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Laabri

Seeing colour (1.1)

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Last updated almost 8 years ago
32 Nsɛmmisa
Hyɛ no nsow a efi ɔkyerɛwfo no hɔ:

seeing colour

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Now you can do activity 2 to 8 on page 12 in your textbook. Once you are done, use the answers below to check your work.

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1.

In the rainbow you see all known colours.

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2.

The rainbow consists of six colours.

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3.

A red object absorbs red light

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4.

A white object reflects all the light.

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5.

Which colour does not belong to the six colours of the rainbow?

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6.

Which of the following is NOT a lightsource

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7.

Explain in your own words why we see colours.

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8.

Begrijp je de opgaven van het boek die je net gemaakt heb? Antwoord alleen ja of nee

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9.

Explain how we can see things.

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10.

Explain what the difference is between rods and cells

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16.

A colour tv only works with red, yellow and blue pixels

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17.

With only three colours, you can make all the colours of the rainbow

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18.

Under a coloured lamp it is possible for objects of colour to appear black.

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19.

Most colour blind people can not distinguish between red and green

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20.

Which colours are not observed by the cones?

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21.

Which cones react more strongly to the light of a candle?

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22.

Why do you not see colour when observing things in the moonlight?

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23.

Which colour is NOT absorbed by a red surface?

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24.

Do you understand the questions from the book? If your answer is no, have another look at the video.

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25.

Why do you think there is a difference when you mix different colours of light as compared to when you mix different colours of paint?

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26.

An inkjet printer usually only has four colours of ink: magenta, cyan, yellow and black.

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27.

The yellow ink of a printer absorbes only one colour.

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28.

Cyan absorbes red light.

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29.

Which colour will you see if you project yellow on a blue screen?

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30.

Which colour will you see if you project magenta on a red screen?

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31.

Which colour will you see if red, green and blue are projected on a white screen?

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32.

Do you understand the questions 16, 17 and 18?

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11.

Which part of the eye is better at seeing colour?

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12.

Which part of the eye can spot the contrast between different shades of grey?

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13.

Which part is better at spotting movement?

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14.

Which part is better at spotting the finer details?

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15.

What is peripheral vision. (Write it in your own words, and dont copy-paste something)