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Chpt M1 Vocab Review
all vocab of chapter 1, Book M
Term | Definition |
---|---|
Motion | The state in which one objects distance from another is changing. |
Reference Point | A place or object used for comparison to determine if an object is moving. |
International System of Units | A system of measurement based on multiples of ten and on established measures of mass, length and time. |
Meter | The basic SI unit of length. |
Speed | The distance an object travels per unit of time. |
Average Speed | The overall rate of speed at which an object moves. |
Instantaneous Speed | The speed of an object at one instant of time. |
Velocity | Speed in a given direction. |
Slope | The steepness of a line on a graph. |
Plate | One of the major pieces that make up Earth’s upper layer. |
Theory of Plate Tectonics | The theory that pieces of Earth’s outer layer are in constant motion. |
Acceleration | The rate at which velocity changes. |