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In physics, a force field is a vector field corresponding with a non-contact force acting on a particle at various positions in space. Specifically, a force field is a vector field F {\displaystyle \mathbf {F} } , where F ( r ) {\displaystyle \mathbf {F} (\mathbf {r} )} is the force that a particle would feel if it were at the position r ...
In physics, a unified field theory (UFT) is a type of field theory that allows all fundamental forces and elementary particles to be written in terms of a single type of field. According to modern discoveries in physics, forces are not transmitted directly between interacting objects but instead are described and interpreted by intermediary ...
A field has a consistent tensorial character wherever it is defined: i.e. a field cannot be a scalar field somewhere and a vector field somewhere else. For example, the Newtonian gravitational field is a vector field: specifying its value at a point in spacetime requires three numbers, the components of the gravitational field vector at that point.
The Lorentz force law gives the force upon a body with charge due to electric and magnetic fields: = (+), where is the electromagnetic force, is the electric field at the body's location, is the magnetic field, and is the velocity of the particle.
Force field (chemistry), a set of parameter and equations for use in molecular mechanics simulations Force field (physics) , a vector field indicating the forces exerted by one object on another Force field (technology) , a barrier made up of energy, plasma or particles to protect a person, area or object from attacks or intrusions or as a ...
A force has both magnitude and direction, making it a vector quantity. The SI unit used to measure force is the newton. force carrier Force field (physics) frame of reference Fraunhofer lines free body diagram frequency frequency modulation free fall Any motion of a body where its own weight is the only force acting upon it. freezing point
In physics and engineering, a free body diagram (FBD; also called a force diagram) [1] is a graphical illustration used to visualize the applied forces, moments, and resulting reactions on a free body in a given condition. It depicts a body or connected bodies with all the applied forces and moments, and reactions, which act on the body(ies).
Quantum field theories describe nature in terms of fields.Each field has a complementary description as the set of particles of a particular type. A force between two particles can be described either as the action of a force field generated by one particle on the other, or in terms of the exchange of virtual force-carrier particles between them.