physics unit one: graphing motion
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15 Terms
scalar
quantity with magnitude (number and unit) only, not direction
vector
quantity with magnitude and direction
position
an object’s distance and direction form its origin
distance
the entire length of an object’s path; the length an object travels
displacement
change in position of an object
speed
the distance an object travels ver time; how quickly an object moves
velocity
the change in an object’s position or displacement over time
constant velocity
the change in position of the object stays the same over time; the speed and direction of an object do not change over time
instantaneous velocity
the speed and direction of an object at a specific moment in time
average velocity
total displacement of an object over the time interval in which motion occurred
average speed
total distance of an object over the time interval in which motion occurred
acceleration
the change in velocity over time
average speed formula
total distance/total time
average velocity formula
total displacement/total time
displacement formula
final position-initial position