3A70.35 • Damped Oscillations: Damped Motion

Photo shows the demonstration used at the University of Texas at Austin.

Concepts Conveyed:

• Underdamped oscillation: water
• Critically damped oscillation: oil (can be compared to motor oil in a car)
• Overdamped oscillation: aloe vera gel
• Different Q values in oscillation resulting from different viscosities.

Instructions / Notes:

• Release each mass with the bottom edge aligned with the top of the graduated cylinder.

Demo Staff:

• Be CAREFUL not to tip over the glass graduated cylinders.
• Clamp spring apparatus to table.
• Leave masses on table, not attached to the springs.
• Ensure that graduated cylinders are filled to 900 mL.
• After use, thoroughly clean masses to avoid potential damage, and put the caps back on the cylinders before storage.

Last updated on July 25, 2024