base = location 1st = velocity (location/time AKA speed) 2nd = acceleration (location/time/time AKA rate of change of speed) 3rd = jerk (location/time/time/time AKA rate of change of acceleration)

If you've ever rode in (or drove) a Model S P85D, P90D, P100D, Performance AWD, or Plaid, you'll understand "jerk".