Pendulum with Styrofoam Bob, Large Photogate

 

Code Number: 3A50.44

Demo Title: Damped Pendulum

Condition: Excellent

Principle: Harmonic Damping

Area of Study: Oscillations & Acoustics

Equipment: 

Pendulum with Styrofoam Bob, Large Photogate or Sonic Sensor.

Procedure:

Place a large Syrofoam ball as a pendulum bob on the desired length pendulum string.  Use video analysis or a sonic sensor to plot the data.

References:

  • Richard Ignace, Gary D. Henson, "Impulse Magnetic Damping: Linear Damping of a Pendulum", TPT, Vol. 62, #7, Oct. 2024, p. 587.
  • Rod Cross, "A Simple Method to Estimate Q for a Damped Oscillation", TPT, Vol. 62, #5, May 2024, p. 406.
  • Unofre B. Pili, "Using a Styrofoam Sphere and Video Analysis to Demonstrate the Linearly Resisted Harmonic Oscillator", TPT, Vol. 62, #3, March 2024, p. 196.
3A50.44 - Damped Pendulum