Colours of light and filters

Descripción

GCSE Physics Test sobre Colours of light and filters, creado por Ellen Billingham el 04/05/2013.
Ellen Billingham
Test por Ellen Billingham, actualizado hace más de 1 año
Ellen Billingham
Creado por Ellen Billingham hace más de 11 años
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Resumen del Recurso

Pregunta 1

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

Pregunta 2

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

Pregunta 3

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

Pregunta 4

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

Pregunta 5

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

Pregunta 6

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

Pregunta 7

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

Pregunta 8

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

Pregunta 9

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

Pregunta 10

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

Pregunta 11

Pregunta
Why are daffodil petals yellow?
Respuesta
  • 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

Pregunta 12

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