What are the four fundamental forces of flight?

The four fundamental forces of flight are Lift, Weight, Thrust, and Drag.

Lift is the upward force generated by the wings of the aircraft as they move through the air, counteracting the force of gravity, which is the weight of the aircraft pulling it downward. Thrust is the forward force produced by the aircraft's engines, propelling it through the air. Drag, on the other hand, is the resistance force that acts opposite to the direction of thrust, created by the friction of air molecules against the aircraft as it moves.

These four forces interact with each other and determine the flight dynamics of the aircraft. Understanding how they work together is crucial for pilots and engineers alike in maintaining control and ensuring the efficient operation of the aircraft. Other options, while they include some relevant terms, do not accurately reflect the four primary forces that are essential for flight considerations.