Balearic PAU Physics Practice Questions - Balearic Islands PAU Physics Examination - UIB (Física 2o Bachillerato UIB 2026) Exam

Because gravity is a repulsive force at large distances. Because work must be done against the attractive gravitational force to move a mass to infinity, where U = 0. Because gravitational potential energy is a vector pointing toward the center of mass. Because mass values are defined as negative in bound gravitational systems.