PHYSICS 3A Study Guide - Final Guide: Elastic Energy, Gravitational Energy, Inelastic Collision
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PHYSICS 3A Full Course Notes
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Work done by a conservative force is recoverable. Nonconservative force: any work they do depends on the path: ex) friction, tension, push/pull. Force of gravity between the earth and the mass: elastic potential energy: for spring. Law of conservation of energy: the total energy is neither increased nor decreased in any process. Energy can be transformed from one form to another, and transferred from one object to another, but the total amount remains constant. Power: the rate at which work is done or at which energy is transformed: average p= w/t, p = dw/dt = f dot dl/dt = f dot v. Conservation of momentum: the total momentum of an isolated system of objects remains constant. Impulse: the integral of the net force over the time interval during which it acts: impulsive forces: has a very large magnitude over a very short time interval and is essentially zero outside this time interval.
