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Water and air have molecules that are spread far apart from each other. When one is placed into a small space, the molecules are forced closer together. The molecules push back against the sides of the container, creating pressure. The smaller the space, the greater the pressure.

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โˆ™ 2005-05-23 19:57:17
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Q: How can air and water make pressure?
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Related questions

Why does water exert greater pressure than air?

water is more dense than air and it has atmospheric pressure also pushing down on it to make it have greater pressure than air.


Why the weather changes?

Is change because the air and the water and the resulting pressure. Is change because the air and the water and the resulting pressure. Is change because the air and the water and the resulting pressure. Is change because the air and the water and the resulting pressure. Is change because the air and the water and the resulting pressure. Is change because the air and water and the resulting pressure gradients stimelate.


When was the air pressure discovered?

Air pressure was discovered in 1817 by Boyle when he did a experiment that showed that air pressure pushes on cardboard to make water stay in a cup when it was flipped upside down.


Air pressure vs water pressure?

Air pressure and water pressure are both considered fluids. Air is compressible and determined by containment; water is determined by the depth.


How do you make water boil at 80 degree?

Lower the air pressure above the water.


Why does water have to do with air pressure?

In a well system, water is propelled by air pressure.


Why is water pressure stronger than air pressure?

Think of it this way, if you had a plastic bottle filled with water and you poked a hole in the side, would water squirt out or would air squirt in? If air squirted in, then the air pressure would have to be higher. But since we know that the water would squirt out, we know that the water's pressure must be stronger. Of course, this is under normal conditions. If you pumped the air pressure up enough, then the air pressure may become stronger than standard water pressure. So actually, water pressure is generally stronger than air pressure.


Why air pressure is lower than water pressure?

Water Pressure is higher because of it's molecular weight as compared to air.


What is the air pressure in the undersea air pocket?

The pressure in an air pocket would have to be equal to the pressure of the surrounding water, and would be equal to the weight of a column of water at that depth.


What are the differences between air pressure and water pressure?

The major difference in air pressure and water pressure is the weight. Water is a lot heavier than air. One cubic foot of air weighs 1/12 of a pound. One cubic foot of water weights approximately 64 pounds.


Why will water evaporate more slowly on humid days?

This effect is caused by the partial pressure of the water vapour in the air. The more humid the air, the more water vapour it contains and thus it has a higher partial pressure. This pressure tends to prevent water from evaporating. When the air is completely dry, there is no partial pressure from any water vapour and water will evaporate more quickly. The partial pressure of the water vapour plus the partial pressures of the other gases in the air all add up to create the total pressure of the air. It follows that water will evaporate more slowly when the total air pressure is high and evaporate more quickly when the total air pressure is low.


Why does air exert pressure?

Air exerts pressure in the same way that water exerts pressure on a diver. Air has weight, and because we are at the bottom of a blanket of air that surrounds the earth, the weight of that air is pressing down on us (creating pressure). If you go under water, you'll feel the additional pressure created by the weight of the water above you.


How does air exert pressure?

Air exerts pressure in the same way that water exerts pressure on a diver. Air has weight, and because we are at the bottom of a blanket of air that surrounds the earth, the weight of that air is pressing down on us (creating pressure). If you go under water, you'll feel the additional pressure created by the weight of the water above you.


Why is air that is pressurized needed in scuba diving?

A person can only breath air that has the same pressure has his or her surroundings. Under water, the pressure will go up fairly quickly (every 10 meter / 33 feet of water exert the same pressure as that on the surface) and the scuba gear will make sure the diver gets air with the same pressure as that of the surroundings.


How does air pressure changes altitude increases?

It decreases. Air pressure is simply the pressure of all the other air on top of it. As you increase in elevation, there is less air on top of you. Therefore, the air pressure is less. As your altitude decreases, there is more air on top of you, therefore, the air pressure increases. Same with water. As you descend, water pressure increases. More on top of you.


Air pressure becomes lowet as water molecules are addrd to the air because water molecules?

Air pressure becomes lower as water molecules are added to the air because water molecules have less weight.


Why is atmospheric pressure and water pressure different?

The big reason is because air is air, and water is water. The second reason is because air is compressible, while water cannot be compressed. What that means is that if you compress air to twice the pressure, it will be one-half the volume. If you compress water to be twice the pressure, the volume won't change.


The weight of air of the atmosphere pressing down on earth?

Air pressure.


Does deep sea have high air pressure or high water pressure?

High water pressure.


Why does the boiling point of water change?

Due to pressure in the air surrounding the water. The higher the altitude of the water is, the less pressure is acting on the water from the surrounding air.


What is required to change water from a liquid to a gas?

To convert water to steam, or, in other words, to make water boil, you need to (1) heat the water, (2) reduce the air pressure around the water, or (3) some combination of heat increase / pressure decrease. It is often said that to boil water you must raise its temperature to 100° C (212° F), but that is true only in standard air pressure near the surface of the earth. You can make water boil without adding any heat to it by putting it in an air-tight box and pumping all of the air out of the box.


Two factors that determine the amount of humidity in the air?

Humidity is largely a function of heat and pressure. Humidity is water vapor in the air. Heat drives water molecules into the air above the water. How many molecules are suspended depends on the heat of the air and the pressure against the water surface. More heat evaporates more water, up until the pressure of the air equals the pressure of the heat driven molecules out. A hot day can evaporate more water, but high enough pressure.


What happens to the boiling point of water when you decrease the air pressure?

As air pressure decreases, the boiling point of water also decreases.


What is a similarity between water pressure and air pressure?

Both air pressure and water pressure are measured in pounds per square inch. {Or some similar label in different parts of the world.}


To make weather maps meteorologists collect and analyze data such as air pressure and what else?

Water caper and jet streams