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Chpt M1 Vocab Review

all vocab of chapter 1, Book M

TermDefinition
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.
Created by: nmehlhaff