does air have weight?

Answer 1

By an simple experiment we can prove that air has weight:-

Blow 2 ballons with air and tie them with string on a small thin stick of wood...


now with a pin burst 1 ballon

you will see that the the stick has become tillted on the side with filled air ballon


this proves that air has weight.

Answer 2

Weight and mass are different. Oxygen has mass as an element. Nitrogen is also a major part of air, and it also has mass. The weight mentioned earlier is actually pressure, not weight. Weight is a measure of force in Newtons, not pascals. However, air does have weight because weight is a function of gravity, which is one of the four fundamental forces. If the force of gravity (and thus weight) did not act upon air, then all air would evaporate into space. Its weight may seem small, but it still accelerates towards Earth at 9.8 m/s^2.

Answer 3

All matter has weight, gases just don't have much of it.

The fact that air has weight is why helium balloons can float. Helium is lighter than air just as oil is lighter than water. So the helium floats on top of the air; the denser air pushes the less dense helium up.

The real key, of course, is density (the amount of matter packed into a given volume). Gases aren't dense at all; a given volume of air weighs much less than the same volume of plastic. Temperature can affect density -- hot air is less dense than cold air, which is why hot air balloons work.

Answer 4

yes, to prove it the airplane wing pushes the air above the wing (because of its shape and angle to the direction of motion) causing a vacuum above the wing and the air under the wing pushes upward resulting in a force that can overcome the weight of the entire aircraft. And the hot air baloon can rise above the groung because the hot air in the baloon is lighter than the cooler air outside the baloon and the baloon floats on the cooler, heavier air just like a piece of ice floats on water.

Answer 5

Sure, its density varies depending on pressure. But at atomospheric conditions somewhere around 13.5 cubic feet of it weight 1 lb.

A good experiment I've seen to prove this is make a simple balance beam with two identical balloons. One full of air and one deflated. The inflated balloon weighs more than the deflated balloon.

Answer 6

Yes, the weight of air depends on temperature of environment.

Answer 7

Scientists have discovered that the air in the atmosphere around us is heavier (more dense) than they had previously thought. Knowing this will enable scientists to measure the mass of objects more accurately than ever before.

Answer 8

Yes it does, but we can't feel it because we are exerting the same amount of pressure against the air as the air is to us.

Answer 9

Yes, and it remains one of the reasons that gravity is still a theory.

How can we prove that we are here by gravity when the weight of the atmosphere could be the reason we are being held down?

Think about it.

Answer 10

Yes. It's just the weight of the gas atoms that make it up.