Comprehension Passage
Pressure is a physical quantity expressing the force applied perpendicular to the surface of an object per unit area. It is commonly measured in units such as pascals (Pa) or pounds per square inch (psi). Pressure is crucial in various fields, including meteorology, engineering, and physics, affecting phenomena like weather patterns, the structural integrity of buildings, and the behavior of gases and fluids. It fundamentally describes how forces distribute over surfaces.
What happens to the pressure when an airplane is moving fast?
1
The pressure below and above the wing is the same.
2
The pressure above the wing is more than the pressure below the wing.
3
The pressure below the wing is more than the pressure above the wing.
4
The pressure above and below the wing increases.