Animating with Photoshop

“Describe the steps you would take to create a simple animation of a ball moving from left to right across the screen in Photoshop, using a video layer in the timeline panel. You want to create a simple animation of a lightbulb turning on and off in Photoshop. Describe how you would use a video group and normal Photoshop layers within the timeline panel to achieve this effect. Explain how you would use the timeline panel in Photoshop to create a simple animation where a square changes color every 3 frames. Specify whether you would use a video layer or video group, and why.”