The Momenta apparatus demonstrates the equilibrium of forces in rotational movements. The Momenta apparatus is composed of an aluminium disk rotating around a central pivot.
Different weights can be attached to the disk in different positions.
Since the arm of every weight can be measured directly on the ruler, it is possible to check that the sum of the clockwise moments is equal to the sum of the counterclockwise moments.
- 10 x 10g Weights
- 10 x 25g Weights
- 4 x Strings