Rotary system

Rotary System

This simple but effective system makes a complicated topic become an enjoyable lesson for all ages at secondary level. It allows students to easily investigate the forces of circular motion so that they get hands-on experience of the effects.
A spring system is enclosed in an acrylic tube so that the student can whirl a rubber ball around in a horizontal circle to measure the centripetal force.
Radius and mass are easily varied and rotational speed is simply measured by timing the revolutions. The forces acting can be measured in force increments or in Newtons if the spring is calibrated beforehand. Full instructions included.

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