# Basics of Motion Tweens

Motion tweens provide an easy way to create animation.

A motion tween modifies display object properties, such as position or rotation,
on a frame-to-frame basis. A motion tween can also change the appearance of a
display object while it moves by applying various filters and other properties.
You create the motion tween interactively with Flash Professional, which
generates the ActionScript for the motion tween. From within Flash, use the Copy
Motion as ActionScript 3.0 command to copy the ActionScript that created the
motion tween. Then you can reuse the ActionScript to create movement in your own
dynamic animation at runtime.

See the Motion Tweens section in _Using Flash Professional_ for information
about creating a motion tween.

#### Important concepts and terms

The following is an important term that is relevant to this feature:

**Motion tween**  
A construct that generates intermediate frames of a display object in different
states at different times; gives the appearance that the first state evolves
smoothly into the second. Used to move a display object across the stage, as
well as make it grow, shrink, rotate, fade, or change color over time.
