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PS Ch.9.1
9.1
Term | Definition |
---|---|
Motion | the state in which one object’s distance from another is changing |
Reference point | A place or object used for comparison to describe the position or motion of a person or object |
Distance | the length of a path between two points |
Displacement | the length of a straight line between starting and ending points |
Vector | A measureable quantity that consists of both a magnitude and a direction |