PIRA |
Physics Lecture Demonstration MECHANICS (1E) - Relative Motion |
Last Page Update: 07/08/03
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PIRA |
Physics Lecture Demonstration MECHANICS (1E) - Relative Motion |
| Last Page Update: 07/08/03
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1E-Relative Motion
10. Moving Reference Frames |
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| DCS # | Demonstration | Abstract/Description |
| 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 caterpiller | 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. |
| DCS # | Demonstration | Abstract/Description |
| 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 ellipicity. |
| 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 demostrations | 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. |
| DCS # | Demonstration | Abstract/Description |
| 1E30.10 | draw the coriolis curve - vertical | Mount a rotating disk vertically, drive a pen on a cart at constant velocity in front of the disk. The speeds of the disk and cart are variable. |
| 1E30.11 | draw the coriolis curve | Place a poster board circle on a turntable move a magic marker across in a straight line. |
| 1E30.11 | draw the curve | Move a magic marker in a straight line across a rotating disc. |
| 1E30.11 | draw the curve | A cart on a track with a marker passes in front of and draws on a large disc that can be rotated. |
| 1E30.12 | coriolis ink drop letter | AJP 50(4),381 should have referenced AJP 27(6),429. |
| 1E30.12 | coriolis | Turn a nearly vertical sheet as a drop of ink is running down it. |
| 1E30.13 | coriolis machine | A clear plastic disk is placed over a inertial reference frame marked with a constant velocity path. Draw marks on the plastic disk while turning through equal angles. |
| 1E30.14 | coriolis spark trace | The PSSC air puck is used to give a spark trace on a rotating table. |
| 1E30.20 | coriolis gun | A spring loaded gun at the center of a 4' disc is shot at a target first at rest and then while spinning. |
| 1E30.20 | coriolis gun | A clamped dart gun is fired by an instructor sitting on a revolving chair into a target board. |
| 1E30.20 | coriolis gun | A spring gun at the center of a rotating table fires into a target at the edge. |
| 1E30.21 | coriolis | Go to a merry-go-round and walk on it. You will feel a very strange "force". |
| 1E30.24 | spinning Coriolis globe | A ball on a string is threaded through the pole of a spinning globe. Pull on the string and the ball moves to higher latitudes and crosses the latitude lines. |
| 1E30.26 | coriolis dish and TV | A ball oscillates in a spherical dish at rest, and follows various curved paths when the dish is rotated at different speeds. A TV camera is mounted to the rotating frame. More. |
| 1E30.27 | coriolis rotating platform and tv | A puck is launched on a rotating platform and the motion is followed with a TV |
| 1E30.28 | Coriolis effect | Roll a ball across a slowly rotating turntable. |
| 1E30.30 | leaky bucket on turntable | A can with a hole is mounted above a rotating table. As the table turns, the stream of water is deflected. |
| 1E30.32 | drop ball on turntable | A mass falls on a disc first while it is rotating and then when it is stationary. Difference in point of impact is noted. |
| 1E30.33 | coriolis trajectory | A ball describing an arc is released first in a stationary coordination system and then in a rotating system. |
| 1E30.34 | coriolis water table | A flat board rotates in a horizontal plane with a flexible tube full of flowing water running lengthwise. The tube deflects upon rotation. |
| 1E30.34 | coriolis water table | A flexible rubber tube with water flowing in it is stretched across a disc which can be rotated. The tube deflects when rotated. |
| 1E30.34 | coriolis water table | A flexible rubber tube with water flowing in it is stretched across a disc which can be rotated. The tube deflects. |
| 1E30.35 | rotating water flow table | Food coloring used to mark flow is introduced at the edges of a circular rotating tank with a center drain hole. A rotating overhead TV camera allows motion in the rotating frame to be viewed. |
| 1E30.36 | coriolis | A pan of water on a turntable has a recirculating pump with an inlet and exit of opposite sides of the pan. Floats above these areas rotate in opposite directions as the pan of water is spun. |
| 1E30.50 | rotating TV camera | |
| 1E30.51 | rotating TV camera | A TV camera is rotated in front of an oscilloscope displaying a slow ellipse. Vary the camera rotation. |
| 1E30.61 | vacuum cleaner | Cover the exhaust of an old vacuum: the current decreases as the RPM increases. Demonstrates transformation of vectors from a moving coordinate system to a rest frame. In one frame the torque does no work, in the other with open exhaust torque is responsible for the entire power. |
| 1E30.71 | spinning dancer - coriolis analysis | The spinning dancer, usually treated as an angular momentum problem, is used as a coriolis example. |