If This ... Then That: Color - Questions

The If This ... Then That: Color Concept Builder consists of 27 questions organized into 12 Question Groups and spread across three difficulty levels. All questions have the same format. You are provided nformation about the color appearance of a shirt when illuminated with two different colored lights. You must then determine the color apperance of the shirt when illuminated with a third light color. The three difficulty levels differ in terms of the number of questions and the complexity of the color combinations that are given. The three difficulty levels are differentiated as follows:

• Apprentice Difficulty Level: Question Groups 1-4 ... Includes the least complex color combinations.
• Master Difficulty Level: Question Groups 1-8 ... Color combinations vary from the easiest to moderate difficulty.
• Wizard Difficulty Level: Question Groups 5-12 ... Includes the most complex color combinations.

As you can see there is some redundancy in the levels The Master level includes Question Groups from the Apprentice level and the Wizard level includes some Question Groups from the Master difficulty level. As such, teachers are encouraged to view the questions in order to judge which difficulty levels are most appropriate for their classes.

The Physics Classroom grants teachers and other users the right to print these questions for private use. Users are also granted the right to copy the text and modify it for their own use. However, this document should not be uploaded to other servers for distribution to and/or display by others. The Physics Classroom website should remain the only website or server from which the document is distributed or displayed. We also provide a PDF that teachers can use under the same conditions. We have included a link to the PDF near the bottom of this page.

If This … Then That

Color Subtraction

Apprentice Difficulty Level
Question Group 1
Question 1
A shirt appears red when red light shines on it. And the same shirt appears blue when blue light shines on it. What color will this shirt appear when magenta light shines on it?

Question 2
A shirt appears green when green light shines on it. And the same shirt appears blue when blue light shines on it. What color will this shirt appear when cyan light shines on it?

Question 3
A shirt appears red when BBBB light shines on it. And the same shirt appears green when green light shines on it. What color will this shirt appear when yellow light shines on it?

Question Group 2
Question 4
A shirt appears red when red light shines on it. And the same shirt appears black when blue light shines on it. What color will this shirt appear when magenta light shines on it?

Question 5
A shirt appears black when red light shines on it. And the same shirt appears blue when blue light shines on it. What color will this shirt appear when magenta light shines on it?

Question Group 3
Question 6
A shirt appears red when red light shines on it. And the same shirt appears black when green light shines on it. What color will this shirt appear when yellow light shines on it?

Question 7
A shirt appears black when red light shines on it. And the same shirt appears green when green light shines on it. What color will this shirt appear when yellow light shines on it?

Question Group 4
Question 8
A shirt appears blue when blue light shines on it. And the same shirt appears black when green light shines on it. What color will this shirt appear when cyan light shines on it?

Question 9
A shirt appears black when blue light shines on it. And the same shirt appears green when green light shines on it. What color will this shirt appear when cyan light shines on it?

Master Difficulty Level
Question Group 5
Question 10
A shirt appears blue when magenta light shines on it. And the same shirt appears green when yellow light shines on it. What color will this shirt appear when white light shines on it?

Question 11
A shirt appears red when yellow light shines on it. And the same shirt appears blue when cyan light shines on it. What color will this shirt appear when white light shines on it?

Question 12
A shirt appears red when magenta light shines on it. And the same shirt appears green when cyan light shines on it. What color will this shirt appear when white light shines on it?

Question Group 6
Question 13
A shirt appears blue when magenta light shines on it. And the same shirt appears green when green light shines on it. What color will this shirt appear when white light shines on it?

Question 14
A shirt appears green when yellow light shines on it. And the same shirt appears blue when blue light shines on it. What color will this shirt appear when white light shines on it?

Question Group 7
Question 15
A shirt appears red when yellow light shines on it. And the same shirt appears blue when blue light shines on it. What color will this shirt appear when white light shines on it?

Question 16
A shirt appears blue when cyan light shines on it. And the same shirt appears red when red light shines on it. What color will this shirt appear when white light shines on it?

Question Group 8
Question 17
A shirt appears green when cyan light shines on it. And the same shirt appears red when red light shines on it. What color will this shirt appear when white light shines on it?

Question 18
A shirt appears red when magenta light shines on it. And the same shirt appears green when green light shines on it. What color will this shirt appear when white light shines on it?

Wizard Difficulty Level
Question Group 9
Question 19
A shirt appears green when yellow light shines on it. And the same shirt appears blue when magenta light shines on it. What color will this shirt appear when red light shines on it?

Question 20
A shirt appears red when yellow light shines on it. And the same shirt appears blue when cyan light shines on it. What color will this shirt appear when green light shines on it?

Question 21
A shirt appears red when magenta light shines on it. And the same shirt appears green when cyan light shines on it. What color will this shirt appear when blue light shines on it?

Question Group 10
Question 22
A shirt appears green when yellow light shines on it. And the same shirt appears cyan when cyan light shines on it. What color will this shirt appear when magenta light shines on it?

Question 23
A shirt appears blue when magenta light shines on it. And the same shirt appears cyan when cyan light shines on it. What color will this shirt appear when yellow light shines on it?

Question Group 11
Question 24
A shirt appears red when magenta light shines on it. And the same shirt appears yellow when yellow light shines on it. What color will this shirt appear when cyan light shines on it?

Question 25
A shirt appears green when cyan light shines on it. And the same shirt appears yellow when yellow light shines on it. What color will this shirt appear when magenta light shines on it?

Question Group 12
Question 26
A shirt appears red when yellow light shines on it. And the same shirt appears magenta when magenta light shines on it. What color will this shirt appear when cyan light shines on it?

Question 27
A shirt appears blue when cyan light shines on it. And the same shirt appears magenta when magenta light shines on it. What color will this shirt appear when yellow light shines on it?