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# Speed and Velocity

### TEK 8.6B

TermDefinition
Kinetic Energy Energy of motion.
Potential Energy Energy that is stored in a system or object.
Energy The ability of a system to do work. Energy is required for changes to happen within a system.
Energy Transformation Change of energy from one form to another.
Motion The change in an objectâ€™s position with respect to time and in comparison to the position of other objects used as reference points
Speed The rate of change of position (or distance traveled) with respect to time; units in which speed is measured are expressed as distance per time (example: meters per second).
Velocity Measurement of speed and direction of an object.
Acceleration The rate of change in an object's speed.
Frame of Reference A system that uses axes or background objects to measure the position or movement of an object.
Total Energy All energy, potential and kinetic, within a specific system.
Joule A unit used to measure energy.
Created by: Ms.Crenshaw

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