Pool (cue sports) (AAPA), Asian Pocket Billiard Union (APBU, including the Middle East), Billiard Congress of America (BCA, Canada and the US), Confederación Panamericana de Billar (CPB, Latin America and Caribbean), European Pocket Billiard Federation (EPBF, including Russia and the Near East), and Oceania Pocket Billiard Association (OPBA, Australia, New Zealand, Pacific islands). The WPA represents pool in the World Confederation of Billiards Sports, which in turn represents all forms of cue sports (including carom billiards and snooker) in the International Olympic Committee. Pool (cue sports) Pool is a classification of cue sports played on a table with six pockets along the ,
Mass versus weight For instance, billiard balls on a billiard table would scatter and recoil with the same speeds and energies after a break shot on the Moon as on Earth; they would, however, drop into the pockets much more slowly. In the physical sciences, the terms "mass" and "weight" are rigidly defined as separate measures, as they are different physical properties. In everyday use, as all everyday objects have both mass and weight and one is almost exactly proportional to the other, "weight" often serves to describe both properties, its meaning being dependent upon context. For example, in retail commerce, the "net