Question

Define the art term, light. Describe the purpose and importance of light.

Answer 1

Light is the way you see a piece of art. You could see it in a negative or positive light similar to English "Connotations" It's important to see a picture from different light angles because you could see something in one that you didn't in another. 
Hope this helps!

Answer 2

Answer:

Light is the illumination coming from a light source. Most importantly, light is what allows us to see images or objects at all. Without light in art, we would be unable to see, or differentiate between objects, or even create them. Light is the element that allows us to see color, and allows for shading and shadowing to exist, which helps create a three dimensional appearance.