# ASSIGNMENT SHEET 2-1-3: BASIC THEORY REVIEW

Quiz by Justin Vaughan, updated more than 1 year ago
 Created by Justin Vaughan almost 5 years ago
10
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### 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).

## Resource summary

### Question 1

Question
A moment is ______.
• 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?
• Work
• Play
• Density
• Power

### Question 3

Question
Potential energy is ______.
• 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 ______.
• “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.
• less than
• equal to
• greater than
• not enough information to determine

### Question 6

Question
The chord of an airfoil is defined as ______.
• 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.
• 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.
• 29.92
• 92.29
• 92.92
• 1013.2

### Question 9

Question
The center of gravity is the point at which ______.
• 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.
• center
• yaw
• pitch
• roll

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