Soccer Ball Needs Master Feet
Updated: Feb 23, 2022
A soccer ball is a ball produced for use in football matches. Its standards are specified in the second article of the football rules determined by the International Football Association Board (IFAB for short). According to the rules, the spherical ball has a circumference of 68 to 70 (27 to 28 in), a weight of 410 to 420 g (14 to 16 oz), and an internal pressure of 0.6 to 1.1 atm (59 to 108 kPa, 8.6 at sea level). to 15.7 psi).
Soccer Ball Needs Master Feet
Undoubtedly, one of the most important factors affecting soccer balls is weather conditions. As the air temperature rises, the density of the ball and the air pressure decrease, which causes the ball to go further. In football, a good shot that makes the ball go 65 meters can make the same ball go 130 meters in a ventilated environment.
If there was no resistance from the air, the goalkeepers could have sent the ball directly to the opposite goal and easily scored.
Despite the interest in football, those who do research on biomechanics think that the soccer ball is rather boring compared to other balls. For example, the soccer ball does not have cavities that affect the retraction force of the air, as in the golf ball. The seams that cause the cricket ball to go asymmetrically while flying are also absent in the soccer ball. Although the valve in the soccer ball causes the ball to rotate a little while the ball is in the air, this rotation does not affect the direction of the ball much. The only thing that will keep the soccer ball rolling is the skill of the batsman.
FIFA Approval Required
Footballs played in national and international matches must be FIFA approved. According to the rules in football instructions, a soccer ball must be round, not more than 70 cm (828 inches) in circumference and not less than 68 cm (27 inches).
At the beginning of the match, his weight must be no more than 450 g (16 ounces) and at least 410 g (14 ounces). The pressure at sea level should be equal to 0.6-1.1 ((600 gr/cm2 - 1100 gr/cm2) atmosphere. Balls are 'FIFA approved' (FIFA approved), 'FIFA Insfected' (FIFA inspected) or "International Matchball" Standard" (International match ball standard). It is forbidden to place commercial advertisements on the ball in official matches.