Tenne-Sens, Andrej Ottawa, Ontario, Canada.
- Generalized momentum
- Momentum in unified theories
- Links to Primary Literature
- Additional Readings
A foundational quantity in physics that is always conserved in isolated systems, defined in classical mechanics as the product of mass and velocity. An equivalent definition that is better suited to modern physics is that momentum is the rate of change of energy with respect to velocity: this allows extending the conservation laws to include entities of zero mass. Whenever energy is transported from one system to another, it is always associated with some form of momentum. See also: Classical mechanics
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