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# Science 7

### Force and motion; calculating speed; graphing motion

TermDefinition
Force A push or a pull on an object
Motion A process of changing position.
Balanced forces Are two forces acting in opposite directions on an object, with a net force of 0 Newtons.
Unbalanced forces The net force of an object is not 0.
Force diagram A diagram showing all the forces acting on an object, the force's direction and its magnitude.
Position An object's distance and direction from a reference point.
Direction The path on which something is moving or pointing.
Speed The distance an object moves divided by the time it takes to move that distance.
Average speed The speed over an entire distance; average speed is equal to the total distance traveled divided by the total time.
Distance The amount of space between two points.
Velocity The speed AND direction of a moving object.
Displacement The difference between the initial, or starting , position and final position.
Time The thing that is measured as seconds, minutes, hours, days, years, and months etc.
Unit rate Rates expressed as a quantity of 1; 1 mm
Conversion factor Converting one set of units into an equivalent expressed in another.
Graphs A way to analyze the relationship between two sets of numbers.
Distance time graph A graph that shows how distance and time are related.
Speed time graph A graph that shows the speed of an object on the y-axis and time on the x-axis. It shows how the speed of an object changes during each interval of time.
Created by: Cchavez77