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Unformatted text preview: Energy, Work & Conservation of Energy Topics of Discussion Work Work Done by a Constant Force Types of Energy The WorkEnergy Theorem Conservation of Energy Work Done by a Variable Force NonConservative Forces & Work Power Work
The work, measured in Joules (J), is the energy transferred to or from an object by means of a force acting on the object. Energy transferred to an object is positive
work (+W). Energy transferred from an object is negative work (W). Work Done by a Constant Force
The work W done by a constant force F through a displacement s is given by W = (Fcos ) s
where is the angle between the force and displacement vector.
F s Fcos Types of Energy The energy associated with the motion of an object of mass m at a speed v is called
the kinetic energy. The energy associated with the geometry or configuration of the object of mass m is
called the potential energy. Kinetic Energy
The kinetic energy KE or energy of motion is given by KE = mv where v is the velocity of the mass m. The WorkEnergy The...
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This note was uploaded on 02/10/2010 for the course PHY 2053 taught by Professor Hardy during the Spring '10 term at University of Southern Maine.
 Spring '10
 Hardy
 Physics, Conservation Of Energy, Energy, Force, Power, Work

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