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Flashcards Chapters 1

Inertia A body in motion tends to stay in motion; a body in rest tends to stay in rest
Newton's First Law of Motion An object that is not subject to any outside forces moves at a constant velocity covering equal distances in equal times along a straight-line path
Vector quantity and magnitude Consists of direction and magnitude; Magnitude is the exact quantity
Speed and velocity Speed = distance/time; Velocity = how quickly one's position changes (speed with direction); usually in m/s
Forces Outside influences that cause an object to move (mass x acceleration = kg*m/ sec^2 = Newton)
Acceleration How quickly velocity changes (m/sec^2)
Inertial frame of reference viewpoint of inertial object
Standard unit Units that everyone agrees on, S.I. (meters, meters/second, meters/second^2, Newtons, kilograms)
Newton measurement of Force, mass x acceleration, kg*m/s^2
Grams measurement of mass
Net force Sum of all forces being exerted on an object
Newton's Second Law of Motion The net force exerted on an object is equal to the product of that object's mass times the acceleration (Force = Mass x Acceleration) , the acceleration is in the same direction as the net force
Newton's Third Law of Motion Every action has an equal and opposite reaction
Support forces Forces that push each other along directly on a surface
Normal forces Forces that are directed away from the surface (example, table exerts normal force on notebook)
Energy The capacity to do work
Work The process of transferring energy
Conserve quantity Energy that cannot be created nor destroyed
Kinetic energy Energy contained in object's motion
Potential energy Energy contained between or within objects
Mechanical advantage Process whereby mechanical device redistributes the amount of force and distance that go to performing a specific amount of mechanical work
Created by: vahajuddin