3 Oscillations & Waves

Meterstick "Kater" Pendulum

Catalog: 
3A15.70B
Location: 
Ba1
As discribed by Randall D. Peters, "Student-Friendly Percision Pendulum", The Physics Teacher, Vol.37, Oct. 1999. A meterstick setup to oscillate about an axis at its upper end and another axis approximately 66.6cm from the first.

Pendulum Man (Chaotic pendulum)

Catalog: 
3A95.520
Location: 
Ba2
A pendulum system that can be configured 68 different ways to demonstrate pendulum motion

Boomwhackers

demonstration image
Catalog: 
3D30.20A
Location: 
Bd1
A collection of eight tubes cut to the length for musical notes (from shortest to longest) C,B,A,G,F,E,D, and C with each note a unique color. There are also caps for each tube to change the end of the tube from an antinode to a node. A musical book is included which is color coded for each note.

Resonance Reeds

This shows the "teeth" that vibrate one at a time depending on the speed.
Catalog: 
3A60.50A
Location: 
Ba3
A brass disk spins very fast. As it slows down the shortest "tooth" vibrates. As it further slows the longer teeth vibrate one at a time. A resonance, or vibrating-reed, tachometer uses a series of consecutively tuned reeds to determine engine speed by indicating the vibration frequency of the machine.

Tacoma Narrows - Video

demonstration image
Catalog: 
3A60.10
Location: 
3_1
Spectacular destruction of a bridge driven at it's natural frequency by the wind.

Resonance Reeds

2nd reed
Catalog: 
3A60.50C
Location: 
Ba3
A set of steel reeds mounted on a common strip which is excited by a variable speed motor with an unbalanced flywheel.

Sweet spot(center of percussion) - Video

demonstration image
Catalog: 
3A15.50C
Location: 
3_1
Video Encyclopedia :Hang a long metal bar by a string from one end. Strike the bar with a mallet at various points.

Kater's pendulum

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

Pulse on a rope - Video

demonstration image
Catalog: 
3B10.10
Location: 
3_1
Video Encyclopedia :A long rope is attached to a wall.

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