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conservation of momentum comparison table
Subject is a kind of has conserved quantity has definition
conservation lawlaw A quantity that remains unchanged in the course of the evolution of a dynamical system. There are seven known quantities that are conserved: energy (including mass), momentum, angular momentum (including spin), charge, electron-family number, muon-family number, and baryon-family number.
conservation of momentumconservation lawmomentumThe principle that the linear momentum of a system (in Newtonian mechanics, mass times velocity) remains the same as long as no external force acts.

Next conservation lawconservation of angular momentum    Upconservation law    Previous conservation lawconservation of matter