using hands-on equipment. The experimental data produced by the simulations are realistic, including random and systematic errors. In addition to a 3D simulation that produces realistic data, each lab includes introductory videos, background theory, experimental procedure, analysis and reporting tools, pre-lab quiz, post-lab questions, and teacher support materials. For those who’d prefer to develop their own experiments, the PP Free Fall Apparatus app features a similar apparatus without lab procedures and other supporting materials. To see how they work, try the FREE PP+ Newton’s 2nd Law lab. The Gravity lab uses a position sensor to examine the relationship between the position, velocity, and acceleration of a free-falling body.It is part of Polyhedron Physics Plus, a set of 24 iPad apps for use in the classroom. Be sure to check out the entire Polyhedron Physics Plus collection, available as individual apps or in app bundles.
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