Air pressure can be thought of as?*1 pointThe weight of the air on the earth's surfaceThe weight of the earth on the atmosphere
Question
Air pressure can be thought of as?
1 point
- The weight of the air on the earth's surface
- The weight of the earth on the atmosphere
Solution
Air pressure can be conceptualized as the weight of the air on the Earth's surface. This is because air consists of numerous molecules that exert force due to their mass and gravitational pull. As these molecules collide with surfaces, they exert pressure; therefore, the accumulated weight of all the air molecules above us contributes to atmospheric pressure.
In contrast, the notion of "the weight of the earth on the atmosphere" is misleading, as it suggests that the solid Earth exerts pressure downward onto the atmosphere, which isn't how air pressure works. Rather, it is the gravitational force acting on the air molecules that leads to air pressure being felt at the surface.
In summary, air pressure is fundamentally the result of the weight of the air above us, making "The weight of the air on the earth's surface" the correct choice.
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