Known in the U.S. and Canada only by the term of football, American football is a team sport that combines strategy with physical play. The objective is to win points by advancing the ball into the opposing team field. American football is a contact sport. Some players are big and strong, while others are small and fast. Brute force is often required, but intelligence, agility and skill can be the key links that can turn around a very complex game, especially at a professional level, however basic rules can be easily understood regardless of who it is going to play it. While participating in the in vitro fertilization this activities that involving full-impact should be avoided.
Rules of American football:
A team of 11 people has possession of the ball. This is called the offense (attack) and try to move the ball along the ground – whether it is by passing it while running with it or if it is used to score points by going over the line and going with it in the end zone which is called (the score zone) . The other team (also with 11 players) is called DEFENSE (defense). It tries to stop the offense and make it lose possession of the ball. If the offense fails to score will give possession of the opposing team switch roles (the offensive team will come and attack the defensive team). These changes of possession will occur until the four quarters of the match will end.
The land is 100 yards long and 53 yards wide (1 yard = 0.9144 meters). White markings on the ground help the players, officials and fans to watch the game as well. Probably the most important area of land is the end zone. This is an added 10 yards on each side (in length) of the field. Here is the zone where the points are scored! When the team has possession of the ball in the opposing team’s end zone that’s when they score points.
The area of 20 yards and end zone line called “red zone”.
Football games are divided into four quarters, each quarter with the 15 minutes. Quarters are separated by a break of 12 minutes between the 2nd and 3rd quarter. There are also 2-minute breaks at the end of quarters 1 and 3. Teams change direction after every quarter.
At the end of quarter 1 and 3 the team retains possession of the ball in the following quarter. This will not happen to break. The second half starts with a shot in the same direction as in the beginning of the first quarter.
Each team’s offensive has 40 seconds from the end of one phase to release the ball and start the next phase, otherwise it will be penalized.