Flight and Space #1

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Across
  1. 2. a search for something that is very much desired. it is often difficult and important
  2. 5. a working model of a design used to test ideas and solve problems
  3. 7. the size or quantity of something.
  4. 11. the force that directly opposes the weight of an aircraft and holds the aircraft in the air
  5. 12. the force of gravity pulling an object toward the center of the earth.
  6. 13. forces forces that are not equal in magnitude and are in opposite directions.
  7. 15. to drive, or cause to move, forward.
  8. 16. up and down motion of the wings of the aircraft.
Down
  1. 1. a particular type or style of a product
  2. 3. a force applied to a body to propel it in a desired direction.
  3. 4. a push or pull on an object.
  4. 6. the resistance that slows an object moving through air.
  5. 8. to make or draw plans for.
  6. 9. a side-to-side motion of the nose of the aircraft.
  7. 10. the up or down motion of the nose of the aircraft.
  8. 14. a small flap on the wings that helps the plane tilt left or right.