Moment of Inertia for Solids depends on their shapes and distributions of mass around their axis of rotation. And is denoted by Is. Moment of Inertia for Solids is usually measured using the Meter⁴ for Second Moment of Area. Note that the value of Moment of Inertia for Solids is always negative. Typically, the value of Moment of Inertia for Solids is greater than 0.