| DCS # | DEMONSTRATION | REFERENCE | ABSTRACT |
|---|
| 3B10.00 | Transverse Pulses and Waves | | |
| 3B10.01 | Klein-Gordon equation wave model | AJP 37(1),52 | A physical realization of the Klein-Gordon equation. Sort of looks like half a bell labs model but the rods hang down out of a horizontal coil spring. |
| 3B10.05 | the wave - transverse | PIRA 1000 | |
| 3B10.05 | the wave - transverse | 3B10.05 | Have students in the class do the standard stadium wave. |
| 3B10.10 | pulse on a rope | PIRA 200 | Give a heavy peice of stretched rope a quick pulse. |
| 3B10.10 | pulse on a rope | 3B10.10 | Create pulses and waves by hand on a long rope stretched across the lecture bench. |
| 3B10.10 | pulse on a rope | Sa-3 | A heavy piece of stretched rope is given a quick pulse. |
| 3B10.10 | shake a rope | S-34 | Fix one end of a rope and shake the other. |
| 3B10.10 | pulse on a spring | S-2a.1 | Two students stretch a spring and one student hits it to give a transverse pulse. |
| 3B10.10 | wave on a rope | Disc 09-09 | A long rope is attached to a wall. |
| 3B10.11 | slow pulse | AJP 35(3),xxi | Epoxy split-shot fishing sinkers on model airplane elastic (1/16" x 3/16") every inch to give a wave speed of about 15 m/sec. |
| 3B10.12 | speed of a pulse - stretched string | AJP 43(7),651 | Mount two small pieces of paper on a stretched string so they will interrupt a photocell gate when a pulse from plucking passes by. |
| 3B10.12 | speed of a pulse in a rope | 18-3.6 | Microswitches at two ends of a stretcher rope trigger a timer as a pulse passes. Weights are used at one end to vary the tension. |
| 3B10.13 | pulse speed on a string | TPT 28(1),57 | A pulse on a steel string passes between two magnets and an oscilloscope is used to measure the time between voltage peaks due to the passing pulse. |
| 3B10.15 | tension dependence on wave speed | PIRA 1000 | |
| 3B10.15 | rope | S-23 | Use pairs of ropes or tubes to compare speed of pulses as tension and mass per unit length are changed. |
| 3B10.15 | tension dependence of wave speed | Disc 09-11 | Hold a rubber tube under different tensions and send a pulse along it. |
| 3B10.16 | speed of torsional waves | PIRA 1000 | |
| 3B10.16 | wave speed | Disc 09-13 | Show the difference in wave speed and pulse shape on Shive machines with long and short rods. |
| 3B10.17 | speed of a slinky pulse | PIRA 1000 | |
| 3B10.17 | speed of a slinky pulse | 3B10.17 | Critically damp one end of a stretched slinky by hooking over a steel bar. Measure mass per unit length, time a pulse, etc. |
| 3B10.18 | speed of pulses on ropes | PIRA 1000 | |
| 3B10.18 | speed of a pulse | 3B10.18 | Pluck two ropes of different mass per unit length, each under the same tension, and compare the speed of the pulses. |
| 3B10.19 | chain | 18-8.1 | Transverse pulses and waves are demonstrated on a tilted board. ALSO - hanging slinky. |
| 3B10.20 | slinky on the table | PIRA 500 | |
| 3B10.20 | slinky on the table | 3B10.20 | Create pulses and waves by hand on a slinky stretched down the lecture bench. |
| 3B10.20 | slinky on the table | Sa-14 | A transverse pulse is sent down a slinky on the table. |
| 3B10.25 | standing pulse | PIRA 1000 | |
| 3B10.25 | standing pulse | 3B10.25 | Same as Sa-5. |
| 3B10.25 | standing pulse | Sa-5 | A pulse in a loaded rubber tube driven by a motorized pulley remains almost stationary. |
| 3B10.25 | standing pulse | 18-3.1 | An endless belt running at constant speed over two pulleys is struck with a sharp blow and the pulse is nearly stationary. Picture. Reference AJP 16(4)248; Sutton p.139. |
| 3B10.25 | stationary pulse | 18-3.3 | A 12' loop of bead chain is suspended over and driven by a large motorized pulley. Ball bearing rollers deform the chain and the pulse moves slowly. |
| 3B10.25 | stopping a pulse | S-29 | Run a belt over a pulley at a high enough speed so a wave traveling along it appears to stand still. |
| 3B10.25 | stationary transverse wave | S-2f | An endless belt running over two pulleys. Reference: AJP 16(4),248. |
| 3B10.25 | pulse on moving chain | Disc 09-10 | A motor drives a large loop of chain suspended between horizontal pulleys. |
| 3B10.26 | stopping a pulse | S-30 | Suspend a heavy cord formed into a circle from strings below a rotating disc. Spin at speed sufficient that a pulse will appear stationary. |
| 3B10.30 | Shive (Bell Labs) wave model | PIRA 200 | Excite a horizontal torsional wave machine by hand. The other end is open, clamped, or critically damped. |
| 3B10.30 | Bell Labs wave model | 3B10.30 | Excite a horizontal torsional wave machine by hand. The other end is open, clamped, or critically damped. |
| 3B10.30 | Bell Labs wave machine | AJP 31(11),xvi | Bell Telephone Company wave machine - source of film, booklet, and apparatus (as of 1963). |
| 3B10.30 | Bell Labs model | 18-2.1 | A long article on the Bell Labs torsional wave model. |
| 3B10.30 | torsional waves | Disc 09-12 | Show a torsional wave on a Shive wave machine. |
| 3B10.31 | toothpick wave machine | AJP 37(1),104 | A method of looping No. 32 rubber bands through toothpicks to make a traveling wave machine. |
| 3B10.31 | horizontal torsion bars | AJP 49(4),375 | Use soda straws and seamless elastic to make an inexpensive bell wave motion machine. |
| 3B10.31 | horizontal torsion bars | 18-8.3 | Wood dowels are mounted to a section of steel tape. |
| 3B10.32 | traveling wave | Sa-6 | A torsion wave machine hangs from the ceiling. Also, a rope from the ceiling. |
| 3B10.40 | Kelvin wave apparatus | PIRA 1000 | |
| 3B10.40 | Kelvin wave machine | S-31 | A ladder style hanging wave apparatus with strings for the two sides. |
| 3B10.41 | stationary pulse - lariet | 18-3.2 | A variable speed motor driven brass chain lariat is struck with a stick and the pulse is stationary at all speeds. simpler version also shown. Diagram and construction details. |
| 3B10.41 | hanging torsional waves | 18-2.2 | A vertical torsion wave machine made with electrical terminal clips on a rubber tape. Pictures. |
| 3B10.45 | damped Kelvin wave machine | S-32 | A long steel band with metal crossbars carrying balls on the ends is suspended from a copper disc between the poles of an electromagnet. |
| 3B10.50 | vertical rods wave model | PIRA 500 | |
| 3B10.50 | vertical rods wave model | S-26 | A wave template is slid under an array of vertical rods. |
| 3B10.51 | transverse wave machine | TPT 28(7),508 | A cheap modern version of a nineteenth century wave machine with vertical rods driven from the bottom by an eccentric. |
| 3B10.51 | vertical rods wave model | S-27 | The bottoms of a series of identical rods rest on a series of discs mounted eccentrically on a common shaft. The tops of the rods execute a wave when the shaft is rotated. |
| 3B10.53 | wave generator | S-2a.3 | Picture of a series of balls at different phase angles that seem to be connected to rotating rods. Demonstrates both transverse and longitudinal waves. |
| 3B10.55 | transverse waves on the overhead | TPT 3(8),376 | Four demos: a rotating coil, wave templates, a sinusoidal wave plotter, and a superposition wave adder. |
| 3B10.56 | project rotating wire | 18-8.4 | A wire spiral is rotated by a motor and projected to demonstrate transverse waves. Construction details. |
| 3B10.60 | water waves | S-22 | Water waves in a long trough with glass sides. Put a cork in to show particle motion. Show standing waves with proper timing. |
| 3B10.65 | traveling wave on a scope | TPT 28(5),337 | Show a traveling wave near 60 Hz on a line triggered scope and switch to internal triggering to stop the wave, then hold a slit in front of the traveling wave. |
| 3B10.70 | pendulum waves | S-38 | A row of rods with balls on the ends are hung from pivots that can swing either in the plane of the row or perpendicular to it. Adjustable collars permit varied coupling. Read it. |
| 3B10.75 | pendulum waves | PIRA 1000 | |
| 3B10.75 | uncoupled pendulum waves | AJP 59(2),186 | A set of pendula, started in phase, exhibit a sequence of traveling waves, standing waves, and random motion. Each in the set of successively shorter pendula executes one additional oscillation in the same time interval. |
| 3B10.75 | pendulum waves | Disc 08-25 | The apparatus from AJP 59(2),186. |
| 3B10.80 | solitons in a wave tank | AJP 52(9),826 | A 5.5 m wave tank is described along with analysis. |
| 3B10.85 | non-recurrent wavefronts | 3B10.85 | See Mechanical Universe #18 ch 3-5, film loop Ealing #217. |