Hang Gliding

1. What three forces are acting on a hang glider when it flies? ____________________, _____________________, & ______________

2. In order for a hang glider to fly, which statement must be true?

A) The force of lift must be greater than the force of gravity; B) The force of gravity must be greater than the force of lift.

3. The balance between lift, drag, and gravity determines what? ____________________________________________________________________________________________________________________________ 4. Air flowing over the wind creates what force?

___________________________________________________________ 5. Besides air flowing over the wing, what other ways can lift be created?

________________________________________________________________________________________________________________________________

6. Drag is created by what? ____________________________________________________________________________________________________________________________ 7. A soaring hang glider has:

A) Only kinetic energy; B) Only potential energy; C) Both kinetic and potential energy.

8. How can watching birds help pilots decide where are good places to fly?

___________________________________________________________

9. What kind of rising air tends to occur over places that take in plenty of

sunlight, like sand or pavement. ________________________________________________________________

10. In order to land safely, the pilot must stall the glider by tipping the wing up.

Which of the three forces are affected by tipping the wing up, and how are they affected?

______________________________________________________________