0
Why is the air pressure higher when you get closer to the ground?
Wiki User
∙ 12y agoWant this question answered?
Be notified when an answer is posted
Add your answer:
Earn +20 pts
When air pressuer increases what does the mercury in the barometer do?
Air is "pushed" into the open end of a barometer when the pressure is higher, meaning the mercury closer to the closed end of the barometer - where the pressure is measured - will rise.
Is the pressure decrease or increase with altitude?
Pressure is due to the number of molecules hitting you or your instrument. As you go up in altitude, there are less molecules hitting you, i.e., the pressure decreases. The higher you go, you are getting thinner atmosphere, which means there are less molecules available, so the pressure is lower. Air molecules are more abundant closer to the surface, and therefore the molecules are closer together, i.e. higher pressure.
Does the temperature increase as you get higher up in the atmosphere?
As you get higher up in the atmosphere there is less and less air on top of your head so there is less weight, meaning there is less pressure. Gravity. Atmosphere will be more compact closer to Earth because particles in the air have mass and are thus pulled down by gravity.
If the air pressure gets higher does it mean that there are more molecules pressing down?
quite right. Air pressure is the result of millions of air molecules impinging on the surface per unit area. The higher the air pressure, the higher the number of strikes from air molecules.
Does air pressure change with altitude?
The higher up you are the lesser the air pressure in the atmosphere.
Do cold air masses have higher or lower air pressure than warm masses?
Yes. Cold air masses have higher density, because the molecules are closer together. That makes them have higher pressure because there is more mass per unit volume pressing down.The molecules are closer together because they are colder, and, with less energy, which is the same as temperature, they vibrate less, so that causes them to move closer together.
Is barometric pressure connected to the temperature?
Barometric pressure has everything to do with temperature. There is a simple way to understand the relationship... The higher the temperature is, the lower the pressure. The lower the temperature is, the higher the pressure. Reasoning: Barometric pressure is caused by expansion and contraction of gaseous molecules(the air we breathe). Heat causes the molecules to expand, and become less dense, causing the warm air to rise, and pressure to be dropped. Cold causes the molecules to contract, making the air become more dense, and fall closer to the ground. Heat is rapidly moving, generously spaced molecules. Cold is slower moving, closer spaced molecules.
Is 36000 feet in the air closer to ground level or space?
It is much closer to the ground.
When air pressuer increases what does the mercury in the barometer do?
Air is "pushed" into the open end of a barometer when the pressure is higher, meaning the mercury closer to the closed end of the barometer - where the pressure is measured - will rise.
How is air pressure effected by altitude?
With a higher altitude, there is a lower air pressure. This is caused by gravity pulling the gas molecules of our atmosphere closer to its surface. when the molecules are farther away from the Earth's surface the gravitational pull is weaker thus making the atmosphere thinner higher up and thicker closer to the surface.
How do you read isobars?
The isobars form layered rings on the weather map.The closer the layers of the rings are to eachother, the lower the air pressure in that area is. The further apart they are the higher the air pressure. The closer the isobars are, the stronger the wind is. The air pressure is also depicted by letters. In an area where the isobars show that it has a high pressure, a 'H' will be in the the centre circle. If there is low air pressure there will be an 'L'. Air pressure is the density of air molecules. High air pressure is heaps of air molecules close together. Low air pressure is when they are far apart. When the air pressure changes from high to low, wind is created.
When you get higher what happens to air pressure?
Air pressure decreases as you go higher.
Why is air pressure greater at a low altitude such as sea level than at a high altitude such as at the top of a mountain?
Air molecules are pushed closer together at sea level because the column of air pushing down is higher, and will tend be even higher at locations below sea level.Although there are constant variations in air pressure due to weather, lower altitudes will generally have a higher pressure than higher altitudes.
What do air density and air pressure have in common?
At a given temperature, the higher the air density, the higher the air pressure.
How is the air pressure around a tree different from the air pressure around a plane?
Trees grow from the ground. The ground is often lower than a plane. If the plane is lower than the ground, the passengers and crew are having a very bad day. Since the typical plane that is flying is flying higher than the trees in the vicinity, it is safe to conjecture that the air pressure around a typical tree is higher than the air pressure around a typical plane flying in the vicinity of those trees.
When higher in the air the air pressure what?
Air pressure starts to go away
When a warm air mass overtakes a cold air mass it form a?
Yes. Cold air masses have higher density, because the molecules are closer together. That makes them have higher pressure because there is more mass per unit volume pressing
