3 Oscillations & Waves

Doppler Rocket

In the circular mode the rocketis swung over your head.
Catalog: 
3B40.103
Location: 
Bc1
The Doppler shift can be produced with either circular or horizontal motion.

Ruben's Tube

demonstration image
Catalog: 
3D30.50
Location: 
between 17 & 18
"NOTE--THIS DEMO IS CURRENTLY UNAVAILABLE" A gas filled tube with holes along its top and a speaker at one end. Flames from the top indicate where the nodes and antinodes are of a standing wave.

Speaker and Baffle

A small speaker is much louder when placed behind this baffle.
Catalog: 
3B55.30
Location: 
Bc2
Music is played through a small, cheap speaker. The speaker is first held in the hand and then placed behind a small hole in a baffle, with dramatic improvement in sound quality.

Torsion pendulum: moment of inertia on the period

The inertia of many shapes can be determined on the torsion pendulum.
Catalog: 
3A10.30A
Location: 
Ac6
Various combinations of masses and moments of inertia can be placed on the platform to study the effect of changing the moment of inertia on the period of rotational SHM. This one is adequate for quantitative measurements.

Guitar Sound and Data Studio

A tuning fork for "F" 330 Hz is used to compare with the first string of the gui
Catalog: 
3D20.21B
Location: 
A microphone reconds F from a tuning fork. This is then compared to the note F played on the first string of the guitar.

Wilberforce pendulum

The motion sensor and the laser switch are mounted at the bottom.
Catalog: 
3A70.10B
Location: 
Ba3
Energy transfers between vertical and torsional modes.

Singing rods

demonstration image
Catalog: 
3D40.20A
Location: 
Between Cabs.19 & 20
Hold a long aluminum rod at various points and stroke with rosined fingers.

Coupled pendula

This is not our pendulum but one belonging to A. J. Sievers at Cornell Universit
Catalog: 
3A70.20
Location: 
Under-stairs storage
Two pendula are coupled by a plastic tube. Be sure to clamp or hold frame rigidly.

Beaker Breaker

The natural resonance frequency of the goblet can be easily detected by striking
Catalog: 
3D40.55A
Location: 
A glass object (wine goblet, beaker, etc) is broken with sound.

Kater's pendulum

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

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