Colours of light and filters

Ellen Billingham
Quiz by , created almost 6 years ago

GCSE Physics Quiz on Colours of light and filters, created by Ellen Billingham on 04/05/2013.

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Ellen Billingham
Created by Ellen Billingham almost 6 years ago
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Question 1

Question
What happens when you look through a filter?
Answer
  • Nothing
  • Everything seems to turn that colour

Question 2

Question
What happens if you look through a number of filters at the same time?
Answer
  • The colours of light you see appear darker
  • You see a rainbow

Question 3

Question
If you are looking through a red filter, what do objects that are red anyway look like?
Answer
  • They appear really bright so you can't miss them
  • It looks like they aren't there

Question 4

Question
What colour light would a green filter allow you to see?
Answer
  • Green
  • Yellow and cyan

Question 5

Question
If you have a white light and you put more than one filter over it, what happens?
Answer
  • It will subtract more colours from the white light.
  • It won't do anything because white light is too bright.

Question 6

Question
What are the three primary colours of light?
Answer
  • Red, green and blue
  • Yellow, magenta and cyan

Question 7

Question
What are secondary colours?
Answer
  • Different shades of the primary colours.
  • The colours you get when you mix two of the primary colours together.

Question 8

Question
Which two primary colours mix together to make yellow?
Answer
  • Green and red
  • Blue and green

Question 9

Question
Which two primary colours make cyan when they are mixed together?
Answer
  • Red and blue
  • Green and blue

Question 10

Question
Which two primary colours make magenta when they are mixed together?
Answer
  • Green and red
  • Red and blue

Question 11

Question
Why are daffodil petals yellow?
Answer
  • Because the pigments in them absorb blue light, so only red and green are there and they make yellow.
  • Because that's what colour they are in their DNA

Question 12

Question
If you look through a red filter, what colour would something that is cyan coloured appear to be?
Answer
  • Red
  • Black