Specifications

Create a motion tween 155
Create a motion tween
You create a motion tween by defining properties for an instance, a
grouped object, or text in a starting keyframe, and then changing the
object’s properties in a subsequent keyframe. Flash creates the animation
from one keyframe to the next in the frames between the keyframes.
To create a motion tween, you’ll take an instance of a tire symbol and make
it appear to bounce.
1. In the Timeline (Window > Timeline), double-click the Layer 1 title
and type TireAnim. Press Enter (Windows) or Return (Macintosh) to
rename the layer.
2. With the TireAnim layer still selected, drag the Tire movie clip from the
Library window (Window > Library) to the Stage, positioning it above
the tire shadow.
3. Use the Selection tool to reposition the tire, if necessary.
4. With the Selection tool still selected, in the TireAnim layer, select
Frame 30. Then press F6 to insert a keyframe.
5. Select Frame 15 and press F6 to add another keyframe.
6. With the playhead still on Frame 15, press Shift to move the tire in a
straight line, and drag the tire up.