# What is the volume of a football?

## What is the volume of a football?

We can compare this with the volume of a football (soccer ball) – which has a radius of around 10.5cm, therefore a volume of around 4800 cubic centimeters.

### What is the volume of an inflated football?

Question: 6. A regulation NFL football is inflated to a pressure of approximately 13 psi. The volume of an NFL football is approximately 0.15 ft.

What is the density of a deflated football?

Answer: Mass of the ball is . 42 kg. The density of air is 1.2 kg/m3.

What happens if you deflate a football?

In the end, the reason for deflating a football owes more to physiology than physics. A slightly deflated ball is a bit softer, making it easier to grip the ball to throw it and reducing the bounce when it hits the hands of a receiver, making it easier to catch.

## What is the volume of earth?

“Volume” is a measurement of the amount of space an object occupies. The Earth has a volume of about 1,083,206,916,846 cubic kilometers (259,875,159,532 cubic miles). According to some astronomers, about 1.3 million Earths could fit inside the sun.

### What is the density of the football g cm3?

If the air sample weighed 0.001185 g and the helium 0.00016 g, we could describe the density of air as 0.001185 g cm–3 and that of helium as 0.00016 g cm–3….Density: Floating Footballs.

Substance Density (g/cm3 at 20oC)
Argon 0.0018
Halon 1301 0.0066
Water 1.00
Densities of many more materials are easily found.

Is an American football an ellipsoid?

A football, however, owes its two-dimensional origin to the ellipse rather than the circle, giving the pigskin its prolate spheroid shape, which has a polar axis that is greater than its equatorial diameter. This shape makes the football more difficult throw than a spherical ball.

Why does an inflated football float on water?

Archimedes figured out that the volume of the ball below the water line is just big enough to hold enough water weigh as much as the ball weighs. So the ball would sink just enough to make part below water pick up about 10 cubic centimeters of volume, since the density of water is one gram per cubic centimeter.

## Will a football filled with helium fly farther?

Helium-filled footballs will not travel further or hang in the air longer than the heavier air-filled footballs.

### What was the advantage of Deflategate?

Taking air out of the ball makes it softer, and thus easier to grip, throw, and catch. NFL teams each bring 12 balls to the game and use their own on offense, so only the Patriots would have benefitted from the deflated balls.

What is the mass of a deflated football?

A deflated football has a smaller mass because it has fewer gas molecules inside of it. Assuming that the temperature is 32 degrees Fahrenheit (0 degrees Celsius), the mass of the air in a football inflated to 12.5 psi is about 0.39 ounces (11 g). A football deflated to only 10 psi has a mass of 0.36 ounces (10.2 g).

How big is a football inflated to 12.5 psi?

Assuming that the temperature is 32 degrees Fahrenheit (0 degrees Celsius), the mass of the air in a football inflated to 12.5 psi is about 0.39 ounces (11 g). A football deflated to only 10 psi has a mass of 0.36 ounces (10.2 g). The difference is about the weight of a paper clip, Eads said.

## How much of the mass of a football is air?

But air is, by definition, very light. The air in a fully inflated football accounts for only about 10 grams of its mass (about 2.5% of the total) and deflating it would reduce that by maybe a gram or two.

### Why are deflated footballs important in the NFL?

While no one would argue that deflated balls were the reason the Patriots won the AFC Championship game, punishment in all its forms should be relative to intent rather than effect. The reason intent is important is that the NFL can’t have a 100% success rate of catching rule breakers.