How is lift generated?

How is lift generated?

• A. By increasing thrust to push air downward
• B. By faster airflow over the wing creating lift
• C. By gravity pulling the wing upward
• D. By engine noise

Answer: (B)

Lift comes from how the wing changes the airflow as the plane moves forward. The wing’s curved top and its angle of attack make air speed up over the top surface and stay relatively slower underneath. This faster flow over the top lowers the pressure there, while the higher pressure underneath pushes the wing upward. The wing also deflects air downward, and by Newton’s third law this downward push helps produce the upward lift. So the best description is that faster airflow over the wing creates lift, driven by the pressure difference and the wing’s shape. Thrusters or engine noise don’t generate lift by themselves, and gravity isn’t what lifts the wing.

Lift comes from how the wing changes the airflow as the plane moves forward. The wing’s curved top and its angle of attack make air speed up over the top surface and stay relatively slower underneath. This faster flow over the top lowers the pressure there, while the higher pressure underneath pushes the wing upward. The wing also deflects air downward, and by Newton’s third law this downward push helps produce the upward lift. So the best description is that faster airflow over the wing creates lift, driven by the pressure difference and the wing’s shape. Thrusters or engine noise don’t generate lift by themselves, and gravity isn’t what lifts the wing.