AFOQT (Aviation) Questions With Verified ANSWERS

AFOQT (Aviation) Questions With Verified ANSWERS Newton's First Law of Motion (or inertia) - ANSWER maintains that a body at rest ends to remain at rest, and a body in motion tends to remain in motion (at the same speed and in the same direction) unless it acted upon by an outside force. Nothing in nature starts or stops moving until some outside force causes it to do so. Inertia - ANSWER the property by which an object resists being accelerated in some different way from its current state Newton's Second Law of Motion - ANSWER the equation F=ma, where F is the force acted upon an object, m stands for an objects mass, and a is the object's acceleration. When an object is acted upon by a force, its resulting acceleration is directly proportional to the applied force and inversely proportional to the mass of the object. Force must be applied to overcome the inertia of an object: The greater the mass of an object, the greater the force needed to produce a particular acceleration. Newton's Third Law of Motion - ANSWER For every action there is an equal and opposite reaction. When one object exerts a force on a second object, the second object exerts an equal and opposite force on the first object Universal gravitation - ANSWER Newton. Says that two objects attract each other with a force that is proportional to the product of their masses, and inversely proportional to the square of the distance between them. This attraction is commonly known as gravity. gravity - ANSWER accounts for the weight of an object on earth, and usually measures the pull of the large body (in this case, the Earth) in pounds or kilograms mass - ANSWER a constant that is unaffected by local gravitational conditions weight - ANSWER a function of the planet's gravity at that point. Can vary depending on where you are (ex: earth, the moon, outer space) Four forces that act upon an aircraft in flight - ANSWER 1. Lift 2. Weight (or gravity) 3. Thrust 4. Drag Lift - ANSWER pushes the aircraft up (ie away from the earth;s surface) weight (as a force acting on an aircraft in flight) - ANSWER pulls the aircraft down toward the earth (or, more precisely, toward the Earth's center) thrust - ANSWER pushes the aircraft forward drag - ANSWER tends to slow the aircraft, pushing back on it as it moves forward wings - ANSWER airfoils attached to each side of the fuselage that serve as the main lifting surfaces supporting the airplane in flight. airfoil - ANSWER an aircraft part or surface (such as wing, propeller blade, or rudder) that controls lift, direction, stability, thrust, or propulsion for the aircraft. monoplanes - ANSWER airplanes with one set of wings biplanes - ANSWER airplanes with two sets of wings cantilever wing - ANSWER requires no external bracing, getting its support from internal wing spars, ribs, and stringers, as well as the construction of the wing's skin or covering semi-cantilever wing - ANSWER requires both internal bracing and external support from struts attached to the fuselage ailerons - ANSWER extend from about the middle of the wing out toward the wingtip; they move in opposite directions to create aerodynamic forces that cause the airplane to roll flaps - ANSWER extend outward from near where the wing joins the fuselage (called the wing root) to about the middle of the wing's trailing edge. The flaps are usually flush with the rest of the wing surface when cruising flight; when they are extended, the flaps move downward together to increase the lift of the wing for takeoffs and landings. Most common high lift devices. chord line - ANSWER the distance from the leading edge of the wing to the trailing edge. Cuts the airfoil into an upper surface and a lower surface mean camber line - ANSWER if we plot the points that lie halfway between the upper and lower surfaces, we obtain a curve called the mean camber line. camber - ANSWER the maximum difference between the the mean camber line and the chord line. A measure of the curvature of the airfoil. thickness - ANSWER the maximum difference between the upper and lower surfaces wingtips - ANSWER the ends of the wings wingspan - ANSWER the distance from one wingtip to the other