| A | B |
|---|
| fluid | any material that can flow and that takes the shape of its container |
| pressure | the amount of force exerted on a given area; expressed in pascals (Pa) |
| atmospheric pressure | the pressure caused by the weight of the atmosphere |
| density | the amount of matter in a given space; mass per unit volume |
| hydraulic device | a device that uses liquids to transmit pressure from one point to another |
| Archimedes' principle | the principle that states that the buoyant force on an object in a fluid is an upward force equal to the weight of the volume of fluid that the object displaces |
| buoyant force | the upward force that fluids exert on all matter, buoyant force opposes gravitational force |
| Bernoulli's principle | the principle that states that as the speed of a moving fluid increases, its pressure decreases |
| lift | an upward force on an object (such as a wing) that opposes the downward pull of gravity; differences in pressure above and below the object contribute to lift |
| thrust | the forward force produced by an airplane's engines; thrust opposes drag |
| drag | the force that opposes or restricts motion in a fluid; drag opposes thrust |
| turbulence | an irregular or unpredictable flow of fluids that can cause drag; lift is often reduced by turbulence |
| gravity | the downward pull on the plane which must be overcome |
| design | to create a plan or blue print to build something |
| net force | overall force acting on an object |
| speed | a certain amount of distance in a certain amount of time |
| pitch | to nose of the plane moves up or down |
| yaw | side to side motion of the nose of the plane |
| climb | to move higher in altitude |
| altitude | height about sealevel |
| flaps | on the back edge of the wing, they increase lift of the plane |
| glider | an airplane with no attached method of thrust |
| cochroaches | have been around for millions of years |
| flour beetles | the other bug that was tested with radiation |
| cobalt 06 | a source of nuclear radiation |
| 1000, 10,000 or 100,000 rads of radiation | will kill a human |
| fruit flies | another smaller insect that was tested |
