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No, but in 1912 before the NFL was established the ball looked like a soccer ball, but they changed it to egg-shaped.

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โˆ™ 2007-02-01 14:44:49
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Q: Did the NFL ever change the size dimension or weight of the ball used for kick-offs?
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Related questions

Is the football used for kickoffs different from the game ball?

NO.


Does the weight of a ball change with inflation?

Yes, it does. But the weight added by gas (if that is what is being used to inflate it) does not change the weight of an average ball very darn much. You'd have to have a really sensitive scale to actually find the weight of the air in the ball. In fact, someone working in the lab wouldn't weigh the thing. They'd use the size of the ball to find its volume and then look at the pressure and temperature of the gas in the ball and make a calculation to determine the weight of gas. It'd be a loooot faster and probably as accurate - if not more so.


Can you Compare the changes in the weight of a ball with the changes in the ball's mass as the height of the ball above Earth's surface increases?

Mass and Weight The gravitational force Earth exerts on an object is the weight of the object. Because weight is a force, it is measured in newtons. Weight is not the same as mass. Mass is the amount of matter an object contains, and is measured in kilograms. Even if the mass of an object doesn't change, its weight will change if its distance from Earth changes


What is the math name for a three dimension tennis ball?

sphere


How does a golf ball's mass on the moon compare to its mass on earth?

They will be exactly the same. The mass of an object doesn't change, no matter where it is. It's weight will change though. So the weight of a golf ball on the Moon will be about a sixth of what it is on Earth.


Would a ball with less weight bounce higher than a ball with more weight?

No, because the fact that the ball with less weight bounces about couple centimeters than an other ball that has more weight.


When will a ball filling with water sink?

The ball will sink when the weight of the water inside the ball plus the weight of the ball is greater than the weight of the amount of water that would fit inside the ball.


On the kickoff if the ball hits a player on the receiveing team what happens?

Kickoffs can always be recovered by either team, as soon as the ball travels 10 yards. So regardless of whether the ball hits a player or not, it's available to the first person who can take possession.


Compare the changes in the weight of a ball with the changes in the balls mass as the height of the ball above earths surface increases?

Mass and Weight The gravitational force Earth exerts on an object is the weight of the object. Because weight is a force, it is measured in newtons. Weight is not the same as mass. Mass is the amount of matter an object contains, and is measured in kilograms. Even if the mass of an object doesn't change, its weight will change if its distance from Earth changes.


What is a step ball change in dance?

A step ball change is pretty much how it sounds you step with 1 foot with the other behind and transfer your weight on to your back foot then back to the foot in front.


Weight of cricket ball?

Weight of cricket ball is 155.9 gram.


What is the weight of a golf ball?

Maximum weight of a golf ball: 1.62 ounces


What is the weight of volley ball?

volley ball weight is 240-280 grams


In the NFL do kickers on kickoffs try to kick the ball into the endzone for a touchback?

Yes, there is a distinct advantage to the kicking team if the kickoff is not returned and placed at the 20 yard line.


Why bowling ball curve?

The core of the bowling ball has a weight block so that when you release the ball, the weight block will make the ball spin.


What is the dimension of a ping-pong ball?

A ping pong ball is a 40mm diameter sphere, with a volume of 3.35 cm^3


What is the highest weight of a bowling ball?

The maximum weight a bowling ball can be is sixteen pounds.


What is the weight of one golf ball?

A golf ball's weight can get up to 45.93 grams


What is the official weight of a cricket ball?

Official Weight of Cricket BallThe official weight of a cricket ball is 5.5 to 5.7 ounces.


What is a touch - back?

when a team recovers a ball from their opponent in their own endzone, the team has the option to take the ball out and attempt to advance it or stay in the endzone resulting in an automatic advancement to the 20yd line. This happens commonly on kickoffs, interceptions and fumble recoveries.


What is a touch back?

when a team recovers a ball from their opponent in their own endzone, the team has the option to take the ball out and attempt to advance it or stay in the endzone resulting in an automatic advancement to the 20yd line. This happens commonly on kickoffs, interceptions and fumble recoveries.


In jazz what is a kick ball change?

A kick ball change is quite a simple move and a little difficult to explain. You first obviously kick your foot then right when your foot comes down you balance your weight on the balls of your feet (the part of your feet you balance on when you stand on your toes) hence the name kick ball change.


How is inflating a ball a physical change?

Inflating a ball is a physical change because you only change the appearance of the ball.


Is the buoyant force on a ball is less than the weight of the ball will the ball float?

no because the bouyancy has to be more than the weight of the ball to float that means that it will sink because the bouyancy does not have enough force to overcome the weight.


When the diameter of ball mill is above 2500mm some steel ball would be added so what the ball dimension would be?

The steel ball with model of Ø120㎜、Ø100㎜、Ø80㎜ should be added。