acceleration
Motion is a change in position.
Velocity is a change in an object's motion OR direction of motion.
If it is constant change in motion, it is acceleration.
Motion is the change in an object's position.
A change in velocity basically IS a change in motion.
Acceleration in motion refers to a change in speed or direction of that object's motion. So a type of motion in which speed and direction do not change is a motion in which the acceleration is constant (i.e. unchanging).
Motion is not a force; it is the change in position of an object over time. Force, on the other hand, is a push or pull that can cause an object to move or change its motion. Forces can accelerate, decelerate, or change the direction of motion.
Motion occurs when there is speed. A change of speed is not required.
In linear or axial motion, a change in speed, a deceleration or an acceleration.
A balanced force will NOT cause a change in motion.
Change of Venue
Not exactly. 'Motion' or 'change of motion' are not force. But the only way to change an object's motion is to cause the group of forces on it to be unbalanced. If the object's motion is changing, then you can be sure that the group of forces acting on it is unbalanced.