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# Vocab Ch6

Inversely When two values change in opposite directions, so that if one increases the othe decreases.
Newton's second Law The acceleration produced by a net force on a body is directly proportional to the magnitude of the net force, is in the same direction as the net force, and is inversely proportional to the mass of the body.
Fluid Anything that flows; in particular, anyh liquid or gas.
Air Resistance friction or drag, that acts on something moving through air.
Free-body Diagram A diagram showing all the forces acting on an object.
Pressure Force per unit of surface area where the force is perpendicular to the surfaces of a lens.
Pascal The SI unit of pressure. One pascal (Pa) of pressure exerts a normal force of one newton per square meter.
Terminal Speed The speed at which the acceleration of a falling object is zero because friction balances the weight.
Terminal Velocity Terminal speed together with the direction of motion.
Created by: elmo45

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