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Description: This demonstration illustrates driven resonance of a mass on a spring with the option of damping.
- Air track with pump
- Mechanical motor
- Sails (to add dampening)
- Fixed end point (small glider on far left in the top image)
- Attach pump to end of air track.
- Stand motor next to opposite end of track.
- Connect a spring to the motor on one end and the glider on the other.
- Attach the second spring to the end of the glider facing away from the motor and to the fixed point (far left object in top image).
- To add mass, place the ring shaped masses on the glider’s prong (see bottom image).
- To add dampening, screw in the square sail onto the top of the glider (see bottom image).
- To find the resonance frequency, begin at a low speed on the motor.
- Increase until the distance the glider travels from it’s rest position is greatest. That is your resonance frequency.
Note: Make sure the point where the spring is attached to the motor is level with the point the spring attaches to the glider.