A conservative force is equal to the gradient of this, while its electrostatic variety is measured in volts.
Velocity-dependent forces require a generalized version of this quantity, while the Lagrangian operator subtracts this quantity from a related quantity. A conservative force is equal to the gradient of this, while its electrostatic variety is measured in volts. It is often defined as zero for a charged particle an infinite distance away from a source of Coulomb force, and for a uniform gravitational force, the difference in this quantity between two positions of an object is proportional to the difference in their heights. For 10 points, name this physical concept which refers to the ability of an object to perform work, often symbolized U and contrasted with kinetic energy.
Velocity-dependent forces require a generalized version of this quantity, while the Lagrangian operator subtracts this quantity from a related quantity.
{potential} energy [prompt on “{potential}” before “{Lagrangian}” is read]