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# Chapter 11 Vocab

TermDefinition
Frame of Reference A system of objects that are not with respect to one another
Relative Motion Movement in relation to a frame of reference
Distance The length of a path between two points
Displacement the direction from the starting point and the length of a straight line from the starting point to the ending point
Vector A quantity that has magnitude and direction
Resultant Vector The vector sum of two or more vectors
Speed The ratio of the distance an object moves to the amount of time the object moves
Average Speed the total distance traveled divided by the time it takes to travel that distance
Instantaneous Speed The rate at which an object is moving at a given moment in time
Velocity The speed and direction in which an object is moving
Acceleration The rate at which velocity changes
Free Fall The movement of an object toward Earth solely because of gravity
Constant Acceleration A steady change in velocity
Linear Graph A graph in which the displayed data form a straight line
Nonlinear Graph A graph in which the displayed data form a curved line
Created by: Quinton.carter