Share Email Facebook Twitter LinkedIn Physical Properties in Assemblies Understand how differences in materials, analysis tolerances, and other values affect the model. Topics in this section About Center of Gravity (COG) Shows the location of the center of gravity for a selected component. About Mass Properties Assign physical properties to components to calculate assembly weight and volume, to locate a center of gravity, and to export data to another application for further analysis. About Occurrence Properties in Components You can specify whether a component is visible, enabled, adaptive, grounded, or displays degrees of freedom. Parent topic: Assembly Modeling Overview