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A diagram shows a positive charge labeled Q on the left and two dashed paths from point B to point A on the right. Path 1 goes directly from B to A, while path 2 follows a route from B to C to D to A. Both paths illustrate possible ways to move a second charge q in the presence of Q.

How is energy defined and measured?

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virtual work entropy efficiency energy adiabatic process matter chemical bonding nuclear fission catalysis nuclear fusion deformation and flow friction diffusion absorption adsorption dispersion

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Model of a molecule. Atom, Biology, Molecular Structure, Science, Science and Technology. Homepage 2010 arts and entertainment, history and society

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Italian-born physicist Dr. Enrico Fermi draws a diagram at a blackboard with mathematical equations. circa 1950.

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