If you struck the 8 ball first as a legal shot, and the cue ball or eight ball pockets the opponents ball, this is not loss of game under league play and typical local rules, regardless of whether the 8 ball goes in or not.
However, under some local rules, if you failed to call this as a part of your shot, it is may not be allowed, resulting in either spotting the 8 ball or loss of game.
if you shoot a ball in to another opponents basket you give them a point and if you hit the eight ball first you lose the game if its at the end of the game you win
As soon as you hit your opponents ball it is a foul. Under most rules, this results in ball in hand. However, under other rules, knocking the 8 ball in when it is not the object ball is loss of game.
Yes. If your object ball is the black 8 ball and it is not the ball that is hit first, it is a foul.
No. The first ball contacted by the cue ball must be the 8 ball to be a legal shot. However, if you use the opponent's ball as a carom shot after hitting the 8 ball, yes, this is a legal shot.
you loose your turn and your opponent gets to use the q ball to his adventage
you have to break it and make the 8 ball go in a pocket (at the same time)
If the cue ball goes in it is a foul - the pocketed ball may or may not be removed and spotted depending upon the ball and rules of play. In the game of 8 ball, if the other ball is the 8 ball it is loss of game.
you get a 9
If you're referring to a foul, it's ball in hand for the incoming player, provided it is a cue ball foul (i.e. scratch, ball off table, hitting opponents ball before your own, etc.). I believe some fouls result in loss of turn, but not ball in hand (i.e. - an object ball leaves the table).
500
This depends on the specific rules of the game you play. Under BCA and APA Rules the other player gets ball-in-hand.
Under normal rules, you must contact the 8 ball in a legal shot as the first ball hit and any bal must contact a rail or the 8 ball must go in a pocket.
This is a billiard term that has been co-opted as a general term. In the billiard game of 8 ball, there are 15 balls on the table. The object is to get all of your balls in a pocket, either 1-7 often refered to stripes or 9-15 refered to as solids and then sink the 8 ball. If you accidentally make the 8 ball before you make all of the others, you lose. So, being behind the 8 ball, which is black, is an unenviable position to be in.