Which layer of the earths atmosphere exerts the least air pressure?
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Answer . 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. (MORE)
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 crea…ted by the weight of the water above you. . (MORE)
if u think it exerts then it exerts if u don't think so it don't exert
air pressure is mainly of two types high pressure and low pressuring speed of air increase over a surface , a low pressure is created. . which was discovered by Daniel Bernoulli it was called the Bernoulli's principle
It is the exosphere because the molecules are spread out more. It is the farthest layer from the earth.
It's the troposphere because : The troposphere contains 75 per cent of the atmosphere's gas. It also holds huge amounts of dust and water vapor, and is often dense with clouds and mist. Air pressure is greatest in the troposphere, because gravity pulls the atmosphere towards the Earth, squeezing mo…st of its weight into this lowest layer. (MORE)
The exosphere is the atmospheric layer that has the lowest airpressure. This layer is the outermost layer of the atmosphere.
Yes. All gases exert some pressure due to the weight of their molecules. But it depends on the concentration of the gas (mass per volume) and will vary with temperature and flow velocity. In the atmosphere, air pressure is created by gravity, which pulls down on the molecules at the surface and th…ose stacked up above it. The downward pressure of each "stack" of molecules, from the surface to space, translates into force exerted on all sides of any object in the atmosphere. It is about about 14.7 psi or lbs per square inch at sea level, and less than that at higher altitudes. Cold air, which has molecules closer together, is denser than warm air, and moving air exerts additional pressure in the direction of motion. Air masses that are denser will move under (and displace) warmer air masses. (MORE)
The original experiment that demonstrated this was a portable mercury column. If you have a large bowl full of Mercury (a liquid metal) and a 1 meter long glass tube open at one end, then you can make a simple barometer. First, completely fill the tube with mercury, and temporarily close of the o…pen end of the glass tube with a fitted seal, so the glass tube will be completely full of mercury and closed at both ends. Then stand the inverted tube (with its sealed end in the bowl of mercury), and while the end of the tube is immersed in the mercury, remove the fitted seal, allowing the mercury trapped inside the tube to flow into the bowl. Some of the mercury will flow out of the tube into the bowl, but the air pressure will cause the remaining mercury remain in the tube up to a height of (about) 760 mm above the mercury level in the bowl. The volume in the tube above the column of mercury will be filled with a vacuum. . If you were to then take your portable barometer on a hike up a mountain, you would notice that the volume of the vacuum in the tube would become greater, and the column of mercury in the tube become shorter. This is because the atmospheric pressure keeping the mercury up the tube is lower at a higher altitude. . Note: Mercury is a dangerous substance and must be handled with care. The above experiment should not be attempted except under the supervision of qualified laboratory personnel. . See the related link below. (MORE)
1. Troposphere (8-18km above Earth's surface). 2.Stratosphere (50km above Earth's Surface). 3. Mesosphere (50-85km). 4.Thermosphere (85-450km). 5.Exosphere (450-10,000km)
http://www.windows.ucar.edu/tour/link=/earth/Atmosphere/layers.html Exosphere That's the outer most layer in the atmosphere. It experiences very low pressures due to the weak gravity at such astronomically high altitudes, and thus the more massive and heavy gases are in levels of the atmosphere, …such as the Troposphere. (MORE)
Air produces a force on the surface of an object (in this case the earth) because of the movement of the particles that make up air. This force over a defined area is known as pressure.
1. Filling a test tube with water and putting a piece of plastic on it and turning it upside down.(the water does not come out). 1.means that there is a pressure holding the water in the tube so two proves. 2. Putting in air in a syringe and putting a cap on the end, later holding the cap in placege…ntly pushing the plunger down with your thumb and releasing the plunger. 2. proves it air pus the cap out so it means it exerted a pressure. 3. Putting an unused balloon inside a bottle and then trying to blow it up while the balloon is in the bottle. 3. if u exert enough pressure it will break the bottle so 3 is also checked this is Radhika hope u lik it :D (MORE)
you put a cap loosely on a soda bottle. then you stomp on it :o
It depends on the situation. In a contained vessel (eg a tyre), then hot air would exert a higher pressure. In general outside the pressure is (fairly) constant, and it is the density which changes with temperature. Imagine if this weren't true; you could have two pockets of air next to each othe…r at different temperatures, and thus also at different pressures. In reality this leads to the pressure region expanding (and so decreasing in pressure), squashing the lower pressure region (increasing its pressure). This would continue until the pressures were the same in both regions. (MORE)
Hmm... let me see. Hey, Mom, what's the answer? Oh, that's right. The Exosphere is the answer to this question.
If you evacuate all the air between 2 pieces of glass, the glass is pressed together by atmospheric pressure from the outside. By measuring the force needed to separate the panes of glass, one can extrapolate the pressure exerted on the glass.
The four main layers of the atmosphere are the exosphere, where satellites orbit; the thermosphere, where temperatures increase; the mesosphere, where meteors are slowed down; and the troposphere, where life thrives.
All directions, just like water when you are diving. That is why chocolate-covered cream cakes (and a lot of other stuff) stay together at atmospheric air pressures, but will explode in vacuum, or why water will boil at lower temperatures on high mountains.
The simple answer is yes. But ... ... Pressure = 1/volume Hence to allow pressure =0, volume must be infinitely large. Say for example in outer space.
Judging by the fact that it is the closest to outer space, which has no air pressure at all, I believe it's the exosphere.
The troposphere is the layer of the earth's atmosphere with the highest air pressure. This is because the troposphere is the layer closest to the Earth's surface. As a result, the air is quite dense in the troposphere. As pressure is directly proportional to density, it means that the atmospheric pr…essure would be greatest in the troposphere. (MORE)
air is like water--meaning that it's fluid.. and, like water, air exerts pressure when it is moving (and in any direction, too).
A large syringe or a bicycle pump is the best way. Place and hold a ball over the end of a large syringe, depress the plunger and let go of the ball You can put an empty soda bottle in your mouth and suck out the air. The outside air exerts pressure, collapsing the bottle.
The atmosphere exerts pressure on various objects on the earth'ssurface. Air pressure is generally caused by the collision of thegas molecules with one another.
Trophosphere- where most weather takes place Stratosphere- contains hardly any water Mesosphere- protects Earth from getting hit by meteoroids Thermosphere- near the top, the air is very thin Your Welcome !
As we know air is everywhere and we can't survive without air. It consists of various gases, dust particles, water vapors, etc. Air exerts a particular pressure on every single thing. Air pressure is calculated with the help of an instrument called barometer and according to it, the Earth's atmosphe…ric pressure is 14.7 psi (pounds per square inch). We can't feel this pressure because it is everywhere. But if we are in a vacuum or in outer space where there is no air we have to use pressurized suits to protect our body. This is the reason why astronauts wear space suits. Here we are going to take a look at some air pressure experiments which will prove the existence of air pressure and will show that it has weight too. Interesting Experiments to Measure Air Pressure . The experiments given below are easy to perform and need few things which are easily available at home. These air experiments for kids should be performed under the supervision of elders. Kids can also use these experiments as their physics projects. Marshmallows Experiment . Take a glass jar and empty it completely. Add small pieces of marshmallows inside the jar and seal it with a wine vacuum cork. Attach a manual pump over the cork and try to pump as much air out of the jar as you can. This will make the marshmallows pieces swell and you will observe them growing. Now break the seal. As soon as the seal breaks and air comes rushing inside the jar, the marshmallows cramp down and return to its old size. Water Glass Experiment . This is one of the best experiments to measure air pressure. Take a glass and fill one-third of it with water. Place a cardboard over the mouth of the glass. The cardboard should be bit bigger than the glass' mouth. Now apply some pressure on the cardboard from the left hand and invert the glass with the right hand. Slowly remove the hand and see what happens. The water does not fall from the glass, retaining the cardboard and the water in the same place as before. This takes place because the air pressure outside, i.e., 14.7 psi, is heavier than the combined weight of water and air inside the glass. Balloon Experiment . This experiment with balloon will show you what air pressure can do. Take a balloon and blow it. Now stretch the mouth of the balloon, pinching the ends of the mouth so that you can hear a loud squeaking noise. You can also alter this sound and pitch. But the question is why a balloon makes such sounds? The reason for it is air pressure. When you stretch its mouth it leaves very little space for the air to come out. So because of the air pressure the mouth of the balloon vibrates which makes such sound. Ask someone else to perform this experiment so that you can touch below the mouth of the balloon and feel the vibration. Egg Experiment . Take a hard-boiled egg and remove its shell. Take a bottle whose mouth is large enough to squeeze the egg inside it without squashing it but should also not easily allow the egg to enter the bottle. Now light a matchstick put it inside the bottle and immediately close its mouth with the egg. The match stick will utilize the oxygen inside the bottle and will create a low air pressure. High pressure outside the bottle will push the egg inside. This experiment with the air pressure shows how strong it can be. Paper Experiment . Take a sheet of paper and hold the edges near to your lips. Place it at the bottom of your lips and try to blow hard. You may have to put the paper in different places to find the exact position. Now when you blow it the paper will fly up. This is because of air pressure. As you blow from the upper side of the paper it creates an area of low pressure above the paper and high pressure at the bottom of the paper. This high pressure forces it to fly in an upward direction. By this concept you can understand how do airplanes fly. They reach the height only because of air pressure. Ping Pong Experiment . For this experiment, you will need a ping pong ball and a funnel. Place the ball in the funnel, and hold it in such a way that the wider part faces the ceiling. Now tilt your head and blow into the funnel. No matter how hard you blow the ball remains in the funnel without falling out. This happens due to the fact that the air blown at high speed decreases the pressure in the funnel. The outer air pressure also pushes the ball. Reduction in pressure inside the funnel and push from external pressure make the ball remain inside the funnel. I hope you had a good time reading such simple, interesting and useful experiments to prove the air pressure around us. These air pressure experiments are basically for kids but elders can also enjoy doing it at home. So, try them and yes do let me know about your experiences. (MORE)
What is the relationship between temperature air pressure and density in the layers of the earth's atmosphere?
With increasing altitude in the atmosphere, pressure decreases andso does density. Temperature varies depending on the layer in whichthe air is. The top of the stratosphere can be -50 degrees C, aswhere the thermosphere can be well over 500 degrees C. At ground level (0 feet above sea level) we con…sider a standardpressure reading to be 29.92 inches of Mercury. At 1000 feet abovesea level this pressure would be reduced to 29.82. This is a basicprinciple of Altimeters for aircraft. Temperature is slightly trickier, but we also have what is called astandard lapse rate. The factors here depend on many things, but arule of thumb is about 3 degrees (F) per thousand feet. Using thisrule of thumb, you can find the base cf clouds (roughly) by lookingat the dew point verses the temp. If the difference is large,clouds will be high. If the difference is small (say 3 Degrees) theclouds will be low, around 1000 feet. (MORE)
The most widely used analysis of Earth's atmosphere is into five layers. From the surface of the planet out into space, they are: Troposphere - from the surface to between 7 and 17 km (depending on latitude) Stratosphere - Tropospheric boundary to about 50 km Mesosphere - ~50 km to ~85 km Ther…mosphere - ~85 km to between 350-800km (depending on solar activity) Exosphere - Thermospheric boundary to ~10,000 km (MORE)
The different "layers" are classifications of horizontal sections of the atmosphere, volumes which exhibit different attributes. The high and low pressure regions are areas where the atmosphere is thicker or thinner.
The troposphere. The lower you go, the higher the air pressure. The average air pressure at sea level is 1013 mbar, or 101.3 kPa.
Gravity is an entirely separate entity which is a consequence only of the mass of the earth itself. In fact, the atmosphere presses down because gravity is pulling on it.
Yes. Atmospheric pressure is the pressure caused by air when it exerts pressure on the surface of earth.
Not as much "a" layer of air as it is "the" layer of air. The atmosphere is the four major regions of air: Troposphere, Stratosphere, Mesosphere, Thermosphere
Here we consider a system as an open system .Now air forms the remaining system lwhich occupies remaining volume .;the considered system being small with respect to the volume enclosed by air ,there exists force exerted by air on this system in order to cover up the entire volume.----this is nothing… but pressure (MORE)
Because our bodies exert counter pressure and prevents it from bursting. Because the pressure inside your body is the same and cancels it out. The entire human body, including all the bones, tubes, sacks, and fluids in it, is constructed to develop an outward pressure that compensates for the …inward atmospheric pressure. Which is one of the main reasons why you don't want to take off your space suit during a space walk ... your body could possibly inflate to the point where it would be tough for your buddies to squeeze you back inside through the port. (In addition to other space discomforts, of course.) (MORE)
Air expands to the container it is in. The container the air is in is the atmosphere. The air expands evenly in the container, so the pressure is applied evenly. However, because of the weight of air, more pressure is applied when closer to the ground then when higher up.
There is about 2 ton of air on every square foot of the Earth (less at high altitudes)
Cold air exerts a low pressure. That is why cold air falls and hotter air rises above it.
yes....it consists of five layers. the trophosphere the stratosphere the mesoshere the thermosphere and the exosphere
The atmosphere is made up of gasses. Gasses are physical substances, and all physical substance has weight. The atmosphere is 25 miles thick, and that 25 miles thick layer of gasses presses down on earth with a weight of 15 lbs. per square inch. That's how atmosphere exerts pressure on the earth.
That's the weight of the air. If you were to divide the total weight of the atmosphere by the Earth's total surface area, the quotient would be the atmospheric pressure at the surface.
The atmosphere consists of 5 layers: the troposphere, which we live in; followed by stratosphere, mesosphere, thermosphere and exosphere. Air pressure at any of these layers is typically caused by hydrostatic pressure, defined as P = hpg, where P is the pressure, h is the height or depth of fluid, a…nd g is the gravitational acceleration. In simple context, my physics lecturer once explained to me: the reason why we live under an atmospheric pressure of 1 bar is simply because there is a column of air above us. As we move upwards (e.g. in an airplane or on top of a mountain), the height of this column is reduced, thus the atmospheric pressure is less. Therefore, the first layer of atmosphere (or the lowest layer) will experience the highest air pressure. (MORE)
14.7 pounds. Atmospheric pressure is 14.7 pounds per square inch Keep in mind that unless air is trapped you do not feel this as pressure is equalized
We are so used to our atmospheric pressure down here on earth that we tend to think of it as the absolute norm; more often we don't think of it at all. The truth is that zero pressure, the theoretical pressure in deep space, or very close to it, is the situation in vastly more of the universe's volu…me than planetary pressure. Zero pressure is the standard. In space, there are particles and some mind bogglingly thin gases, but for most applications we could think of, these things would produce negligible pressure on an object. Earth has atmospheric pressure only because earth has an atmosphere, along with sufficient gravity to hold it down, and magnetic field properties that prevent our atmosphere from being stripped off little by little by solar winds. At sea level on average, the pressure of our atmosphere will push mercury up into a vacuum tube about 760mm. There are several other ways to think about and to measure atmospheric/barometric pressure. (MORE)
No. The atmosphere is the least dense layer. The densest layer is the inner core.
In the four main layers of the earth\'s atmosphere weather occurs in the troposphere, airplanes fly in the stratosphere, meteors are burned in the mesosphere, and satellites are placed in the thermosphere.
the barometric pressure combined with the heat of the sun creates an expansion pressure which increase toward the earth's surface
Pressure does not increase with altitude. It is theopposite; pressure decreases with altitude. The reason for this isthat there is less atmosphere to exert pressure as you increase inaltitude.
Air pressure change in each layer of the earth as altitudeincreases due to variation in the density of air. At high altitude,air pressure is low due to less density of air up there..while atsea level..air pressure is at utmost of it due to increase in thedensity of air.