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high winds
Vada Boyer
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∙ 13y ago- A steep pressure gradient indicates that the isobars are close together, and winds of a hurricane are becoming strong and violent. the pressure gradient is the rate of decrease in pressure in a space in a fixed time. So the steep pressure gradient generates spiraling inward winds of a hurricane, increasing velocity and formation of a hurricane.
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∙ 12y agoscience will find the answer
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∙ 9y agoproduces strong winds
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∙ 9y agoHigh winds
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∙ 13y agohigh winds
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What happens if the air pressure in the throat and outside is less than the air pressure in your middle ear when you swallow?
if the aie pressure in the throat and outside the body is less than the air pressure in your middle ear when you swallow the air pressure in your middle ear reaches the same pressure as the air in your throat and outside , and the eardrum moves quickly back-or'pops' into place
How many cells thick are the walls of alveoli?
It is just one cell thick - or 30 micrometres.
What happens to the air pressure in your chest cavity when you diaphragm relaxes?
OK, do you mean when the airway is open? If open, a slight decrease in pressure momentarily. If closed, a larger decrease in pressure.
What happens during the inhalation phase of breathing?
Inhalation is the process of taking air into the lungs. For this to occur, the air pressure inside the lungs must be lower than that of the external atmosphere as air flows from areas of higher pressure to lower pressure. This is achieved by the contraction of the external intercostal muscles and the relaxation of the internal intercostals which acts to pull the ribcage upwards and outwards, hence, increasing the volume of the thoracic cavity. The diaphragm also contracts to extend the cavity further downwards. Due to the function of the pleural membrane, the size of the lungs is increased which, in turn, creates an area of lower air pressure inside the lungs; hence, air is drawn into the lungs. Exhalation is the process of expelling air out of the lungs. For this to occur, the air pressure inside the lungs must be higher than that of the external atmosphere as air flows from areas of higher pressure to ones of lower pressure. This is achieved by the relaxation of the external intercostal muscles which bring the rib cage inwards and the diaphragm bulges upwards (recoiling to its original shape) respectively. The internal intercostal muscles contract so as to pull the rib cage further inwards, hence, decreasing the volume of the thoracic cavity and that of the lungs which, in turn, creates high pressure in the lungs; hence air is pushed out of lungs. In passive breathing, the movements of the diaphragm are responsible - the ribs aren't needed.
What does Air Pressure mean?
Air pressure is the amount of air pushing down on you over a given area. In weather reports it is generally based on 14.7 lb/in2 as "normal". It rises or lowers with high or low systems and predicts changes in weather such as storms. many household barometers measure air pressure and have an indicator that points to weather conditions such as Fair, Storm, or Change as the pressure changes.
What does steep air pressure gradient cause?
High winds
How does wind behave when it meets a steep slope?
it will make strong winds blow. (A+)
How does strong wind occur?
Strong winds occur when there is a steep gradient in air pressure, i.e. if the difference in air pressure is large, the air moves from the area of higher pressure to the area of lower pressure at a considerable rate, or velocity.
Which weather condition most directly determines wind speeds at Earths surface?
Air pressure Gradient
How refreshing the air in the air sacs helps to maintain a steep diffusion gradient?
It increases the partial pressure of oxygen, so the concentration is higher than that of the blood. Therefore the partial pressure of CO2 decreases , so Co2's concentration is lower than the bloods.
What is a pressure gradient and how is it related to air movement?
Pressure gradient is the rate of pressure change as you change position, not just the difference between the lowest pressure and the highest pressure, but how great (or small) the physical distance between them. Since it the pressure difference that make air flow (wind) the greater the pressure gradient, the greater the wind.
What is another name for a pressure difference between air masses?
pressure gradient
What gradient continues to decrease as you increase in altitude?
Air pressure.
What is the basic underlying reason for the movement of air shown?
differences in air pressure gradient
What is Flowing air responding to the difference between higher and lower pressure is responding to what?
pressure gradient
What does gradient of a river mean?
The gradient of a river is the steepness of its slope.
What forces influences upper air wind flow when a gradient wind is dominant?
Pressure gradient force and coriolis force.
