• Fundamentals of the equilibrium of moments: applied forces, generated moments and equilibrium.
  • Action of forces dependent on the lever arm.


  • Investigation of the equilibrium of moments on a two-arm lever.
  • Ball bearing-mounted beam with integrated scale as two-arm lever.
  • 3 sets of weights.
  • Sturdy metal frame.

This apparatus is built to study the moment of equilibrium in a two arm lever. In this apparatus, there is a vertical support onto which a beam is centrally mounted in position such that the beam acts a two arm lever. The lever is scaled and different weights are provided for balancing the lever at the end. Students have to balance the moment on both ends of the lever. They do this by applying different amounts of load on the lever at different distances from the central pivoted point.