Aeronautics Review Crossword

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Across
  1. 4. A gas or liquid that tends to take the shape of its container.
  2. 5. 760 MPH. When a plane travels faster than this speed, it is breaking the sound barrier.
  3. 7. The rear edge of a wing.
  4. 9. A measure of the curvature of the airfoil.
  5. 14. As the speed of a fluid increases, its pressure decreases.
  6. 16. The acute angle between the direction of the relative wind and the chord of an airfoil.
  7. 17. Transferring of energy to an object, typically by pushing or pulling on that object.
  8. 20. For every action there is an equal and opposition reaction.
  9. 24. The quantity of matter, which a material contains.
  10. 25. An airplane with no attached source of thrust.
  11. 26. Device used to destroy lift. Found on top of the wing and in varying sizes.
  12. 27. The up or down movement of an aircraft.
  13. 28. The relationship among an object’s mass (m), acceleration (a), and an applied force (F), is Force equals mass times acceleration (F= ma).
  14. 31. Relates to speed five or more times that of sound in air.
Down
  1. 1. The rate of change of velocity with respect to time.
  2. 2. A controlling surface on an aircraft’s tail that regulates yaw.
  3. 3. An airfoil mounted on a revolving shaft. It creates low pressure in front of it, thereby moving an aircraft forward because of the high pressure area behind the propeller.
  4. 6. A part or surface, such as a wing, propeller blade, or rudder, whose shape and orientation control stability, direction, lift, thrust, or propulsion.
  5. 8. The front, usually rounded, edge of an airplane wing or airfoil.
  6. 10. The clockwise or counterclockwise rotating motion of an aircraft.
  7. 11. Objects at rest stay at rest and objects in motion stay in motion unless an external force is applied. It is known as the law of inertia.
  8. 12. Resistance of the air (technically a fluid) against the forward movement of an airplane.
  9. 13. A vector quantity that includes the speed and direction of an object.
  10. 15. The tail assembly of an aircraft, including the horizontal and vertical stabilizers, elevators, and rudder.
  11. 18. A side-to-side motion of the nose of the aircraft.
  12. 19. The central body of an aircraft where wings and stabilizers are attached.
  13. 21. A force applied to a body to propel it in a desired direction. The force which moves an aircraft through the air.
  14. 22. The major horizontal surface on an airplane that provides lift.
  15. 23. The force that attracts a body toward the center of the earth or toward any other physical body having mass.
  16. 29. The force generated by the gravitational attraction of the earth on the airplane. Lift must be equal to weight in order to sustain flight.
  17. 30. The force that directly opposes the weight of an airplane and holds the airplane in the air.
  18. 32. The controlling surface that regulates an aircraft’s pitch.
  19. 33. The width of an airfoil or wing.