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.

Organ pipes, open & closed - Video

demonstration image
Catalog: 
3D32.25
Location: 
3_1
Video Encyclopedia :Three organ pipes, open and closed.

Two speaker interference

An LED Bar Graph displays the intensity of the sound from the speakers. A power
Catalog: 
3B55.10A
Location: 
West of cab. 3
Wave interference from two speakers is displayed on an LED bar graph. The apparatus is on wheels and can be rotated so that students can hear the different sound levels for different angles.

Beats with speaker & oscilloscope - Video

demonstration image
Catalog: 
3B60.20A
Location: 
3_1
Video Encyclopedia :Two function generators are used to make beats that are displayed on a scope and amplified to a speaker.

Phase shift - Video

demonstration image
Catalog: 
3A40.65
Location: 
3_1
Video Encyclopedia :Shadow project two balls mounted on the edge of a disc. Vary the angle between the balls to vary the phase shift.

Hanging slinky - Video

demonstration image
Catalog: 
3B20.10C
Location: 
3_1
Video Encyclopedia :Show longitudinal waves on a bifilar suspended slinky with paper flags every fifth coil.

Doppler effect - Video

demonstration image
Catalog: 
3B40.10B
Location: 
3_1
Video Encyclopedia :Mount two speakers on a rotating frame and attach to an audio oscillator through slip rings.

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