PHYA11H3 Chapter Notes - Chapter 10-11: Energy, Dot Product, Gravitational Energy
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PHYA11H3 Full Course Notes
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Trajectory the path along witch an object moves (the path of a moving object) Motion diagrams shows an objects position at several equally spaced instants of time pg3-4. Particle model of motion is a simplification in which we treat a moving object as if all of its mass were concentrated at a single point. Gravitational potential energy: ug = mgy: energy of position (depends on the object"s position not speed) Potential energy: stored energy: due to the interactions between the objects. Mechanical energy: emech = k + u: sum of the kinetic and potential energy of a system. Restoring force a force that restores a system to an equilibrium position. Elastic systems systems that exhibit restoring forces. Equilibrium length (lo) the length of a spring when it is neither pushing or pulling. Spring force (fsp) - exerts a variable force: the force is zero if s = 0 (no displacement), and it steadily increases as the stretching increases.
