AOPA Aerodynamics Questions and
Answers | Latest Update | 2024/2025 |
Graded A+
What is the definition of lift?
Lift is the upward force generated by the wings of an aircraft as air flows over them,
allowing the plane to rise.
What is drag in aerodynamics?
Drag is the resistance an...
AOPA Aerodynamics Questions and
Answers | Latest Update | 2024/2025 |
Graded A+
What is the definition of lift?
✔✔ Lift is the upward force generated by the wings of an aircraft as air flows over them,
allowing the plane to rise.
What is drag in aerodynamics?
✔✔ Drag is the resistance an aircraft experiences as it moves through the air, opposing forward
motion.
What is thrust?
✔✔ Thrust is the forward force produced by an aircraft's engine that propels the airplane through
the air.
Explain what weight means in terms of flight.
✔✔ Weight is the force of gravity pulling the aircraft toward the Earth, counteracting lift.
1
,What is the angle of attack?
✔✔ The angle of attack is the angle between the wing's chord line and the relative airflow.
What happens when the angle of attack exceeds the critical angle?
✔✔ When the angle of attack exceeds the critical angle, the aircraft stalls, causing a loss of lift.
What is a stall?
✔✔ A stall occurs when the airflow over the wings is disrupted, leading to a rapid decrease in
lift.
What is induced drag?
✔✔ Induced drag is the drag created as a byproduct of lift, typically increasing with the angle of
attack.
What is parasitic drag?
✔✔ Parasitic drag is the resistance caused by the aircraft's shape, surface roughness, and external
components as it moves through the air.
2
, What factors affect lift generation?
✔✔ Lift is affected by airspeed, air density, the shape of the wings, and the angle of attack.
What is the purpose of flaps on an airplane?
✔✔ Flaps are used to increase lift and drag during takeoff and landing, allowing the aircraft to
fly at slower speeds.
What is the effect of ground effect on an aircraft?
✔✔ Ground effect reduces drag and increases lift when an aircraft is close to the ground during
takeoff or landing.
How does altitude affect air density?
✔✔ As altitude increases, air density decreases, reducing lift and engine performance.
What is the difference between true airspeed and indicated airspeed?
✔✔ True airspeed is the aircraft's actual speed through the air, while indicated airspeed is the
speed shown on the airspeed indicator, adjusted for atmospheric conditions.
3
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