when do you do a drop ball in soccer
Dropped-ball The ball is dropped by the referee at the point where the ball was when play was stopped, unless this is within a goal area in which case it is dropped on the goal area line parallel to the goal line. The ball becomes in play as soon as it touches the ground. Players must not touch the ball until it has touched the ground. If the ball leaves the field of play before it has been touched by a player, the drop-ball is retaken.[1]
Drop (liquid) A simple way to form a drop is to allow liquid to flow slowly from the lower end of a vertical tube of small diameter. The surface tension of the liquid causes the liquid to hang from the tube, forming a pendant. When the drop exceeds a certain size it is no longer stable and detaches itself. The falling liquid is also a drop held together by surface tension.