https://physlab-wiki.com/ 2026-04-17T11:38:08+00:00 https://physlab-wiki.com/ https://physlab-wiki.com/lib/tpl/UChicago/images/favicon.ico text/html 2021-09-15T12:11:54+00:00 Anonymous (anonymous@undisclosed.example.com) https://physlab-wiki.com/physicsdemos/mechanics/oscillations/coupled_pendulum?rev=1631722314&do=diff Coupled Pendulum Three identical pendula connected with light springs. P1 PIRA DCS 3A70.00 text/html 2021-11-05T17:57:00+00:00 Anonymous (anonymous@undisclosed.example.com) https://physlab-wiki.com/physicsdemos/mechanics/oscillations/double_pendulum?rev=1636149420&do=diff Double Pendulum Very violent - warn demonstrator to be careful and to make sure students are careful when using. A double physical pendulum displays chaotic behavior. Prepared rack PIRA DCS 3A95.52 text/html 2023-03-24T17:23:39+00:00 Anonymous (anonymous@undisclosed.example.com) https://physlab-wiki.com/physicsdemos/mechanics/oscillations/driven_and_damped_torsional_pendulum?rev=1679693019&do=diff Driven and Damped Torsional Pendulum A torsional pendulum is driven by a variable-speed motor. The amplitude of the oscillations increases dramatically when the pendulum is driven at its resonant frequency. The body of the pendulum consists of copper and passes through a gap in a solenoid. Applying a current to the solenoid damps the motion of the pendulum due to the creation of eddy currents in the copper. text/html 2022-07-25T14:07:11+00:00 Anonymous (anonymous@undisclosed.example.com) https://physlab-wiki.com/physicsdemos/mechanics/oscillations/driven_mass_on_a_spring?rev=1658772431&do=diff Driven Mass on a Spring A spring with a mass attached is hung by a string that is wrapped over a pulley and connected to an armature rotated by a variable-speed motor. Operation of the motor will drive the spring-mass system and cause it to oscillate. If the motor is run at the mass-spring system's resonance frequency, the amplitude of the motion becomes so great that the string jumps off of the pulley. text/html 2021-09-15T12:14:29+00:00 Anonymous (anonymous@undisclosed.example.com) https://physlab-wiki.com/physicsdemos/mechanics/oscillations/hookes_law?rev=1631722469&do=diff Hooke's Law Several known masses are suspended from an extension spring to demonstrate the spring's linear response to the applied force. The arrangement may also used as an example of the simple harmonic oscillator. Prepared rack set-up details text/html 2023-09-11T15:27:37+00:00 Anonymous (anonymous@undisclosed.example.com) https://physlab-wiki.com/physicsdemos/mechanics/oscillations/normal_modes_on_an_air_track?rev=1694460457&do=diff Normal Modes on an Air Track Two or three air track carts connected to each other and the ends of the track by identical springs are made to oscillate in any of their normal modes. Setup Similar to Air Track Collisions F1 set-up details PIRA DCS 3A75.10 text/html 2021-09-15T12:17:54+00:00 Anonymous (anonymous@undisclosed.example.com) https://physlab-wiki.com/physicsdemos/mechanics/oscillations/oscillating_ring?rev=1631722674&do=diff Oscillating Ring A ring on a knife edge serves as a physical pendulum and is shown in comparison with a simple pendulum with length equal to diameter of ring. The equality of the periods can be observed. prepared demos rack set-up details text/html 2021-09-15T12:20:15+00:00 Anonymous (anonymous@undisclosed.example.com) https://physlab-wiki.com/physicsdemos/mechanics/oscillations/pendulum_and_turntable?rev=1631722815&do=diff Pendulum and Turntable A pendulum is set into motion above a motorized turntable on top of which a vertical post is mounted. A point light source is used to project an image of the pendulum and post in motion together. One can see that the motion of the pendulum is very similar to that of the post's shadow. text/html 2024-10-28T12:02:19+00:00 Anonymous (anonymous@undisclosed.example.com) https://physlab-wiki.com/physicsdemos/mechanics/oscillations/push-me-pull-me?rev=1730131339&do=diff Push-me Pull-me Using the air track, two carts are attached to each other with a spring that can expand and compress. When you push the system, the carts oscillate around the center of mass, which moves in a straight path. The system eventually comes to a stop as the spring dampens the system's kinetic energy. text/html 2022-07-25T14:13:01+00:00 Anonymous (anonymous@undisclosed.example.com) https://physlab-wiki.com/physicsdemos/mechanics/oscillations/self-synchronizing_metronomes?rev=1658772781&do=diff Self-Synchronizing Metronomes Several metronomes set at the same frequency but running initially out of phase self-synchronize due to the coupling permitted by a freely rolling base. M1 Setup To set up: * wind up the metronomes fully * place metronomes on top of the board on the marked locations text/html 2021-09-15T12:22:55+00:00 Anonymous (anonymous@undisclosed.example.com) https://physlab-wiki.com/physicsdemos/mechanics/oscillations/simple_pendulum?rev=1631722975&do=diff Simple Pendulum A mass is suspended with a light string. Prepared rack, A1, F2 set-up details PIRA DCS 3A10.10