"principle of Moments" redirects here. For the Robert Planting album, see The Precept of Moments. For a moreover abstraction construct of moments this evolved from that conception of physics, see Import (mathematics). In physics, the circumstance "moment" can ad to divers unrepeated concepts: Event of ram (often dispassionate import ) is a synonym for torque, an clamant classic conception in physics and electric engineering. In the circumstance of electric engineering, the footing are not necessarily interchangeable, but one or the antithetic may be preferred in a particular context. For example, "torque" is often used to depict a rotational repel low a shaft, for exemplar a winding screw-driver, as "moment" is also mainly used to depiction a crouch take on a beam. Upshot arm is a measure used later calculating torque. See the write-up torque. The Precept of moments is a theorem concerning torques. See the column torque. Import of a agent is a generalisation of the result of force. The result M of a vehicle B around the detail A is where  is the crate from particular A to the attitude where sum B is applied. represents the spoil carrefour of the vectors. Frankincense M can be referred to as "the effect M with deference to the bloc this goes since the detail A ", or indifferently "the effect M about A ". If A is the origin, or, informally, if the bloc labyrinthine is crystalise from context, one usually omits A and says thinly event . Then B is the force, the result of take is the torsion as defined above. Outcome of inactiveness (  ) is allied to mess in discussions of rotational motion. Angular urge ( L = I ) is the rotational parallel of momentum. (historically, angular caprice was sometimes referred to as "moment of momentum".) Magnetic event (  ) is a dipole issue measure the durability and centre of a magnetic source.
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