AE101 Flashcards
What is done when a force acts upon a body and moves it?
Work (work equals Force times Distance)
Which of Newton’s Laws state that “a body at rest tends to remain at rest and a body in motion tends
to remain in motion … unless acted upon by some unbalanced force?”
Newton’s first law of equilibrium
What is the measurement of the average kinetic energy of air particles called?
Temperature
True or false. Dynamic pressure is the measurement of force that molecules exert on each other in a still fluid.
False, that is the definition of static pressure
If the right side of cross-sectional area of a streamtube is decreased the velocity of the mass flow at that point will what?
Increase
A higher than standard day density altitude will cause the takeoff roll to be what?
Longer, due to decrease in performance
True or false. Groundspeed is indicated airspeed corrected for winds.
False, ground speed is true airspeed corrected for winds
What happens t true Airspeed (TAS) as you climb in altitude for a constant indicated airspeed (IAS)?
TAS increases
The apparent motion of the air with respect to the motion of the aircraft is defined as?
The relative wind. Relative wind is opposite flight path
The angle of attack (AOA) is defined as what?
The angle between the relative wind and the chordline of the airfoil
What is a benefit of a tapered wing?
Structural stiffness
Which aircraft would have a higher aspect ratio?
a. Glider
b. Fighter aircraft
c. Bomber aircraft
d. Balloon
Glider
Having a CG that is too far aft causes the aircraft to exhibit what behavior?
A tendency to pitch up into a stall
What is the name of the point from which movements in roll, yaw, and pitch axes are measured.
Center of gravity
The axis about which the airplane’s nose moves up and down is called what?
The lateral or pitch axis
How is moment created?
Moment is created when a force is applied at some distance from an axis or fulcrum, producing rotation about that point
Mass per unit of volume defines what?
Density
What is potential energy?
The ability of a body to do work due to its position or state of being
The Law of Interaction states what?
“For every action there is an equal and opposite reaction.”
What will happen to true airspeed compared to indicated airspeed at 10,000 feet altitude?
It will be greater than the indicated airspeed due to the lower density
What is the chord of an airfoil is defined as?
A measure of the wing along the chordline, from the leading edge to the trailing edge
What happens to air density at 10,000 feet compared to at 5000 feet.
Lower
What does mass/volume represent?
Density
What is the altimeter setting for standard day where pressure altitude equals true altitude?
29.92/1013
What is the name of the point at which all weight is concentrated?
Center of gravity
Which axis controls the aircraft nose moves left or right about the center of gravity?
Yaw axis
