3 Oscillations & Waves

4:1 pendula

The red pendula have equal masses but the length of the string is 4:1. The perio

4:1 pendula

Catalog: 
3A10.14A
Location: 
Ba1
4:1 pendula have 2:1 period. Lengths are 30cm and 120cm.

Coupled pendula

This is not our pendulum but one belonging to A. J. Sievers at Cornell Universit

Coupled pendula

Catalog: 
3A70.20
Location: 
Under-stairs storage
Two pendula are coupled by a plastic tube. Be sure to clamp or hold frame rigidly.

Equal length different masses pendula

Different masses with the same length pendula have the same period for small ang

Equal length different masses pendula

Catalog: 
3A10.17D
Location: 
Bc1
A heavy and light mass of equal length swing with the same period.

Kater's pendulum

Kater's pendulum

Catalog: 
3A15.70
Location: 
Ba1
Kater's pendulum(perforated bar & weights)

Physical Pendula Periods

demonstration image

Physical Pendula Periods

Catalog: 
3A15.20A
Location: 
meter stick rack
Three physical pendula in lengths of 1, 2 and 4 compare period. Meter sticks .5m, 1m and 2m are used.

Chaotic Pendulum, Magnetic Version

Chaotic Pendulum, Magnetic Version

Catalog: 
3A95.52
Location: 
Ba2
A randomly oscillating magnetic pendulum is used to study chaos. The magnets can be moved about or their polarity reversed by flipping them over or can be made stronger by stacking them. A magnet at the end of a rod bounces chaotically across magnets.

Circular motion vs. mass on a spring

Hold the mass at either the bottom or top of the disk and then release the mass

Circular motion vs. mass on a spring

Catalog: 
3A40.10A
Location: 
4-top
The UCM of a rotating disk is compared to the SHM of an oscillating spring. The comparison is shadow projected.

Driven Torsion Pendulum, with variable damping

A table showing different resonance values.

Driven Torsion Pendulum, with variable damping

Catalog: 
3A60.40
Location: 
Ba3
Driven mass on spring & power supply. A motor provides the forcing function that drives a torsion wheel. The labels are in German with Ein and Aus for on and off on the power supply and Fein and Grob for fine and coarse below the tuning knobs.

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