Subtractive colour: spectrum

Learning Material  |  Interactive Lesson  |  RAR

Explore how the colours in white light can be diffracted, absorbed and reflected. Investigate how coloured filters absorb some colours and let others pass through. Use different combinations of filters to block primary colours from passing through a prism onto a white screen. For example, produce a green light by using cyan and yellow filters to block red and blue light. This learning object is one in a series of two learning objects. The series is also packaged as a combined learning object.

Students identify that white light is made up of colored light (the rainbow colors).
Students identify that colored filters selectively absorb colors.
Students identify that the three primary subtractive colors are magenta, cyan and yellow.
Students predict the result when subtractive colours are filtered onto a white screen.

Curriculum Information

K to 12
Grade 8
Force Motion and Energy
Learners, Students

Copyright Information

Education Services Australia
Use, Copy

Technical Information

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