KIDS QUIZ
SCIENCE EXPERIMENTS
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Upward Direction
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All Directions
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Only on the sides
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Downward Direction
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Detailed explanation-1: -In the atmosphere, air pressure can be exerted in all directions. In the International Space Station, the density of the air is maintained so that it is similar to the density at the earth’s surface. Therefore, the air pressure is the same in the space station as the earth’s surface (14.7 pounds per square inch).
Detailed explanation-2: -The air around you has weight, and it presses against everything it touches. That pressure is called atmospheric pressure, or air pressure. It is the force exerted on a surface by the air above it as gravity pulls it to Earth. Atmospheric pressure is commonly measured with a barometer.
Detailed explanation-3: -Atmospheric pressure is caused by the weight of air molecules above the atmosphere. The layer of air exerts a force on the surface of the earth. The force per unit area, by the atmosphere, on the surface of any object on the earth is called atmospheric pressure. At the sea level this pressure is equal to 101325 Nm-2.
Detailed explanation-4: -Notes: The atmospheric pressure at the surface of the Earth is due to gravitational pull of the earth and is about 14.7 psi. That means that the weight of a column of air which has a cross section of 1 square inch and which stretches from the surface of the Earth to space is 14.7 pounds.