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# Chapter 1.1~1.3

### Speed, Acceleration and Forces

TermDefinition
Distance The length of the path between two points
Energy The ability to do work or cause change
Motion The state in which one object's distance from another is changing
Speed A measurement that describes any object in motion (Distance/Time)
Instantaneous Speed The speed of an object at one instant of time
Average Speed The overall rate of speed at which an object moves (Total Distance/Total Time)
Velocity Speed in a given direction
Slope The steepness of a graph line (Rise/Run)
Acceleration The rate at which the velocity changes
Force A push or pull
Newton The strength of a force
Net Force The combination of all the forces on an object
Unbalanced Force When a net force acts on an object causing motion
Balanced Force Equal forces acting on an object in opposite directions
Potential Energy Stored energy that results from the position of an object
Kinetic Energy Motion of an object
Created by: Bmacyscience

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