AS200 AFJROTC Fall Semester: Lesson 1- The Principles of Flight Checkpoint Questions

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What is aerodynamics?

The way objects move through air.

In what year was the first manned ballooned flight?

1783

Why does changing the angle of attack increase or decrease the lifting force?

Answers may vary. Possible Answers- 1. The way wind hits the airfoil changes, changing the lifting force. 2. The nose's pitch will determine the angle of attack, determining the lifting force.

At about how many degrees does a plane reach its critical angle of attack?

Around 15 degrees

What does F=ma mean?

Force=mass x acceleration

What is an example of aviation of Newton's third law in motion?

Jet Propulsion

What is another name for Newton's first law?

Law of Inertia

Which edge of an airfoil is rounded? Which is sharp?

Leading edge- rounded; Trailing edge- sharp

Why does an airfoil's shape create a lifting force?

The airflow over the curved surface of the wing speeds up, reducing the pressure above the wing and produces the upward lifting force.

What did the Wright brothers discover using a wind tunnel?

The airfoil shape that produced the most lifting force.

The speed of relative wind depends on the aircraft's speed and what else?

Wing Shape


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