Yes. The uprights mark the width of the scoring area, which extends infinitely upward. In modern NFL football, the uprights have been increased in height, and a rule change for extra-point conversions has reduced the number of these kicks that have to be adjudicated because they pass so high above the goalposts.
Goal posts, commonly referred to as "uprights."
"To split the uprights" refers to successfully kicking a field goal in American football by sending the ball between the two goalposts, which are referred to as the uprights. It is a common way to score points in the game.
The football, after being kicked by the place kicker, must travel over the crossbar and between the two uprights of the goal post. It can hit one of these bars, but it must then bounce in such a way that it still goes over the crossbar and between the uprights. There is no limit on how high the football can go. The "uprights", though they have a finite physical length, are considered, for the purposes of the game, to extend upward infinitely.
The two uprights are treated as if they extend upward to infinity. So the height of the ball as it passes over/through the uprights does not matter.
A football field goal can be made whenever a team is close to their goal line and on 4th down. If they feel they are unable to complete a pass or run to make a 1st down they can attempt a field goal and take 3 points rather than 6 with a touchdown.
No. In NFL football, once a ball hits the uprights (goal post), whether from a pass or a missed field goal or a punt, it is out of play.
There are two uprights.
You may not practice on the real uprights but you can practice with a net on the sideline
At the front of the endzone
The goal post dimensions in Canadian football are the same as in American football. The goal posts are on the goal line. The hash marks are not in line with the uprights.
A goal is scored once the football has passed over the goal-line, and between the two uprights and crossbar. A goalkeeper is there to try to prevent the ball scoring a goal.
A field goal (kicking the ball through the uprights at the end of the field) is worth 3 points in American football. There is no "point after" attempt for a field goal. In contrast, a touchdown (carrying the ball past the goal line) is worth 6 points and allows an attempt for an additional point after touchdown, which closely resembles a field goal.