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Randalynn Sharp

Chapter 11 Vocabulary

TermDefinition
Frame of reference A system of objects that are not moving with respect to one another.
Relative motion Movement in relation to frame of reference.
Distance The length of a path between two points.
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 took to travel that distance.
Instantaneous speed The rate at which an object's moving at a given moment.
Veloctiy A description of both speed and direction of motion. Velocity is a vector.
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 The displayed data forms straight-line parts.
Nonlinear graph A curve connects the data points that are plotted.
Created by: randalynn.sharp
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