use a pressure gauge simple i think u get t in any sports store
The pressure inside a football is caused by the air particles inside the ball being compressed by the addition of increasing amounts of air. The standard PSI of a professional football is 13 psi (Pounds per square inch).
yes
yes
The air inside the semi-deflated football is able to expand due to the lessening of air pressure in higher altitudes.
Approximately, yes. A polyhedron is made up of flat faces whereas the faces of a football are curved out because of the air pressure.
Air pressure is the weight of the air above you. When you ascend to some altitude above the Earth's surface, part of the air is beneath you, so the weight of the air above you, and therefor the pressure where you are, is reduced. Exactly the same reason that the pressure on the football player in the middle of the pile-up is less than the pressure on the guy with the ball, at the bottom of the pile.
because ur hand wont beable to grip the ball
76-90 kpa or 11-13 psi
Air Pressure
7-9 lbs
For an Association football, 8-12 psi. For an American football, 12.5-13.5 psi. For an Australian football, 9-11 psi.
It is different in that the seas don't have air pressure. No air; no air pressure.