Motion definitions
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13 Terms
Distance
The total distance of a path, regardless of direction.
Speed
The distance per unit of time.
Frame of Reference
A plane that you determine to be still and has an origin that you determine to be (0,0).
Position
Distance from the origin in a particular direction.
Displacement
Change in position.
Velocity
Displacement per unit of time.
Acceleration
Change in velocity per unit of time.
Vector
Physical measurements that have both a magnitude (a numerical value with units) and a direction. Common examples include displacement, velocity, force, and acceleration.
Scalar
A physical quantity described only by its magnitude (a single numerical value) and a unit, lacking any directional component
Speed(e)
S=D/t
Displacement(e)
DeltaX=Xf-Xi
Velocity(e)
V=Xf-Xi/t
Acceleration(e)
a=DeltaV/t
