Making Colours Flashcards
Why is a banana yellow?
A banana looks yellow because it reflects yellow light into our eyes and absorbs all other colours.
Why do black objects look black?
Black objects look black because they do not reflect any colours.
Why do white objects look white?
White objects look white because they reflect all of the colours of light.
What are the primary colours?
RGB
What colours is magenta made up of?
RB
What colours is yellow made up of?
RG
What colours is cyan made up of?
GB
What colours is white made up of?
All
What happens to the three primary colours (red, green and blue) when they pass through a red filter?
For a red filter, red light is transmitted, blue and green light is absorbed
What happens when you put white light through two primary coloured filters?
Because each filter absorbs two colours of light, all three colours are absorbed.
What happens when you shine white light on different coloured paper and why?
Red paper reflects red light, but absorbs the other colours. The paper will show up as its normal colour.
What happens when white light shines on a magenta surface?
When white light shines on a magenta surface, the blue and red parts of the light are reflected, and the green part is absorbed.
