Will was riding his bike when a dog ran out in front of him. he slammed on his brakes. during this quick stop, some of the mechanical energy (his motion) was changed into what?

i guess that visual aids present persuasive examples to what you are presenting, some factors would be theme (does it fit with the color, information, what you are presenting), size (can you see it, is it a big enough span of data/information), and overall look of the visual aid.

hope this : )