Tag: in search of the source of wind
Questions Related to in search of the source of wind
Consider the following statements and identify the right ones.
i) The temperature of the air rises when its pressure falls.
ii) The pressure of the air falls when the temperature rises.
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i only
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ii only
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Both of these
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None of these
As air warms up, the molecules in the air become more active and they use up more individual space. This leads to a rise in the air pressure. Similarly, when the air cools down the molecules remain compact, leading to a decrease in air pressure.
In the Earth's atmosphere, the atmospheric pressure ________.
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remains constant with height
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increases with height
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decreases with height
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first increase and then decrease with height
As we go up the pressure decreases with altitude.
This is because at higher altitudes number of air molecules present are low when compared to those that are present in the lower atmosphere.
Moreover gravitational pull which is responsible for atmospheric pressure is low on the molecules that are away from its surface than those that are closer to it.
Which of the following is the unit of Atmospheric pressure?
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Watt
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Calories
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Bars
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Newton
- Bars are the unit of pressure hence C is the correct option.
- Calorie is the unit of energy
- Newton is the unit of force.
- Watt is the unit of power.
Which of the following factor affect atmospheric pressure?
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Altitude
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Temperature and amount of moisture
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Rotation of the earth
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All of the above
A column of air 1 sq. cm. in cross-sectional area extending from sea-level to the top of the atmosphere weights approximately ______.
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933 g wt
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1033 g wt
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1136 g wt
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1360 g wt
The pressure and wind systems are actually the impact of Lithosphere and Hydrosphere on ______.
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Homosphere
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Heterosphere
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Atmosphere
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Troposphere
Atmosphere,
When altitude increases pressure __________.
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increases
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decreases
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remains constant
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none of the above
Air pressure always decrease with the increase of altitude but not always uniform. The decrease is caused by the compressional effect of the air from above and its density. It is estimated that the pressure decreases at an average one centimeter for every 110 meters.
The heat zones of earth arises due to ________ difference.
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temprature
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pressure
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humidity
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All of these
The heat zone of earth arises due to the temperature difference. The classification of heat zones of the earth was first done by Greek Scholar Aristotle. The different heat zones of earth are: - Torrid Zone, Frigid Zone and Temperate zone. All these zones have different temperature range. Torrid Zone is the hottest zone among the zones of the earth.
What is the level of mercury at normal atmospheric pressure?
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64 cm
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70 cm
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76 cm
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80 cm
$76cm$
The weight of humid air is _______ to than dry air.
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more
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less
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equal
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equivalent
The weight of humid air is less to than dry air.