## Color Filters - Questions

The Color Filters Concept Builder is comprised of 42 questions. The questions are divided into 18 different question groups. Questions in the same group are rather similar to one another. The Concept Builder is coded to select at random a question from each group until a student is successful with that group of questions.

There are three different activities that can be engaged in through the Concept Builder. Those three activities are differentiated as follows:

• Light Passage: Question Groups 1-6 ... Learners identify the light colors that pass through a color filter.
• Color the Screen: Question Groups 7-12 ... Learners determine the color of a screen illuminated by light that passes through a filter.
• Nmae That Filter: Question Groups 13-18 ... Learners use the appearance of a pattern of dots viewed through a filter to identify the filter type.

The questions from each group are shown below. Teachers are encouraged to view the questions in order to judge which activities 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.

#### Color Filters

Activity 1:  Light Passage
Question Group 1
Question 1
Red, green, and blue light is incident on a red filter. Which of these light colors will pass through the filter?

Question 2
Blue, red, and green light is incident on a red filter. Which of these light colors will pass through the filter?

Question 3
Green, blue, and red light is incident on a red filter. Which of these light colors will pass through the filter?

Question Group 2
Question 4
Red, green, and blue light is incident on a green filter. Which of these light colors will pass through the filter?

Question 5
Blue, red, and green light is incident on a green filter. Which of these light colors will pass through the filter?

Question 6
Green, blue, and red light is incident on a green filter. Which of these light colors will pass through the filter?

Question Group 3
Question 7
Red, green, and blue light is incident on a blue filter. Which of these light colors will pass through the filter?

Question 8
Blue, red, and green light is incident on a blue filter. Which of these light colors will pass through the filter?

Question 9
Green, blue, and red light is incident on a blue filter. Which of these light colors will pass through the filter?

Question Group 4
Question 10
Red, green, and blue light is incident on a cyan filter. Which of these light colors will pass through the filter?

Question 11
Blue, red, and green light is incident on a cyan filter. Which of these light colors will pass through the filter?

Question 12
Green, blue, and red light is incident on a cyan filter. Which of these light colors will pass through the filter?

Question Group 5
Question 13
Red, green, and blue light is incident on a magenta filter. Which of these light colors will pass through the filter?

Question 14
Blue, red, and green light is incident on a magenta filter. Which of these light colors will pass through the filter?

Question 15
Green, blue, and red light is incident on a magenta filter. Which of these light colors will pass through the filter?

Question Group 6
Question 16
Red, green, and blue light is incident on a yellow filter. Which of these light colors will pass through the filter?

Question 17
Blue, red, and green light is incident on a yellow filter. Which of these light colors will pass through the filter?

Question 18
Green, blue, and red light is incident on a yellow filter. Which of these light colors will pass through the filter?

Activity 2:  Color the Screen
Question Group 7
Question 19
Red, green, and blue light is incident upon two different color filters. The light passing through the filters and illuminates a white screen.  What will be the color appearance of the screen?

Question 20
Red, green, and blue light is incident upon two different color filters. The light passing through the filters and illuminates a white screen.  What will be the color appearance of the screen?

Question Group 8
Questions 21
Red, green, and blue light is incident upon two different color filters. The light passing through the filters and illuminates a white screen.  What will be the color appearance of the screen?

Questions 22
Red, green, and blue light is incident upon two different color filters. The light passing through the filters and illuminates a white screen.  What will be the color appearance of the screen?

Question Group 9
Questions 23
Red, green, and blue light is incident upon two different color filters. The light passing through the filters and illuminates a white screen.  What will be the color appearance of the screen?

Questions 24
Red, green, and blue light is incident upon two different color filters. The light passing through the filters and illuminates a white screen.  What will be the color appearance of the screen?

Question Group 10
Questions 25
Magenta light is incident upon two different color filters. The light passing through the filters and illuminates a white screen. What will be the color appearance of the screen?

Questions 26
Magenta light is incident upon two different color filters. The light passing through the filters and illuminates a white screen. What will be the color appearance of the screen?

Question Group 11
Questions 27
Yellow light is incident upon two different color filters. The light passing through the filters and illuminates a white screen. What will be the color appearance of the screen?

Questions 28
Yellow light is incident upon two different color filters. The light passing through the filters and illuminates a white screen. What will be the color appearance of the screen?

Question Group 12
Questions 29
Cyan light is incident upon two different color filters. The light passing through the filters and illuminates a white screen. What will be the color appearance of the screen?

Questions 30
Cyan light is incident upon two different color filters. The light passing through the filters and illuminates a white screen. What will be the color appearance of the screen?

Activity 3:  Name That Filter
Question Group 13
Question 31
A person is viewing a pattern of colored circles. The light from the pattern passes through a filter on the way to the person’s eyes. The appearance of the pattern is shown. What type of filter is the light passing through?

Question 32
A person is viewing a pattern of colored circles. The light from the pattern passes through a filter on the way to the person’s eyes. The appearance of the pattern is shown. What type of filter is the light passing through?

Question Group 14
Question 33
A person is viewing a pattern of colored circles. The light from the pattern passes through a filter on the way to the person’s eyes. The appearance of the pattern is shown. What type of filter is the light passing through?

Question 34
A person is viewing a pattern of colored circles. The light from the pattern passes through a filter on the way to the person’s eyes. The appearance of the pattern is shown. What type of filter is the light passing through?

Question Group 15
Question 35
A person is viewing a pattern of colored circles. The light from the pattern passes through a filter on the way to the person’s eyes. The appearance of the pattern is shown. What type of filter is the light passing through?

Question 36
A person is viewing a pattern of colored circles. The light from the pattern passes through a filter on the way to the person’s eyes. The appearance of the pattern is shown. What type of filter is the light passing through?

Question Group 16
Question 37
A person is viewing a pattern of colored circles. The light from the pattern passes through a filter on the way to the person’s eyes. The appearance of the pattern is shown. What type of filter is the light passing through?

Question 38
A person is viewing a pattern of colored circles. The light from the pattern passes through a filter on the way to the person’s eyes. The appearance of the pattern is shown. What type of filter is the light passing through?

Question Group 17
Question 39
A person is viewing a pattern of colored circles. The light from the pattern passes through a filter on the way to the person’s eyes. The appearance of the pattern is shown. What type of filter is the light passing through?

Question 40
A person is viewing a pattern of colored circles. The light from the pattern passes through a filter on the way to the person’s eyes. The appearance of the pattern is shown. What type of filter is the light passing through?

Question Group 18
Question 41
A person is viewing a pattern of colored circles. The light from the pattern passes through a filter on the way to the person’s eyes. The appearance of the pattern is shown. What type of filter is the light passing through?

Question 42
A person is viewing a pattern of colored circles. The light from the pattern passes through a filter on the way to the person’s eyes. The appearance of the pattern is shown. What type of filter is the light passing through?