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Energy transformation, processing, units, and economics together describe how energy moves from one form to another, how it is managed, and its role in society. Energy transformation refers to the conversion of energy from one type to another, such as chemical energy in fuel turning into mechanical energy in engines or electrical energy in appliances. Processing involves refining raw energy sources—like crude oil into gasoline or biomass into biofuels—so they can be used efficiently. Energy is measured in standardized units such as joules, kilowatt-hours, or calories, which allow comparison across different forms. Finally, energy economics studies the production, distribution, and consumption of energy, analyzing costs, market dynamics, and the impact of energy choices on development and sustainability. Together, these aspects highlight the technical, practical, and financial dimensions of energy in modern life.
This lecture is part of PHY 206 GENERAL PHYSICS 7 in the Physics department. The course has 30 recorded lectures across 10 series, all free to watch.