What is the atmospheric pressure on the earth's surface ?

What is the atmospheric pressure on the earth's surface ?
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Answer :

Atmospheric pressure on the Earth's surface is about `10 ^ 5N` per square meter
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By what name is the atmospheric layer farthest from the Earth's surface? -General Knowledge

Description : By what name is the atmospheric layer farthest from the Earth's surface? -General Knowledge

Last Answer : Exosphere. The exosphere is the most distant atmospheric region from Earth's surface.

By what name is the atmospheric layer farthest from the Earth's surface? -General Knowledge

Description : By what name is the atmospheric layer farthest from the Earth's surface? -General Knowledge

Last Answer : Exosphere. The exosphere is the most distant atmospheric region from Earth's surface.

By what name is the atmospheric layer farthest from the Earth's surface? -General Knowledge

Description : By what name is the atmospheric layer farthest from the Earth's surface? -General Knowledge

Last Answer : answer:

The atmospheric layer farthest from the Earth's surface is known as– (1) Stratosphere (2) Exosphere (3) Ionosphere (4) (4)Mesosphere

Description : The atmospheric layer farthest from the Earth's surface is known as– (1) Stratosphere (2) Exosphere (3) Ionosphere (4) (4)Mesosphere

Last Answer : (2) Exosphere Explanation: The Radio waves are reflected back to Earth in the Ionosphere which is an electrically charged layer of the upper atmosphere. This process is used to communicate beyond the horizon, at intercontinental distances, mostly in the shortwave frequency bands.

There are five concentric layers within the atmosphere which is differentiated on the basis of temperature. The atmospheric layer which lies close to the earth's surface in which human being along with other organisms live is called troposphere. The rate at which air temperature in the troposphere gradually decreases with height is about __________ °C/km. (A) 0.05 (B) 1 (C) 6.5 (D) 15

Description : There are five concentric layers within the atmosphere which is differentiated on the basis of temperature. The atmospheric layer which lies close to the earth's surface in which human being along with other organisms live is called ... is about __________ °C/km. (A) 0.05 (B) 1 (C) 6.5 (D) 15

Last Answer : (C) 6.5

What refers to the heating of the earth’s atmosphere not caused by direct sunlight but by infrared light radiated by the surface and absorbed mainly by atmospheric carbon dioxide?  A. Greenhouse effect  B. Global warming  C. Thermal rise effect  D. Ozone effect

Description : What refers to the heating of the earth’s atmosphere not caused by direct sunlight but by infrared light radiated by the surface and absorbed mainly by atmospheric carbon dioxide?  A. Greenhouse effect  B. Global warming  C. Thermal rise effect  D. Ozone effect

Last Answer : Greenhouse effect

The atmospheric layer farthest from the Earth’s surface is known as (1) Stratosphere (2)Exosphere (3) Ionosphere (4)Mesosphere

Description : The atmospheric layer farthest from the Earth’s surface is known as (1) Stratosphere (2)Exosphere (3) Ionosphere (4)Mesosphere

Last Answer : Exosphere

A falling drop of rain water ac-quires the spherical shape due to – (1) Viscosity (2) Surface Tension (3) Atmospheric pressure (4) Gravitational force

Description : A falling drop of rain water ac-quires the spherical shape due to – (1) Viscosity (2) Surface Tension (3) Atmospheric pressure (4) Gravitational force

Last Answer : (2) Surface Tension Explanation: Raindrops start out as round high in the atmosphere as water collects on dust and smoke particles in clouds. But as raindrops fall, they lose their rounded ... the molecules stick together. The cause is the weak hydrogen bonds that occur between water molecules.

A rectangle-shaped open-to-sky tank of water has a length of 2 m and a width of 1 m. If the atmospheric pressure is assumed to be 100 kPa and thickness of the tank walls is assumed to be negligible, the force exerted by the atmosphere on the surface of water is A. 20 kN B. 50 kN C. 100 kN D. 200 kN

Description : A rectangle-shaped open-to-sky tank of water has a length of 2 m and a width of 1 m. If the atmospheric pressure is assumed to be 100 kPa and thickness of the tank walls is assumed to be negligible, the force exerted by ... of water is A. 20 kN B. 50 kN C. 100 kN D. 200 kN

Last Answer : 200 kN

A falling drop of rain water acquires the spherical shape due to (1) Viscosity (2) Surface Tension (3) Atmospheric pressure (4) Gravitational force

Description : A falling drop of rain water acquires the spherical shape due to (1) Viscosity (2) Surface Tension (3) Atmospheric pressure (4) Gravitational force 

Last Answer : Surface Tension

In the earth’s atmosphere, what changes in the atmospheric pressure?

Description : In the earth’s atmosphere, what changes in the atmospheric pressure?

Last Answer : Decreases with height

In the earth’s atmosphere, what changes in the atmospheric pressure?

Description : In the earth’s atmosphere, what changes in the atmospheric pressure?

Last Answer : Decreases with height

Which atmospheric layer is closest to the earths crust?

Description : Which atmospheric layer is closest to the earths crust?

Last Answer : troposphere A+

Is a loss of power of a satellite downlink signal due to earth’s atmosphere. A. Atmospheric loss B. Path loss C. Radiation loss D. RFI

Description : Is a loss of power of a satellite downlink signal due to earth’s atmosphere. A. Atmospheric loss B. Path loss C. Radiation loss D. RFI

Last Answer : B. Path loss

If a body weighs 12N on the surface of the earth, how much will it weigh on the surface of the moon where acceleration due to gravity is only one-sixth of that on earth's surface? (1) 12N (2) 2N (3) 10N (4) 6N

Description : If a body weighs 12N on the surface of the earth, how much will it weigh on the surface of the moon where acceleration due to gravity is only one-sixth of that on earth's surface? (1) 12N (2) 2N (3) 10N (4) 6N

Last Answer : (2) 2N Explanation: Weight is mass x g. Since mass is constant and g is only 16thof that on the earth. The weight on the moon is only 16th of that on the earth.

The height of a geo-stationary satellite from the Earth's surface is approximately : (1) 36,000 km (2) 42,000 km (3) 30,000 km (4) None of these

Description : The height of a geo-stationary satellite from the Earth's surface is approximately : (1) 36,000 km (2) 42,000 km (3) 30,000 km (4) None of these

Last Answer : (1) 36,000 km Explanation: A geostationary orbit is a circular orbit 35,786 kilometres above the Earth's equator and following the direction of the Earth's rotation. Communications satellites and weather ... to track them, but can be pointed permanently at the position in the sky where they stay.

Which layer of the earth’s atmosphere reflects back the radio waves to the earth’s surface? (1) Ionosphere (2) Stratosphere (3) Mesosphere (4) Exosphere

Description : Which layer of the earth’s atmosphere reflects back the radio waves to the earth’s surface? (1) Ionosphere (2) Stratosphere (3) Mesosphere (4) Exosphere

Last Answer : (1) Ionosphere Explanation: Long distance propagation of radio waves depends on an invisible layer of charged particles, which envelops the Earth. This layer of charged particles known as the ionosphere ... communication during the early part of the twentieth century, the ionosphere came as a boon.

The energy that can harness heat stored below the earth's surface is known as – (1) thermal energy (2) nuclear energy (3) tidal energy (4) geothermal energy

Description : The energy that can harness heat stored below the earth's surface is known as – (1) thermal energy (2) nuclear energy (3) tidal energy (4) geothermal energy

Last Answer : (4) geothermal energy Explanation: Geothermal energy is thermal energy generated and stored in the Earth. The Geothermal energy of the Earth's crust originates from the original formation of the planet (20%) ... , with the largest capacity in the United States (3,086 MW), Philippines, and Indonesia.

Assuming uniform density of the core, the acceleration due to gravity below the Earth's surface is A. inversely proportional to the square of the distance from the center of the Earth B. inversely proportional to the distance from the center of the Earth C. directly proportional to the square of the distance from the center of the Earth D. directly proportional to the distance from the center of the Earth

Description : Assuming uniform density of the core, the acceleration due to gravity below the Earth's surface is A. inversely proportional to the square of the distance from the center of the Earth ... center of the Earth D. directly proportional to the distance from the center of the Earth

Last Answer : directly proportional to the distance from the center of the Earth

An object dropped from rest near the Earth's surface will fall how far in the first second: w) 4.9 meters x) 9.8 meters y) 16.0 meters z) 32 metersAn object dropped from rest near the Earth's surface will fall how far in the first second: w) 4.9 meters x) 9.8 meters y) 16.0 meters z) 32 meters

Description : An object dropped from rest near the Earth's surface will fall how far in the first second: w) 4.9 meters x) 9.8 meters y) 16.0 meters z) 32 meters

Last Answer : ANSWER: W -- 4.9 METERS

The kinetic energy of a stone falling near the earth's surface through a vacuum increases with the: w) square root of its velocity x) cube root of its velocity y) square of its velocity z) cube of its velocity

Description : The kinetic energy of a stone falling near the earth's surface through a vacuum increases with the: w) square root of its velocity x) cube root of its velocity y) square of its velocity z) cube of its velocity

Last Answer : ANSWER: Y -- SQUARE OF ITS VELOCITY

After a projectile is fired horizontally near the earth's surface, the horizontal component of its velocity, neglecting any air resistance: w) increases steadily x) decreases steadily y) first decreases, then increases z) remains constant

Description : After a projectile is fired horizontally near the earth's surface, the horizontal component of its velocity, neglecting any air resistance: w) increases steadily x) decreases steadily y) first decreases, then increases z) remains constant

Last Answer : ANSWER: Z -- REMAINS CONSTANT 

The energy that can harness heat stored below the earth’s surface is known as ; (1) thermal energy (2) nuclear energy (3) tidal energy (4) geo-thermal energy

Description : The energy that can harness heat stored below the earth’s surface is known as ; (1) thermal energy (2) nuclear energy (3) tidal energy (4) geo-thermal energy

Last Answer : geo-thermal energy

The height of a geo-stationary satellite from the Earth’s surface is approximately : (1) 36,000 km (2) 42,000 km (3) 30,000 km (4) None of these

Description : The height of a geo-stationary satellite from the Earth’s surface is approximately : (1) 36,000 km (2) 42,000 km (3) 30,000 km (4) None of these

Last Answer :  36,000 km

Which layer of the earth’s atmosphere reflect back the radio waves to the earth’s surface ? (1) ionosphere (2) stratosphere (3) mesosphere (4) exosphere

Description : Which layer of the earth’s atmosphere reflect back the radio waves to the earth’s surface ? (1) ionosphere (2) stratosphere (3) mesosphere (4) exosphere 

Last Answer : ionosphere

How does the last amount of liquid in a straw get into your mouth when the cup is empty and there is no more surface liquid for atmospheric pressure to work on forcing the liquid up the straw?

Description : How does the last amount of liquid in a straw get into your mouth when the cup is empty and there is no more surface liquid for atmospheric pressure to work on forcing the liquid up the straw?

Last Answer : Air pressure within the straw.

Consider the following places: 2. Shimla 3. Gangtok 4. Mumbai 5. Delhi Arrange these places in decreasing order of their atmospheric pressure on their ground surface using the codes given below: [CDS 2002] (a) 3, 4, 1, 2 (b) 4, 3, 2, 1 (c) 3, 1, 4, 2 (d) 2, 4, 1, 3

Description : Consider the following places: 2. Shimla 3. Gangtok 4. Mumbai 5. Delhi Arrange these places in decreasing order of their atmospheric pressure on their ground surface using the codes given below: [CDS 2002] (a) 3, 4, 1, 2 (b) 4, 3, 2, 1 (c) 3, 1, 4, 2 (d) 2, 4, 1, 3

Last Answer : Ans: (b)

Water always boils when its (A) Temperature reaches 100° C (B) Vapour pressure equals 76 cm of Hg (C) Saturated vapour pressure equals the external pressure on its surface (D) Saturated vapour pressure is less than the atmospheric pressure

Description : Water always boils when its (A) Temperature reaches 100° C (B) Vapour pressure equals 76 cm of Hg (C) Saturated vapour pressure equals the external pressure on its surface (D) Saturated vapour pressure is less than the atmospheric pressure

Last Answer : (C) Saturated vapour pressure equals the external pressure on its surface

Pick up the incorrect statement from the following: (A) Free surface ground water is subjected to atmospheric pressure (B) Water table surface rises and falls with seasons (C) Depth of water table is directly proportional to the rate of drawl of water (D) Level of water table remains stationary

Description : Pick up the incorrect statement from the following:  (A) Free surface ground water is subjected to atmospheric pressure  (B) Water table surface rises and falls with seasons  (C) ... directly proportional to the rate of drawl of water  (D) Level of water table remains stationary 

Last Answer : (D) Level of water table remains stationary 

The zero atmospheric pressure is at (A) Sea level (B) Water table (C) Phreatic surface (D) Both (B) and (C) of the above

Description : The zero atmospheric pressure is at (A) Sea level (B) Water table (C) Phreatic surface (D) Both (B) and (C) of the above

Last Answer : (D) Both (B) and (C) of the above

Rain drops are spherical because of (A) Viscosity (B) Air resistance (C) Surface tension forces (D) Atmospheric pressure

Description : Rain drops are spherical because of (A) Viscosity (B) Air resistance (C) Surface tension forces (D) Atmospheric pressure

Last Answer : Answer: Option C

If the atmospheric pressure on the surface of an oil tank (sp. gr. 0.8) is 0.2 kg/cm", the pressure at a depth of 50 m below the oil surface will be (A) 2 meters of water column (B) 3 meters of water column (C) 5 meters of water column (D) 6 meters of water Column

Description : If the atmospheric pressure on the surface of an oil tank (sp. gr. 0.8) is 0.2 kg/cm", the pressure at a depth of 50 m below the oil surface will be (A) 2 meters of water column (B) 3 meters of water column (C) 5 meters of water column (D) 6 meters of water Column

Last Answer : Answer: Option D

Surface energy per unit area of a surface is numerically equal to (A) Atmospheric pressure (B) Surface tension (C) Force of adhesion (D) Force of cohesion

Description : Surface energy per unit area of a surface is numerically equal to (A) Atmospheric pressure (B) Surface tension (C) Force of adhesion (D) Force of cohesion

Last Answer : Answer: Option B

What type of pressure cannot be used for Boyle’s Law?  a. Atmospheric Pressure  b. Gauge Pressure  c. Surface Pressure  d. Isobaric Pressure

Description : What type of pressure cannot be used for Boyle’s Law?  a. Atmospheric Pressure  b. Gauge Pressure  c. Surface Pressure  d. Isobaric Pressure

Last Answer : Gauge Pressure

_________ is defined as that equivalent to the pressure due to a column of mercury 76cm long.  a. surface pressure  b. gage pressure  c. standard atmospheric pressure  d. isobaric pressure

Description : _________ is defined as that equivalent to the pressure due to a column of mercury 76cm long.  a. surface pressure  b. gage pressure  c. standard atmospheric pressure  d. isobaric pressure

Last Answer : standard atmospheric pressure

Which one of the following statements is correct ? a) For water at 100o Celsius at sea level, the vapour pressure is equal to atmospheric pressure b) Surface energy (or tension) is caused by the force of adhesion between liquid molecules c) Viscosity of a fluid is the property exhibited by it both in static and in dynamic conditions d) Air is 50,000 times more compressible than water

Description : Which one of the following statements is correct ? a) For water at 100o Celsius at sea level, the vapour pressure is equal to atmospheric pressure b) Surface energy (or tension) is caused by ... it both in static and in dynamic conditions d) Air is 50,000 times more compressible than water

Last Answer : c) Viscosity of a fluid is the property exhibited by it both in static and in dynamic conditions

Why does atmospheric pressure change over time ?

Description : Why does atmospheric pressure change over time ?

Last Answer : The amount of water vapor present in the air decreases with time and the density of air changes. This is why atmospheric pressure changes over time. As the air temperature changes, so does the density, and so does the pressure.

Why does atmospheric pressure decrease when the amount of water vapor in the air increases ?

Description : Why does atmospheric pressure decrease when the amount of water vapor in the air increases ?

Last Answer : As water vapor is lighter than air, the pressure in the atmosphere decreases as the amount of water vapor in the air increases. During cooking, water vapor is seen rising upwards. This indicates that ... of air decreases. So as the amount of water vapor in the air increases, the pressure decreases.

What is atmospheric pressure ?

Description : What is atmospheric pressure ?

Last Answer : The amount of force applied by the atmosphere per unit area of ​​the earth per unit area for its weight is called atmospheric pressure of that place.

What is atmospheric pressure ?

Description : What is atmospheric pressure ?

Last Answer : The amount of force applied by the atmosphere per unit area of the earth for its weight per unit area is called atmospheric pressure of that place.

The wall of a dam is broader at the base (1) because streamlining is required (2) to withstand pressure that increases with depth (3) to withstand pressure that increases in a horizontal plane (4) to withstand pressure that is increased with atmospheric pressure

Description : The wall of a dam is broader at the base (1) because streamlining is required (2) to withstand pressure that increases with depth (3) to withstand pressure that increases in a horizontal plane (4) to withstand pressure that is increased with atmospheric pressure

Last Answer : (2) to withstand pressure that increases with depth Explanation: Darns are built broader at the base for two reasons. The first is because it needs to be stable enough to support the dam, and two, ... the structure the lower levels of water are at higher pressure than the upper levels of the water.

At boiling point of liquids, its : (1) Temperature increases (2) Atmospheric pressure increases (3) Timperature remains increases (4) Vapour pressure decreases

Description : At boiling point of liquids, its : (1) Temperature increases (2) Atmospheric pressure increases (3) Timperature remains increases (4) Vapour pressure decreases

Last Answer : (3) Timperature remains increases

In severe winter, in cold countries water pipes burst because – (1) Water expands on freezing (2) Contraction of water pipes (3) High atmospheric pressure (4) Combined effect of all the above three

Description : In severe winter, in cold countries water pipes burst because – (1) Water expands on freezing (2) Contraction of water pipes (3) High atmospheric pressure (4) Combined effect of all the above three

Last Answer : (1) Water expands on freezing Explanation: Most liquids have a quite simple behavior when they are cooled (at a fixed pressure): they shrink. The liquid contract as it is cooled; ... substance solidifies, which causes it to contract some more because crystalline solids are usually tightly packed.

The boiling point of water decreases at higher altitudes is due to – (1) low temperature (2) low atmospheric pressure (3) high temperature (4) high atmospheric pressure

Description : The boiling point of water decreases at higher altitudes is due to – (1) low temperature (2) low atmospheric pressure (3) high temperature (4) high atmospheric pressure

Last Answer : (2) low atmospheric pressure Explanation: At higher altitudes, the air pressure is decreased, which forces water's boiling point to lower. The air pressure decreases with altitude because of the ... of air. The lowered boiling point of water requires an increase in cooking times or temperature.

The colours of stars depend on their – (1) temperature (2) distance (3) radius (4) atmospheric pressure

Description : The colours of stars depend on their – (1) temperature (2) distance (3) radius (4) atmospheric pressure

Last Answer : (1) temperature Explanation: The colour of a star tells about its temperature, and the temperature depends on some combination of the star's mass and evolutionary phase.

The boiling point of water depends upon the – (1) atmospheric pressure (2) volume (3) density (4) mass

Description : The boiling point of water depends upon the – (1) atmospheric pressure (2) volume (3) density (4) mass

Last Answer : (1) atmospheric pressure Explanation: The boiling point corresponds of water to the ternperature at which its vapour pressure equals the surrounding environmental pressure. So it is dependent on ... pressure decreases. As this pressure decreases, the boiling point of the water also decreases.

Which instrument is used to record Atmospheric pressure? (1) Thermometer (2) Barometer (3) Seismometer (4) Oscilloscope

Description : Which instrument is used to record Atmospheric pressure? (1) Thermometer (2) Barometer (3) Seismometer (4) Oscilloscope

Last Answer : (2) Barometer Explanation: A barometer is a scientific instrument used in meteorology to measure atmospheric pressure. A barometer using mercury is common. This is often recorded as mm Hg.

At boiling point of liquids, its – (1) Temperature increases (2) Atmospheric pressure increases (3) Temperature remains constant (4) Vapour pressure decreases

Description : At boiling point of liquids, its – (1) Temperature increases (2) Atmospheric pressure increases (3) Temperature remains constant (4) Vapour pressure decreases

Last Answer : (3) Temperature remains constant Explanation: An interesting property of matter is that its temperature remains constant during a phase change, assuming its surrounding pressure is constant. A liquid changes into gaseous state at a constant temperature called its boiling point.

Water from soil enters into the root hairs owing to : (1) Atmospheric pressure (2) Capillary pressure (3) Root pressure (4) Osmotic pressure

Description : Water from soil enters into the root hairs owing to : (1) Atmospheric pressure (2) Capillary pressure (3) Root pressure (4) Osmotic pressure

Last Answer : (2) Capillary pressure Explanation: In plants, the transpiration stream is the uninterrupted stream of water, and other, which is taken up by the roots and, via the xylem vessels, ... the difference in water potential between the soil and the substomatal cavity caused by transpiration.