Time (duration): How much time has passed, usually in seconds

Position: Where you are x(t)

Displacement: xf – x0

Distance: d1 + d2 + d3 = full distance

Velocity: How fast you are going x'(t) = v(t)

Speed: Velocity, but there is NO direction, it is NEVER lower than velocity

Average Velocity: displacement / dt

Average Speed: distance / dt

Acceleration: How fast velocity is changing x”(t) = v'(t) = a(t)

Average Acceleration: vt – v0 / dt

Deceleration: The acceleration is decreasing from Ex. 2m/s^2 to 0.5m/s^2

Negative Acceleration: The acceleration is where you are accelerating backward.

Speed up / Slow down:
Speed Up: The signs of velocity and acceleration have to agree
Slow Down: The signs of velocity and acceleration do not agree

Extra Derived Units:
The change in acceleration is jerk.
The chance in jerk is jounce.

The 4 Kinematic Equations:
Very useful for finding a variable from others, and each one is missing one, so you don’t need all 4.