Shooting the puck is a motion a player takes to push the puck with his hockey stick into the air or along the ice towards the opposing team's goal cage in hopes of having it go in the net. If the puck crosses the goal line of the goal cage, or into the net, a team earns a goal.
A backhand shot is a shot in ice hockey where player will use the back-portion of the stick to shoot the puck. It all depends on if a player is right-handed or left-handed and the type of stick they are using.
While the puck is in motion towards a teammate from a pass, an offensive player is winding up his swing timing the upcoming shot on goal. This is called a one-timer and requires a strong sense of timing and anticipation. One-timers are great for surprising the opposing team's players and goalie and giving them little time to react to the upcoming shot.
A slap shot in ice hockey is like a one-timer, except that it is not timed off a pass. Instead, an offensive player will wind up his swing and shoot the puck with intense force. Slap shots are very difficult to defend against.
A snap shot is like a wrist shot in that the offensive player has a small windup and a quick release of the puck. The only difference is that a snap shot doesn't have to utilize a flick of the wrists.