Inertia (disambiguation)
Inertia is the resistance of a physical object to change in its velocity. Inertia may also refer to: == Science and engineering == Climate inertia, a slowness of the Earth system to changes in significant factors such as greenhouse gas levels Ecological inertia, the ability of a living system to resist external fluctuations Thermal inertia, the resistance of an object or body to temperature change in response to heat input Sleep inertia, a physiological state Sylvester's law of inertia, a theorem in matrix algebra Inertial response, a property of electrical power grids === Mechanical engineering === Moment of inertia, the resistance to angular acceleration Inertial mass, the amount of matter defined by its resistance to acceleration Second moment of area, a geometrical property of a body that determines its resistance to bending == Social science == Cognitive inertia, resistance to change in an individual's beliefs Psychological inertia, a tendency to favor omission over commission due to a lack of incentive to act Psychical inertia, a term introduced by Carl Jung Social inertia, description of a person's resistance to change in psychology and sociology Corporate inertia or unwillingness to change, a diseconomy of scale in microeconomics Industrial inertia, a situation where an industry stays at a location even after the conditions that drew it there no longer exist.