Which principle helps explain how lift is generated on an aircraft wing?

Which principle helps explain how lift is generated on an aircraft wing?

• A. Newton's third law of motion
• B. Archimedes' principle
• C. Bernoulli's principle
• D. Pascal's law

Answer: (C)

Lift generation on an aircraft wing can be primarily explained by Bernoulli's principle, which states that as the speed of a fluid increases, its pressure decreases. In the context of an aircraft wing, the wing's shape is designed so that air travels faster over the top surface than underneath it. This difference in airspeed creates a pressure differential, with lower pressure above the wing and higher pressure beneath it. The result of this pressure difference is an upward force known as lift, which allows the aircraft to rise and be sustained in flight. While Newton's third law of motion also relates to lift by explaining that every action has an equal and opposite reaction, it doesn't specifically address the fluid dynamics at play in lift generation as precisely as Bernoulli's principle does in this context. Archimedes' principle relates to buoyancy in fluids and is not applicable to aerodynamic lift on wings. Pascal's law deals with pressure in confined fluids and does not directly explain the mechanisms of lift generation on a wing.

Lift generation on an aircraft wing can be primarily explained by Bernoulli's principle, which states that as the speed of a fluid increases, its pressure decreases. In the context of an aircraft wing, the wing's shape is designed so that air travels faster over the top surface than underneath it. This difference in airspeed creates a pressure differential, with lower pressure above the wing and higher pressure beneath it. The result of this pressure difference is an upward force known as lift, which allows the aircraft to rise and be sustained in flight.

While Newton's third law of motion also relates to lift by explaining that every action has an equal and opposite reaction, it doesn't specifically address the fluid dynamics at play in lift generation as precisely as Bernoulli's principle does in this context. Archimedes' principle relates to buoyancy in fluids and is not applicable to aerodynamic lift on wings. Pascal's law deals with pressure in confined fluids and does not directly explain the mechanisms of lift generation on a wing.