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To understand energy and conservation of energy, we must first define some terms: work, kinetic energy (KE), and potential energy (PE). We’ll get to PE in the next Chapter.
Part I – Energy and its Uses. 2. Units and scales of energy use (PDF - 1.1MB) 3. Mechanical energy and transport (PDF) 4. Heat energy: Conversion between heat and mechanical energy (PDF ‑ 2.9MB) 5. Electromagnetic energy: Storage, conversion, transmission and radiation (PDF - 7.7MB)
Online Textbook. These notes were updated in 2022 to reflect corrections that readers have noticed. Chapter 1: Introduction to Classical Mechanics (PDF) Chapter 2: Units, Dimensional Analysis, Problem Solving, and Estimation (PDF - 4.5 MB) Chapter 3: Vectors (PDF - 4.4 MB)
This definitive textbook traces the flow of energy from sources such as solar power, nuclear power, wind power, water power, and fossil fuels through its transformation in devices such as heat engines and electrical generators, to its uses including transportation, heating, cooling, and other applications.
Energy resources are key limiting factors to economic growth. The world use of energy resources, especially oil, continues to grow, with ominous consequences economically, socially, politically, and environmentally. We will briefly examine the world’s energy use patterns at the end of this chapter.
Physics of Energy I - 4 Understanding the physics of energy means learning about two sorts of things. 2 - How does each particular form of energy work. 1 - What general principles unify the physics of energy - applying to energy in all its different forms. WeÕll start with the general principles. These are known as the laws of
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