Lecture5%20Transforming%20Energy%20and%20Metabolic%20Power-slides

Lecture5%20Transforming%20Energy%20and%20Metabolic%20Power-slides

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Today Thermal Energy and Chemical Energy Power Transforming Energy and Efficiency Energy in the Body Energy and Power Units
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Transforming Energy Energy is generally conserved. This means that energy can neither be destroyed nor created. So how can we then produce energy and generate electrical power? Energy can be changed from one form into another. We need to convert energy into a form that is useful for us, such as electrical energy. Do you know examples for energy conversions? What forms of energy do you know?
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Forms of Energy Mechanical energy: Kinetic energy Potential energy Thermal energy Chemical energy Electrical energy Nuclear energy What energy transformations take place in a coal- fired power plant?
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Questions What is the primary energy source (before transformation) 1) in a car A. Kinetic energy B. Potential energy C. Thermal energy D. Chemical energy E. Electrical energy
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Questions What is the primary energy source (before transformation) 2) in a wind turbine A. Kinetic energy B. Potential energy C. Thermal energy D. Chemical energy E. Electrical energy
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This note was uploaded on 05/19/2011 for the course PHYS PHYS 100 taught by Professor Lioudmila during the Winter '10 term at UBC.

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Lecture5%20Transforming%20Energy%20and%20Metabolic%20Power-slides

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