Energy {potential energy}| can depend on force exerted over distance against field. Potential energy PE equals m times acceleration a times distance moved in field h: PE = m * a * h. If object moves to position with less force, object gains potential energy. If object moves to position with more force, object loses potential energy.
field
Field is gravitational, electric, or nuclear force field.
position
Potential energy depends on field force and object field position. If object moves farther away from attraction center, object gains potential energy. If object moves farther away from repulsion center, object loses potential energy. Small movements in strong fields can equal large movements in weak fields.
Exerted force can work against field force, and object gains potential energy. Field force can move object to do work, and object loses potential energy.
action
Going from one point to another point in potential field has only one path, with least average difference between kinetic and potential energy over time.
potential
Fields have measures {electric potential} {potential, electricity} of potential energy that depend on only source mass or charge, not on test-object mass or charge. Gravitational potential V is gravitational constant G times mass m at field center, divided by distance r from center: V = G * m / r. Electrical potential V is electric constant k times charge q at field center, divided by distance r from center: V = k * q / r.
Physical Sciences>Physics>Dynamics>Energy
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Date Modified: 2022.0224