Science Flashcards
the state in which one object’s distance from another is changing
motion
a place or object used for comparison to determine if an objects is in motion
reference point
a system of measurement based on multiples of ten
international system of units
the basic SI unit of length
meter
the distance an object travels per unit of time
speed
The overall rate of speed at which an object moves is calculated by dividing the total distance an object traveled by the total time.
average speed
The speed of an object at one instant of time
instantaneous speed
Speed in a given direction
velocity
The steepness of a line on a graph equal to its vertical change divided by its horizontal change
slope
One of the major pieces that make up earth’s upper layer
plate
Theory of plate tectonics
The theory that pieces of earth’s outer layer are in constant motion
The rate at which velocity changes
Acceleration
