Energy (from Ancient Greek ἐνέργεια (enérgeia) 'activity') is the quantitative property that is transferred to a body or to a physical system, recognizable in the performance of work and in the form of heat …

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Oct 26, 2025 · Energy, in physics, the capacity for doing work. It may exist in potential, kinetic, thermal, electrical, chemical, nuclear, or various other forms. There are, moreover, heat and work—i.e., …

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Scientists define energy as the ability to do work. Modern civilization is possible because people have learned how to change energy from one form to another and then use it to do work.

Jun 10, 2025 · Energy is the ability to do work, but it comes in various forms. Here are 10 types of energy and everyday examples of them.

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Nov 27, 2017 · Get the definition of energy in science, especially physics and chemistry, along with examples of different forms of energy.

At its core, energy is the ability to produce change or perform work. In a more technical sense, energy can be defined as the quantitative property that must be transferred to an object to perform work or …

Energy refers to the ability or capacity to do work or cause changes in a physical system. Most people think of energy as the “fuel” or “power” that allows things to happen or work to be done.