Magnatolia, if you say you are looking for art, then you will need to be much more specific. Great post above by Mike/Brashmonkey.
For a simple games, I typically divide assets up into three major categories: Sounds, Music, and Graphics. When I want the visual assets, I will generally refer to them as graphics. The one exception I can think of now is when I'm looking for an animation, then I may search for a "sprite sheet", which may still be of any type of quality.
I think of sprites as visual assets that go into a production. And, once a visual asset is in a game, then you can call it an object, graphic, image, and/or sprite.
Anybody else have thoughts on this?