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Physical Science Chapter 11 - Motion

Physical Science Concepts in Action

AB
frame of referencea system of objects that are not moving with respect to one another
relative motionmovement in relation to a frame of reference
distancethe length of a path between two points
vectora quantity that has magnitude and direction
resultant vectorthe vector sum of two or more vectors
speedthe ratio of the distance an object moves to the amount of time the object moves
average speedthe total distance traveled divided by the time it takes to travel that distance
instantaneous speedthe rate at which an object is moving at a given moment in time
velocitythe speed and direction in which an object is moving
accelerationthe rate at which velocity changes
free fallthe movement of an object toward Earth solely because of gravity
constant accelerationa steady change in velocity
linear grapha graph in which the displayed data form straight-line parts
nonlinear grapha curve connect the data points that are plotted


Intervention Teacher
Barrington High School
Barrington, RI

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