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Key Terms for motion test
EXACTLY what the title says!!!
15
Science
6th Grade
04/22/2008

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Term
Motion
Definition
The change in distance between an object and its reference point
Term
Acceleration
Definition
The rate at which velocity changes;
Vf-Vi/t
Term
Velocity
Definition
Speed in a given direction (10 cm/s NE ward)
Term
Speed
Definition
The distance an object travels per unit of time;
d/t
Term
Slope
Definition
the steepness of a line on a graph, equal to its vertical change divided by its horizontal change
Term
Reference point
Definition
A place or object used for comparison to determine if an object is in motion
Term
Relative Motion
Definition
Movement compared to a specified reference point
Term
Rate
Definition
A measurement of one amount related to another; a unit of distance relative to a unit of time
Term
S.I.
Definition
Scientific units of measure used by scientists throughout the world
Term
Meter
Definition
S.I. unit for distance (length)
Term
Average Speed
Definition
The total distance divided by the total time
Term
Instantaneous Speed
Definition
The speed of an object at a specific point in time
Term
Rise
Definition
The vertical distance between any two points on the line of a graph
Term
Run
Definition
The horizontal difference between any two points on the line of a graph
Term
Constant Acceleration
Definition
A change in velocity by the same amount each section
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