When a penalty kick scores, it counts as a goal (just as any other goal). Penalty kicks that do not score (similar to regular goals) count for nothing.
The exception are kicks from the penalty mark (the "Penalty Shootout": the tie-breaker sometimes used when a game must have a winner, such as in most tournaments). When these kicks are successful, they are not counted as goals, but tracked separately to determine the winner.
There are penalty kicks in soccer. A penalty kick is awarded when a defender commits a direct free kick offense while within his own penalty area.
1
A penalty kick for the attackers, a direct free kick for the defenders, or an indirect free kick for either side.
For deliberate handling, a direct free kick is awarded to the opposing team.
If it was deliberately handled, then a direct free kick is awarded to the opposing team at the location of the infraction. If it happened in the penalty area, then a penalty kick would be awarded.
A penalty kick is awarded for an infraction within the penalty area. When the kick is laid up the goalkeeper is not allowed to leave his/her line before the ball has been kicked.
A penalty kick is awarded if the deliberate handling was by a defender in their own penalty area. A direct free kick is awarded if it was by an attacker.
If a penalty kick is taken at goal and succeeds, three (3) points are awarded. Otherwise, it is merely a manner of restarting play and does not carry any point bonus.
If the offense was one of the Indirect Free Kick fouls, then it would be an Indirect Free Kick at the spot. (Or brought out to the top of the Goal Area if inside that.) If the offense was one of the Direct Free Kick fouls, then an Penalty Kick would be awarded.
A PK in Soccer is a penalty kick.
Penalty
Yes, a ball must be kicked forward at a penalty kick in soccer.