The sport that involves hitting a ball over a net is called volleyball. Volleyball is played between two teams, typically consisting of six players each, on a rectangular court divided by a high net. The objective is to score points by sending the ball over the net and into the opposing team's court, while preventing the ball from touching the ground in one's own court. Points are scored when the ball lands in the designated area or when the opposing team fails to return the ball successfully. Volleyball can be played indoors or on the beach, with variations like beach volleyball, which is played on sand.