Painting with CMY Lab
Resource Downloads
The Following Information is Provided to the Student
Question: What is the result of mixing primary pigment colors and what strategy could be used for predicting such results?
Purpose: To predict the primary pigment colors required to produce a given color appearance and to describe a successful strategy for making such a prediction.
A complete lab write-up includes a Title, a Purpose, a Data section, a Conclusion/Discussion. The Data section should include the completed table. The Conclusion/Discussion section should include a thorough discussion of a strategy used to predict how to decide which primary pigments must be mixed to produce a given appearance.
URL: https://www.physicsclassroom.com/interactive/light-waves-and-colors/painting-with-cmy
Scoring Ruberic
| L8. | Painting with CMY Lab | Score |
|---|---|---|
| _____ | Included, labeled and organized all parts of the lab report. | _____ / _____ |
| _____ | Data section includes the provided table; answers are given and accurate. | |
| _____ | Conclusion/Discussion includes a thorough and accurate discussion of the strategy used to predict the result of mixing two or more primary pigments. Discussion centers around the strategy (not the answers). Discussion elaborates on the topic, is accurate, not vague nor ambiguous. Discussion reveals understanding. |
Lab Details
Materials Required
A page from Interactives:
https://www.physicsclassroom.com/interactive/light-waves-and-colors/painting-with-cmy
Description of Procedure
Students log on to the above page. They select the desired section of the player's uniform from the pull-down menu. They then click on the buttons to add cyan, magenta and yellow paints to the selected section of the uniform in order to produce the desired color. As a conclusion, students discuss the strategy which could be used to predict the primary pigment colors which would be required to produce a given appearance.
Alternative Materials and Procedure
A more thorough approach to this lab is provided at Interactives:
The alternative exercise is a guided exercise with an extensive procedure.
Safety Concerns
Suggestions, Precautions, Notes
- The most unique part of the lab is the wording of the Purpose. Students must develop a strategy that would be capable of predicting which pigment colors would result in a specified color. Students are not asked to find the answers; they are asked to find the strategy.
Links
Connections to The Physics Classroom Tutorial:
The following readings are a suitable accompaniment to this lab:
http://www.physicsclassroom.com/Class/light/u12l2c.cfm
http://www.physicsclassroom.com/Class/light/u12l2d.cfm
http://www.physicsclassroom.com/Class/light/u12l2e.cfm
Connections to Minds on Physics Internet Modules:
Sublevels 6 and 7 of the Light and Color module are suitable accompaniments to this lab:
https://www.physicsclassroom.com/minds-on/light-waves-and-colors