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6.1: Introduction
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Work is the energy associated with the action of a force.
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6.2: Work Done by a Constant Force
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The work done by a constant force is proportional to the force applied times the displacement of the object.
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6.3: Work Done by a Variable Force
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Integration is used to calculate the work done by a variable force.
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6.4: Work-Energy Theorem
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The work-energy theorem states that the work done by all forces acting on a particle equals the change in the particle’s kinetic energy.
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6.5: Potential Energy and Conservation of Energy
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Conservative force—a force with the property that the work done in moving a particle between two points is independent of the path it takes.
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6.6: Power
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In physics, power is the rate of doing work—the amount of energy consumed per unit time.
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6.7: CASE STUDY: World Energy Use
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The most prominent sources of energy used in the world are non-renewable (i.e., unsustainable).
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6.8: Further Topics
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Thermal, chemical, electric, radiant, nuclear, magnetic, elastic, sound, mechanical, luminous, and mass are forms that energy can exist in.