In order to understand the correct situation in which to use the word affect or effect, the first thing one must do is have a clear understanding of what each word means. 1  Affect is usually used as a verb. It is an action word that means to produce a change in or influence something. 2  Effect is usually used as a noun.
Shear Factor. The distance a point moves due to shear divided by the perpendicular distance of a point from the invariant line.
More about GF (Guild Factor) GF measures the ratio between the surferâs body weight and the volume (in cubic liters) of a surfboard. The GF number is the percentage of volume (floatation) to body weight.