physics vocab ch. 6
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9 Terms
motion diagram
a series of images showing the positions of a moving object taken at regular time intervals
projectile
an object shot through the air
trajectory
an object’s path through space
average velocity
the change in position divided by the time during which the change occurred; the slope of an object’s position-time graph
uniform circular motion
the movement of an object at a constant speed around a circle with a fixed radius
centripetal acceleration
the acceleration of an object on uniform circular motion (aka center-seeking)
centripetal force
the net force toward the center of the circle when an object moves in a circle
resultant
a vector that results from the sum of two other vectors
reference frame
a coordinate system from which motion is viewed
Note 
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