STEPS

New composition.

Your standard settings.

Duration: 5 seconds.

Sky

New Solid Layer.

Color: blue or.... anything else....

Name the layer: sky.

ground

Lock "sky layer.

New Shape layer for ground.

Draw a rectangle. Choose any color.

Lock the "ground" layer.

Our setting is ready.

ball

Select Ellipse tool.

Open Fill options for the circle.

Choose Radial Gradient.

With both layers locked, start drawing a circle (hold SHIFT).

A new Shape Layer will be automatically created in your timeline.

Open settings for:

Contents

Ellipse 1

In Gradient Fill options:

Click on Edit Gradient

Click to select the first Color Stop.

This is going to be your highlight - it appears in the center of the radial gradient.

Select a light color.

Add a color stop to the gradient.

This should be the darkest color of the three.

Adjust the color stops and Color Midpoints if needed.

Click OK.

Now you can use Gradient Controllers to adjust the gradient Start and End points.

Reposition the points as shown to make it look as a sphere.

These changes will be reflected in yout timeline.

Please note, that your values will be different from the ones in this photo.

IMPORTANT!!!

Move the Anchor Point to the bottom of the ball.

Animation

Move the ball off the screen.

Place Time Indicator to 1/2 frame mark (00:12f)

Place a keyframe for Position.

Move to 1 sec. mark.

Move the ball down.

Ground impact

To speed up or slow down the animation (or a part of it) - select the keyframes.

Alt/Option drag one of the end key-frames. It will condence or expand the keyframes uniformly.

If scaling places a key frame in a "half-frame position" - just move the frame.

change impact of the ball hitting the ground