3 Oscillations & Waves

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.

Bell in a Vacuum

Catalog: 
3B30.30A
Location: 
Bc1
An electric bell is placed in an evacuated jar.

Bowling ball pendulum resonance - Video

demonstration image
Catalog: 
3A60.35
Location: 
3_1
Video Encyclopedia :Strike a bowling ball pendulum with random blows, then with blows at the normal frequency.

Melde's vibrating string - Video

demonstration image
Catalog: 
3B22.10
Location: 
3_1
Video Encyclopedia :Three strings driven by the same driver have weights of 0.9:2:8 to produce the first, second, and third harmonics.

Two speaker interference - Video

demonstration image
Catalog: 
3B55.10B
Location: 
3_1
Video Encyclopedia :Speakers in phase are mounted at the ends of a rotatable bar.

Xylophone bars - video

demonstration image
Catalog: 
3D40.10
Location: 
3_1
Video Encyclopedia :Use a microphone and oscilloscope to display the waveforms of various notes on a xylophone.

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.

Quincke's Tube

The path of the sound can be lengthened on one side by pulling the slide like a
Catalog: 
3B55.40
Location: 
The sound from a small speaker branches in two directions then out the horn. The length of one of the paths can be changed by pulling the slide like a trombone. The sound will constructively and destructively add as the slide is pulled.

Driven spring weight - Video

demonstration image
Catalog: 
3A60.43
Location: 
3_1
Video Encyclopedia :Drive a mass hanging from a spring.

Rubber tube standing waves - Video

demonstration image
Catalog: 
3B22.15
Location: 
3_1
Video Encyclopedia :A long rubber tube driven by a variable speed motor.

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