1. What is meant by mo1. What is meant by moment of inertia? 2. Name the forces acting on the descending mass. 3. Name the torques acting on the flywheel when the mass is descending. Do these torques remain constant during the fall of the mass? 4. What happens to the potential energy lost by the falling mass? 5. Describe a practical application of a flywheel.ment of inertia? 2. Name the forces acting on the descending mass. 3. Name the torques acting on the flywheel when the mass is descending. Do these torques remain constant during the fall of the mass? 4. What happens to the potential energy lost by the falling mass? 5. Describe a practical application of a flywheel