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Flight Vocab 8th Gr

TermDefinition
Force of gravity the force that exists between all objects which tend to attract them.
Mass the quantity of matter in an object.
Surface area the total area that is the surface of an object.
Drag force created by the collision of fluid molecules with an object, and acts in the opposite direction of motion.
Lift force created by the flow of fluid molecules around an object, and acts perpendicular to the direction of motion.
Thrust force a propulsive force created by a fluid on an object due to the force applied by the object on the fluid.
Chemical potential energy energy stored in chemical bonds.
Gravitational potential energy energy possessed by an object due to its height above the ground.
Kinetic energy energy possessed by an object due to its motion.
Ornithopter a mechanical bird model that uses strain energy (potential energy) in order to generate thrust and forward motion.
Created by: ireneott
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