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Energy is a quantitative property that can be transferred, converted or conserved in different forms. Learn about the types of energy, the law of conservation of energy, the history of the concept and the units of measurement.
Learn about the concept of energy, its forms, conservation, and conversion. Explore the sources and uses of energy in physics, chemistry, and biology with Britannica articles and videos.
Learn how energy is defined, classified, and converted by scientists and engineers. Find out the sources, types, and uses of energy in modern civilization and beyond.
Learn what energy is, how it is conserved and converted, and what are the different types and forms of energy. Find out the word origin, units, and examples of energy in everyday life and science.
Forms of Energy. Energy forms are either potential or kinetic.Potential energy comes in forms that are stored and includes chemical, gravitational, mechanical, and nuclear. Kinetic energy is energy in movement and includes electrical energy, heat, light, and sound. Laws of Energy
Learn the various meanings and uses of the word energy, from dynamic quality to usable power. See synonyms, examples, word history, and related phrases of energy.
Learn what energy is, how it can change forms, and how it relates to mass and work. Explore the different types of energy, such as heat, kinetic, potential, and nuclear, with examples and diagrams.
Learn the fundamentals of energy, energy resources, energy services, and energy efficiency. Explore the key terms, concepts, and examples of energy systems and their applications.
Learn about energy in physics, economics and everyday use. Find out the basic forms, types, conservation and measurement of energy, and the difference between matter and energy.
Learn about the different types of energy sources in the U.S., including fossil, nuclear, renewable and electricity. Find out how the Energy Department is developing new technologies for clean energy, energy storage, hydrogen and fuel cells.