It is the line on the ground between the goal posts. If the ball crosses it, a goal has been scored.
The goal rests on the goal line.
18yrds from the goal
A technical goal in soccer is when the whole of the ball crossed the goal line and ends up in the net. Youtube has several videos showing the technique of a technical goal.
Yes. If the ball completely crosses the goal line, it's a goal.
No. All parts of the ball must be past all parts of the line.
The penalty spot is 12 yards from the goal line.
When the whole of the ball crosses the goal line, and (usually) ends up in the net.
12 yards
in order for it to be a goal the ball is to completely pass the goal line
Goals For or just Goal For
You mean between the goalposts? The standard distance is 22 ft. The goal is 8 ft high, and 10 ft deep. There are 6 yards between the goal and the small box, 18 yards between the goal line and the goal box, 60 yards between the goal line and the half, and 120 yards between both goal lines (length of the field). A soccer field is also 80 yards wide.
There is no standard size of a soccer field, but an allowable range of sizes. Youth matches can have even smaller sizes.