| A | B |
|---|
| The state in which one object's distance from another is changing. | motion |
| A place or object used for comparison to determine if an object is in motion. | reference point |
| The distance an object travels in one unit of time. | speed |
| Speed in a given direction. | velocity |
| The steepness, or slant of a line on a graph. | slope |
| The rate at which velocity changes. | acceleration |
| One of the major pieces that make up Earth's upper layer p. 296 | plate |
| Term used to describe a relationship between variables whose graph is a straight line p. 306 | linear |
| Term used to describe a relationship between variables whose graph is not a straight line p. 306 | nonlinear |
| Base unit of length in the System International | meter |
