Light Quiz, Questions And Answers, 4th, 5th, 6th, grade science quiz online. This is a basic physics quiz for students to learn some facts about light; learn about objects that are transparent, transluscent or opaque. Also learn about notions of reflection, refraction and radiation. Learn about the colors of what light and seen in a rainbow. Also learn about absorption of light by black objects and more. Review basic physics skills with this science MCQ quiz.