Relative Motion
PIRA classification 1E
1E10. Moving Reference Frames
PIRA # |
Demonstration Name |
Abstract |
1E10.10 |
crossing the river |
Pull a sheet of wrapping paper along the lecture bench while a toy wind up tractor crosses the paper. |
1E10.10 |
crossing the river |
A long sheet of paper (river) is pulled along the table by winding on a motorized shaft. A motorized boat is set to cross the river. Marking pens trace the paths. |
1E10.10 |
crossing the river |
A wind up toy is placed on a sheet of cardboard that is pulled along the table. |
1E10.10 |
crossing the river |
A small mechanical toy moves across a rug which is pulled down the lecture table. |
1E10.10 |
bull dozer on moving sheet (2D) |
The bulldozer moves across a sheet moving at half the speed of the bulldozer or at the same speed. |
1E10.11 |
toy tractor drive |
On using toy tractors in kinematics demonstrations. |
1E10.15 |
moving blackboard |
Using a large movable reference frame on wheels and a walking student, equations of relative speed can be deduced by non science majors. |
1E10.20 |
Frames of Reference film |
The classic film available on video disc permits use of selective parts. |
1E10.22 |
photographing relative velocity |
Toy bulldozers, blinkies, and a camera give a photographic record of relative velocities. |
1E10.23 |
Galilean relativity |
A Polaroid camera and blinky, each on a cart pushed by a toy caterpillar, show the various cases of relative motion. |
1E10.31 |
stick on the caterpillar |
A small stick placed on the top tread of a toy caterpillar moves twice as fast as the toy. |
1E10.41 |
inertial reference frames |
Two X-Y axes, one on a moving cart, and "cord" vectors are painted with fluorescent paint and viewed in black light. |
1E10.41 |
inertial reference frames |
Complicated. Look it up. |
1E20. Rotating Reference Frames
PIRA # |
Demonstration Name |
Abstract |
1E20.10 |
Foucault pendulum |
A ceiling mounted pendulum swings freely. The change in path is noted at the end of the class period. |
1E20.10 |
Foucault pendulum |
Suspension for a large (120# - 36') non driven Foucault pendulum. |
1E20.10 |
Foucault pendulum |
A large pendulum hung from the ceiling swings for an hour. |
1E20.10 |
Foucault pendulum |
Optical arrangement for projecting the Foucault pendulum motion. |
1E20.10 |
Foucault pendulum |
Permanent corridor demonstration as described in Scientific American, vol 210, Feb. 64, 132-9. |
1E20.10 |
Foucault pendulum |
Look at the plane of swing at six ten minute intervals. |
1E20.11 |
short Foucault pendulum |
Pictures and a circuit diagram for a well done short Foucault pendulum. |
1E20.11 |
short Foucault pendulum |
A 70 cm pendulum with a method of nullifying the precession due to ellipticity. |
1E20.11 |
Foucault pendulum |
A Foucault pendulum driver for limited space exhibits. |
1E20.11 |
short, continuous Foucault pendulum |
Modification of the AJP 46,384 (1978) pendulum to make it portable so it can be moved into lecture rooms for demonstration. |
1E20.11 |
Foucault pendulum |
Plans for a very short (50 cm) Foucault pendulum. |
1E20.11 |
Foucault pendulum |
Several novel features that can be incorporated in the design of a short Foucault pendulum to make construction and operation relatively simple. |
1E20.12 |
time lapse Foucault cycle |
The author will provide a videotape of a complete time lapsed cycle of the Foucault pendulum filmed at the Center of Science and Industry in Columbus for preview and copying. |
1E20.13 |
Foucault pendulum |
A 2 meter Foucault pendulum with a Charron ring drive. |
1E20.14 |
Foucault pendulum |
The support wire for a 2.8 meter Foucault pendulum is lengthened by heating at the end of each swing. |
1E20.14 |
Foucault pendulum |
Foucault pendulum drive mechanisms. |
1E20.15 |
Foucault pendulum drive |
An electromagnet is placed below the equilibrium position of the bob. Circuit for the drive is given. |
1E20.16 |
Foucault pendulum |
An optical projection system to show the deflection of a Foucault pendulum after 100 oscillations. |
1E20.16 |
Foucault pendulum |
General text about the Foucault pendulum. |
1E20.19 |
Foucault pendulum - Onnes experiment |
A review of Onnes' analysis that led to the first properly functioning Foucault pendulum. More stuff. |
1E20.19 |
general and historical article |
Some discussion of a current murder novel, some history of Foucault's work, etc. |
1E20.20 |
Foucault pendulum model |
A pendulum is mounted on a rotating turntable. |
1E20.20 |
Foucault pendulum model, etc |
Build a simple model of the Foucault pendulum and demonstrate the Coriolis effect by the curved trace method. |
1E20.20 |
Foucault pendulum model |
A simple pendulum supported above the center of a turntable. |
1E20.20 |
Foucault pendulum model |
A simple pendulum hanging from a rotating platform. |
1E20.20 |
Foucault pendulum model |
Picture of a nice Foucault pendulum model. |
1E20.21 |
rotating frame |
A monkey puppet sits on a rotating reference frame to help the student visualize a non-inertial frame. |
1E20.22 |
Foucault pendulum model |
Sit on a rotating chair with a table on your lab. A pendulum releasing ink marks a clear pattern on the paper. |
1E20.26 |
geometric model |
A geometrical model helps correct some common misconceptions about the plane of oscillation of the Foucault pendulum. |
1E20.27 |
Foucault pendulum |
Excellent diagram explaining the variation of rotation of the Foucault pendulum with latitude |
1E20.28 |
Foucault pendulum precession |
Derivation of the Foucault pendulum period shows that no correction factor is needed for (1 m) lengths. Contradicts C.L.Strong, Sci.Am. 210,136 (1964). |
1E20.30 |
Foucault pendulum latitude model |
A vibrating elastic steel wire pendulum demonstrates how the rotation of the plane of oscillation depends on the latitude. |
1E20.35 |
Foucault pendulum latitude model |
A ball on rod pendulum set at 45 degrees latitude can be driven by a solenoid inside the globe. |
1E20.35 |
Foucault pendulum model |
An electromagnet inside a globe drives a small pendulum at a selected latitude. Construction details p.592. |
1E20.40 |
Theory and two demonstrations |
The concept of a locally inertial frame is used to study motion in accelerated frames. Two demonstrations are presented. |
1E20.50 |
rotating room |
Design for a rotating room that seats four at a table, and has four possible speeds. |
1E20.50 |
motion room |
A rotating motion room that holds four students. |
1E20.50 |
catch on a rotating platform |
Students try to play catch on a large rotating system. Other possibilities for the apparatus are discussed. |
1E20.51 |
rotating coordinate frame visualizer |
Experiments performed on a rotating frame are projected onto a screen through a rotating dove prism. Centrifugal force, Coriolis force, angular acceleration, cyclones and anticyclones, Foucault pendulum, etc. |
1E30. Coriolis Effect
PIRA # |
Demonstration Name |
Abstract |
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