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A group of reference objects whose placement can be compared to each other to determine motion
Frame of Reference
the length of a straight line from the starting point to the ending point in a particular direction
Displacement
A measure of how long it takes an object to get from one place to another. Taking into account distance and time
Speed
A graph that uses line segments to show changes that occur over time
Line Graph
A graph with distance on the vertical axis and time on the horizontal axis
Distance-Time Graph
the length of a straight line from the starting point to the ending point
Distance
the horizontal number line in a coordinate plane
x-axis
the vertical axis on a coordinate plane
y-axis
the object being observed is motionless
horizontal line on distance/time graph
the steepness of a line on a graph, equal to its vertical change divided by its horizontal change
slope
a description of a segment of measurement (distance, weight, time, etc.)
unit of measurement
The size, length, or amount of something, as established by measuring
Measurement
The distance an object travels per unit of time
Speed
a push or pull that changes the speed or direction of a moving object
force
The overall force on an object when all the individual forces acting on it are added together
net force
occurs when the net force is zero and there is no change in the objects motion
balanced forces
