Oscillations and Waves

3A - Oscillations

3B - Wave Motion

3C - Acoustics

3D - Instruments

3E - Sound Reproduction

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3A 10.20 - Three Pendulums
Demonstrates: Pendulum period is independent of mass.
Description: Two pendulums with the same length arm but different masses, a third pendulum with a different length arm as the previous two but with same mass as one of them.
3A 10.30 - Torsional Pendulum
Demonstrates: Torsional oscillation.
Description: Two types: one cylinder, one triangle with screw rods to adjust masses at ends.
3A 15.10 - Physical Pendulum
Demonstrates: A variation of arm type for pendulums.
Description: Two types: meter sticks with hole drilled at ends, metal bars with fixed masses.
3A 20.10 - Mass on a Spring
Demonstrates: Simple harmonic motion.
Description: Spring and various masses.
3A 40.10 - Harmonic Motion and Rotating Marker.
Demonstrates: Relationship between harmonic and oscillation motion.
Description: Light source, mass on a spring, circular disk with paint cap. A specific oscillating mass for any given spring will appear to be in synch with the rotation of the disk.
3A 50.11 - Dampened Texas Tower
3A 50.11 - Dampened Texas Tower
Demonstrates: Dampened Oscillation
Description: Texas Tower with cylinder of water to dampen mass on spring oscillation. Water will dampen system from reaching resonance.
3A 60.10 - Tacoma Narrows Video
Demonstrates: Driven mechanical resonance.
Description: Film of the Tacoma Narrows Bridge collapse.
3A 60.20 - Texas Tower
Demonstrates: Resonance.
Description: Variable oscillation driven mass and spring.
3A 70.10 - Wilberforce Pendulum
Demonstrates: Simultaneous torsional and oscillational motion.
Description: Cylindrical mass painted black and white and fixed to a spring.
3A 70.20 - Coupled Pendulum (Large)
Demonstrates: Coupled harmonic motion.
Description: Two side by side pendulums connected together by a spring at the mass ends.
3A 70.30 - Coupled Pendulum (Small)
Demonstrates: Coupled harmonic motion.
Description: Two side by side pendulums connected together by a spring at the mass ends.
3A 95.52 - Chaotic Pendulum (Old Model)
Demonstrates: Chaotic motion.
Description: Two pendulums that are attached at the hip.