3 Oscillations & Waves

Periodic non-simple harm. motion-Video

demonstration image
Catalog: 
3A95.38
Location: 
3_1
Video Encyclopedia :A large pendulum drives a restricted vertical pendulum.

Spring wave reflection - Video

demonstration image
Catalog: 
3B25.25B
Location: 
3_1
Video Encyclopedia :Reflections from a long horizontal brass spring with fixed and free ends.

Modes of string oscill.(sonometer) - Video

demonstration image
Catalog: 
3D20.20
Location: 
3_1
Video Encyclopedia :An electromagnetic pickup is used to display the waveform of the sonometer string on an oscilloscope.

Tuning forks - Video

demonstration image
Catalog: 
3D46.16
Location: 
3_1
Video Encyclopedia :Use a microphone and oscilloscope to display the waveforms of 256, 512, and 1024 Hz tuning forks.

Driven Torsion Pendulum, with variable damping

A table showing different resonance values.
Catalog: 
3A60.40
Location: 
Ba3
Driven mass on spring & power supply. A motor provides the forcing function that drives a torsion wheel. The labels are in German with Ein and Aus for on and off on the power supply and Fein and Grob for fine and coarse below the tuning knobs.

Hoops and arcs - Video

demonstration image
Catalog: 
3A15.40
Location: 
3_1
Video Encyclopedia :A hoop oscillates with the same period as arcs corresponding to parts of the hoop.

Two Speaker Interference - Video

Catalog: 
3B55.10C
Location: 
3_1
CCinema Classics: Interference: Sound Transmission. A microphone moves in front of two speakers revealing an interference pattern with an oscilloscope. Using estimates of the pattern geometry, the interference formula and the wave equation, students can calculate the approximate frequency of the sound.

Pump pendulum - Video

demonstration image
Catalog: 
3A95.70B
Location: 
3_1
Video Encyclopedia :Periodically pull on the string of a pendulum.

Acoustic coupling - Video

demonstration image
Catalog: 
3B25.35
Location: 
3_1
Video Encyclopedia :Sound a 2-inch loudspeaker alone and with an exponential horn.

Pages