Conservation of Energy

Wiley publishing physics a world view 5th edition by

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Unformatted text preview: Publishing Physics: a World View 5th edition by Kirkpatrick and Francis. Thomson Publishing Wikipedia The Physics of Everyday Phenomena: A conceptual Introduction to Physics 5th edition by W. Thomas Griffith. McGrill Hill Publishing 4.0 Experiment In this experiment, the kinetic and potential energy are shown in Figure 1. Also in this experiment, we will assume that we have an isolated system in which there is no frictional force acting on the object. Because of this assumption, we can say that the mechanical energy of the system is conserved. This comes directly from the law of the conservation of energy. The mechanical energy can be broken into two different types of energy: kinetic and potential energy. Therefore we can write the total energy, E, of the system as the following: (3) where K is the kinetic energy and U is the potential energy. 2 In this experiment, we will have an initial total energy and a final total energy. We can write it as: (4) (5) Equations (1) and (2) give us the kinetic and potential energies. Thus we can...
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This document was uploaded on 03/20/2014 for the course PHYS 215 at Lafayette.

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