Energy- Flight

2. a theory that explains how an aircraft uses its wings to achieve lift
5. the upward force exerted by a fluid that opposes the weight of an object submerged in it
6. a traditional, ancient tool for catching fish
9. the angle a wing makes with oncoming air flow
11. a traditional technology that is a handheld projectile launcher with a Y-shaped frame, elastic bands, and a pouch
12. a force generated by solid objects moving through a fluid

1. the force oBernoulli'shat acts in a downward direction
2. a traditional technology that was originally made for hunting; it is now used for archery
3. invisible gas that surrounds the earth
4. a name for objects that have a certain shape that reduces drag from air moving past
7. any substance that flows
8. unwanted force that forces the engine to work harder
10. a force that propels the plane forward