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45 Cards in this Set

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Aerospace Education
branch of general education concerned with communicating knowledge, skills and attitudes about aerospace activities and the total impact of air and space vehicles upon society
Aerodynamics
relating to the forces of air in motion
Aeronautics
the science of flight within the atmosphere
Air
a mixture of gases that contain approximately 79% nitrogen, 19% oxygen and 2% other gases
Aircraft
any machine that is capable of flying through the air; ex. ultralights, airplanes, gliders, balloons and helicopters
Airplane
an aircraft that is kept aloft by the aerodynamic forces upon its wings and is thrust forward by a propeller, or other means of propulsion, such as a jet or rocket
Airfoil
a component, such as a wing, that is specifically designed to produce lift, thrust or directional stability
Altitude
height expressed in units above sea level, or ground level
Camber
the curved part of an airfoil that goes from the leading to the trailing edge
Chord
a line drawn through an airfoil from its leading to its trailing edge
Drag
a force which retards the forward movement of an aircraft in flight
Dynamic
forces in motion
Leading edge
the front part of an airfoil
Relative wind
the flow of air which moves opposite the flight path of an airplane
Thrust
the force which moves an aircraft forward in flight
Trailing Edge
the back part of an airfoil
Static
standing still, or without motion
Wind
air in motion
That axis which passes through an airplane from nose to tail?
Longitudinal
That axis which passes through an airplane from top to bottom?
Vertical
That axis which passes through an airplane from wingtip to wingtip?
Lateral
Movement around the Longitudinal axis is called?
Roll
Movement around the Vertical axis is called?
Yaw
Movement around the Lateral axis is called?
Pitch
The point where all three axis come together is called?
Center of Gravity
The elevator causes the nose to ________ up and down.
Pitch
The ailerons cause the aircraft to ______ about its logitudinal axis.
Roll
The ________ causes the aircraft to yaw about its vertical axis.
Rudder
When one aileron moves down, the other ______ ______.
moves, upwards
A propeller is actually a wing lifting __________.
forward
The "wing" of a propeller is called the _________.
blade
The two natural forces acting upon an airplane in flight are:
Gravity and Drag
The two artificial forces acting upon an airplane in flight are:
Thurst and Lift
When a wing is angled upward, this is called "increasing the ______ of _______.
angle of attack
The tip of a propeller achieves most of its "lift" because of greater ______.
Speed
What is that point at which a wing will stall?
Crital angle of attack
The word "burble" means turbulent, tumbling air. This occurs over the top of a wing during a ________.
Stall
The curvature, or camber, on the upper surface of a bird's wing, is an example of what kind of "lift". (Bernoulli or Newton's)
Bernoulli
As a fluid, like air, is accelerated, the _________ drops. This is an example of __________ Law.
Pressure, Bernoulli
As the air flows over the top of a wing, it is accelerated. What happens to the pressure?
It decreases or drops
A bird is a living ________ machine.
Flying
Who is credited for inventing the flying device, balloon?
The Montgolfier Brothers
If the air is dead calm at an airport, can airplanes still fly?
Yes
There is a line between the leading and trailing edges of a wing. What is it called?
Chord
As air passes under a wing, a certain amount of lift is generated. This is an example of __________ Law.
Newton's