Wd-2 Forced Harmonic Motion (1)
Published: Wednesday 15 March 2006 - Updated: Wednesday 30 March 2011
To demonstrate the large amplitude oscillations of a body at resonance.
PASCO TM Motor Driven Oscillator
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Forced Harmonic Motion PASCO
The apparatus consists of a spring connected via a light string to a motor driven oscillator. At resonance the amplitude increases uncontrollably. It is also possible to observe the phase relationship between the driving force and the spring as the system passes through resonance.