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Torque is a measure of how much a force acting on an object causes that object to rotate. The object rotates about an axis, which we will call the pivot point, and will label 'O'. We will call the force 'F'. The distance from the pivot point to the point where the force acts is called the moment arm, and is denoted by 'r'.
Too Much Is Too Much. Car manufacturers specify a Â­proper tightening level, a torque Â­value expressed in foot-pounds, for every fastener on your car. Torque is a rotational force applied around a point or, in this case, a nut. Put a 1-foot-long wrench on a nut and apply 10 pounds of force to the opposite end.You're now twisting that nut with 10 ft-lb (distance times force, or 1 foot times 10 pounds).orque is a rotational force applied around a point or, in this case, a nut. Put a 1-foot-long wrench on a nut and apply 10 pounds of force to the opposite end.