Quick Answer: The Disk of the Momenta is a moment apparatus: a circular disk on a central pivot with positions for attaching weights, used to verify the principle of moments. Loads placed at different distances from the centre show the turning effect each one produces.
Last updated: October 2026
Key Features
Circular disk that turns freely on a central pivot
Marked weight-attachment positions at different distances from the centre
Hooks and weights used to apply clockwise and anticlockwise moments
Also used for rotational balance and centre of gravity work
Technical Specifications
Specification
Value
Design
Circular disk with central pivot and weight attachment positions
Principle demonstrated
Principle of moments and turning effect of force
Application
Moment of force, torque, rotational equilibrium and balance experiments
About This Product
A known weight is fixed on one side of the disk and a second weight on the other side at a different distance, and the values or positions are changed until the disk stays balanced. Students measure each distance from the pivot, work out moment = force × perpendicular distance, and compare clockwise and anticlockwise moments. It shows plainly how a small force far from the pivot can balance a large force close to it.
