When someone is like happy and sad
motion
Comparing one motion to another.
set into motion
a quick motion
Capillary motion is a movement of liquids in small tubes. This motion can be also ascensional.
That is the definition of motion
Going backwards.
it is an expected
it is used to demonstrate the relation between motion and cause of motion.
It is motion in a straight line at a constant velocity.
Constant acceleration motion can be characterized by motion equations and by motion graphs. The graphs of distance, velocity and acceleration as functions.
Retrograde motion describes something by definition. It is not and has never been a theory.