The term 'LOBS' Trajectories' refers to the curved paths of a golf ball when hit with a lob shot. The lob shot is a type of golf shot that is used to get the ball over an obstacle, such as a bunker or water hazard. The lob shot is usually hit with a high lofted club, such as a sand wedge, and the ball will travel in an arc-like trajectory before landing on the green. The four letter word ARCS is a perfect description of the curved paths of a lob shot.