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Frame of reference
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Displacement
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Physics 1D motion

Velocity, Displacement, Acceleration, Free Fall

QuestionAnswer
Frame of reference an object which is used to measure changes in position
Displacement change in position from the starting point
Velocity the measure of rate of movement of an object. Includes direction of motion.
Average Velocity total displacement divided by total time. (includes direction)
Average Speed distance traveled divided by total time. (does not include direction)
Slope rise over run on a graph. Divide the change in the y coordinates by the change in the x coordinates
Instantaneous Velocity velocity of an object at a certain moment in time.
Instantaneous Speed the number given to you by your car’s speedometer.
Acceleration Rate at which velocity changes over time. Can be positive or negative. It is determined by a change in speed, direction, or both.
Free Fall Motion of a body when the only force acting on it is gravity.
Air Resistance Friction created by air that slows the acceleration of an object in free fall.
Terminal Velocity The constant speed an object reaches when falling through a medium. It does depend on mass, shape, and size.
Created by: cjones13
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