Flight and Space

3. The curvature of the airfoil.
4. A gas or liquid that tends to take the shape of its container.
6. An aircraft similar to an airplane that has no engine
9. Up and down motion of the wings of the aircraft.
11. The force that makes it difficult for one object to slide along the surface of another or to move through a liquid or gas.
12. A streamlined surface designed in such a way that air flowing around it produces useful motion.
13. A side-to-side motion of the nose of the aircraft.
16. A systematic, problem-solving strategy that designers follow to come up with a solution to a problem.
18. The main body of an aircraft.
20. The hinged part of the stabilizer on an aircraft that is used to deflect the tail of the plane up and down.

1. Forces that are directed opposite each other and are not equal in magnitude.
2. Small moving section at the rear of the stabilizer that helps to control the yawing motion of the aircraft.
4. A push or pull on an object.
5. The rate at which an object speeds up, slows down, or changes direction.
7. The method of determining one’s position and planning and following a route.
8. A working model used to test a design concept by making observations and necessary adjustments.
10. The part on an airplane that raises and lowers the wings, causing the aircraft to roll.
14. The amount of matter in an object. Not to be confused with weight, which is the amount of force that gravity exerts on an object.
15. The up or down motion of the nose of the aircraft.
17. A person who operates the flying controls of an aircraft.
19. The force that attracts a body toward the center of the earth or toward any other physical body having mass.