Aerodynamics

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Across
  1. 2. the force of Earth's gravity acting on the paper plane. (6)
  2. 5. Lift and drag that works slower than the speed of sound. (8,5)
  3. 7. is the way air moves around solid objects. (12)
  4. 10. The relationship between pressure and speed is called (9,9)
  5. 11. This helps to overcome gravity (4)
  6. 12. A push forward (6)
Down
  1. 1. Helicopter wings (5,6)
  2. 3. Uphill backward force (8,10)
  3. 4. Something that pushes or pulls on something else is called ________. (5)
  4. 6. This helps prevent the high pressure air from wrapping around the wingtip as a result it increases wing’s efficiency. (8)
  5. 8. Sometimes it can be called as air resistance. (4)
  6. 9. Wings are curved on top and flatter on the bottom. This shape is called an ___________. (7)