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ASSIGNMENT SHEET 2-1-3: BASIC THEORY REVIEW

Description

This lesson is a basic introduction to the theory of aerodynamics. It provides a knowledge base in aerodynamic mathematics, air properties, airspeed and altitude definitions and measurements, airfoil and wing design, and the importance of center of gravity (CG).
Justin Vaughan
Quiz by Justin Vaughan, updated more than 1 year ago
Justin Vaughan
Created by Justin Vaughan about 9 years ago
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Resource summary

Question 1

Question
A moment is ______.
Answer
  • the force with which a mass is attracted toward the center of the earth
  • the result of mass x acceleration
  • a body’s capacity to do work
  • created when a force is applied at some distance from an axis or fulcrum, producing rotation about that point

Question 2

Question
Mass per unit of volume defines which of the following?
Answer
  • Work
  • Play
  • Density
  • Power

Question 3

Question
Potential energy is ______.
Answer
  • the ability of a body to do work due to its motion
  • dependent on mass and velocity
  • a scalar measure of a body’s capacity to do work
  • the ability of a body to do work due to its position or state of being

Question 4

Question
The Law of Interaction states ______.
Answer
  • “For every action there is an equal and opposite reaction.”
  • “A body at rest tends to stay at rest.”
  • “Two opposite forces cannot interact.”
  • “An unbalanced force acting upon a body produces an acceleration in the direction of the force that is directly proportional to the force and inversely proportional to the mass of the body.”

Question 5

Question
True airspeed will be ______ indicated airspeed at 10,000 feet MSL.
Answer
  • less than
  • equal to
  • greater than
  • not enough information to determine

Question 6

Question
The chord of an airfoil is defined as ______.
Answer
  • the angle between the longitudinal axis and the horizon
  • a measure of the wing along the chordline, from the leading edge to the trailing edge
  • an infinitely long line drawn through the leading and trailing edges of an airfoil
  • the length of a wing

Question 7

Question
Air density is _____ at 10,000 feet compared to ______ feet.
Answer
  • lower/5000
  • equal/5000
  • equal/20,000
  • lower/20,000

Question 8

Question
The altimeter setting for standard day where pressure altitude equals true altitude is ______in-Hg.
Answer
  • 29.92
  • 92.29
  • 92.92
  • 1013.2

Question 9

Question
The center of gravity is the point at which ______.
Answer
  • lift is generated
  • all aerodynamic forces are concentrated
  • elevator authority is lost
  • all weight is concentrated

Question 10

Question
The ______ axis is which the aircraft nose moves left or right about the center of gravity.
Answer
  • center
  • yaw
  • pitch
  • roll
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