School Lab Forced Oscillation and Resonance Demo

The speed control is used to adjust the frequency of applied force for resonance, so a greater degree of variance is possible. Includes manual. 

show vibration of an object when repeated impulses are applied, this demonstrator consists of two weights of different natural frequencies, two cams driven by a 6V motor with speed control, and four springs. 

Size 30 x15 x 45cm Power source not included