What are some ways that air pressure helps us?

Answer 1

It fills tires.

Answer 2

It seems like most people here are taking it to mean compressed air and it'e benifits (which they are explaing very nicely).

I will take it to mean the pressure of the atmosphere on everything.

It makes airplanes fly. Airplanes get their lift due to the difference between air pressure above and below the wings.

It keeps the oceans from boiling away. Without air pressure, the waters of the oceans and rivers and lakes and so on would have boiled off into space a long time ago.

It creates climite. High presssure system, low pressure system, it does not matter which, without air pressure we would have no climite or wind.

And I am sure there are others that I can't think of right now.

Answer 3

Air pressure is used in a number of ways:
>> raises the car lifts so that your car can get fixed
>> drives the air tools the mechanic uses
>> drives the air conditioning that keeps you cool in the summer and warm in the winter
>> steers the winds to create the weather

Answer 4

It helps to keep tyres inflated.

It draws the liquid in the drinking straw.

Pressure cooker: it increases boiling point of water so that food cooks more quickly.

Allows us to breathe! When you breathe in, you are not drawing air into your body. The muscles in the ribs and the diaphragm contract and relax, causing the rib cage to move outward and upward, hence increasing volume and decreasing pressure. Since pressure inside is less than pressure outside, air flows in.

The contrary occurs when we breathe out!

Answer 5

Air is 21 % oxygen. At sea level, the amount of oxygen that is in the air is about right for us to breathe. At the top of Mt Everest, there is very low air pressure; if we were flown to the top of Mt. Everest, we would be dead in 20 minutes unless we had been acclimatized. So my answer is that air pressure holds the oxygen that keeps us alive!

Answer 6

Since your question is a littlve vague I will fill in the details.

What's the difference between air pressure and peer presuure.

about 40 psi

Answer 7

There are many devices which make use of air pressure such as:-

- syringe
- siphon
- flit pump
- drinking straw
- filter pump

Air pressure also helps to solve daily problems such as:-

- to remove blockage in a sink using a rubber cup
- pouring liquids from a tin
- to hang things using rubber of plstic hooks
- to deliver droplets of water using rubber dropper
- to store gases under high pressure

Answer 8

air pressure holds up you car from inside you tires

Answer 9

Air pressure enables us to breathe (atmospheric pressure, that is). That's why if a plane decompresses the oxygen masks drop... low air pressure means each breath brings in less oxygen. In low enough pressure environments, air would be sucked right out of your body.

This is tied to gravity, but atmospheric pressure enables fire to burn the way we see it. Gravity causes pressure gradients in water (high pressure deep under water as a result of the weight of the water above) and in the atmosphere (same concept). Heat causes air to expand, making it less dense (and lower pressure), and causing it to rise above colder, denser air that decends under the force of gravity. This process enables natural convection currents, which in turn enables a flame to fuel itself by sucking in fresh oxygen at the base. Ever see a flame in outer space? It's spherical, because there's no gravity to cause the hot air in the fire to rise. So, the heat simply expands in all directions. The absence of a convection current means the heat and fire simply expand uniformly in a spherical shape, but the fire can sometimes snuff itself out because it doesn't pull in any oxygen-rich air.

If you're looking forward to going skiing or skating and need some cold weather, look forward to seeing a high-pressure zone on the weather network. As mentioned above, higher pressure designates colder, denser air. Over hot regions of ocean, air rises very quickly, causing very low pressure zones... such low pressure areas can give rise to nasty storms.

Pressurized air is used in all kinds of mechanical systems - anything with pneumatic actuators uses the same technique as the more-familiar hydraulic systems, only pressurized air is used instead of a liquid.

"Air" pressure allows us to store a great deal of propane in a barbecue tank (I use quotes because propane isn't exactly air).

Pressurized air is used by that little instrument the dentist uses to dry your teeth while placing a filling, and cans of pressurized air are sold at computer stores so you can clean dust off your electronics without touching them (and without risking frying your pc, etc... due to static electricity).

Air pressure enables you to drink through a straw (you apply a negative pressure at the top of the straw, causing the atmosphering pressure at the top of your drink to push the contents into the straw).

Air pressure enables airplanes to fly. A great portion of the lifting force is actually generated by suction, rather than by air simply "pusing" the wing up. Wings are carefully designed to force air to flow faster over the top of the wing than the bottom. The higher air speed creates a lower-pressure zone, thus pulling the wing up. The common house fly beats its wings in a funny "figure-8" manner that also creates low pressure zones above them.

Air pressure also allows a pitcher to throw a curve-ball. As the ball spins, one side of it moves forward (same direction as ball motion) while the other side moves backward (counter to the ball's forward flight). This results in higher relative air speeds on the side of the ball that is "spinning forward", thus causing a lower pressure zone that sucks the ball to the side.

There are many more examples.