Data

Copy and paste the text below. It is read-only. Select All

average speed how fast an object is moving, the absolute value of the slope of an object's position-time graph average velocity the change in position, divided by the time during which the change occurred; is the slope of an object's position-time graph coordinate system a system used to describe motion that gives the zero point location of the variable being studies and the direction in which the values of the variable increase displacement a change in position having both magnitude and direction; is equal to the final position minus the initial position distance a scalar quantity that describes how far an object is from the origin instantaneous position the position of an object at any particular instant in time instantaneous velocity a measure of motion that tells the speed and direction of an object at a specific instant in time magnitude a measure of size motion diagram a series of images showing the positions of a moving object taken at regular (equal) time intervals origin a point at which both variables in a coordinate system have the value zero particle model a simplified version of a motion diagram in which the moving object is replaced by a series of single points position the separation between an object and the origin; it can be either positive or negative position-time graph a graph that can be used to determine an object's velocity resultant a vector that results from the sum of two other vectors; it always points from the first vector's tail to the last vector's tip scalar quantities, such as temperature or distance, that are just numbers without any direction time interval the difference between two times vector quantities, such as position, that have both magnitude and direction