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Seeing colour (1.1)

Last updated over 7 years ago

32 questions

Note from the author:

seeing colour

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Question 1

1.

In the rainbow you see all known colours.

True

False

Question 2

2.

The rainbow consists of six colours.

True

False

Question 3

3.

A red object absorbs red light

True

False

Question 4

4.

A white object reflects all the light.

True

False

Question 5

5.

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

Red

Green

Purple

Violet

Question 6

6.

Which of the following is NOT a lightsource

Sun

Moon

Halogen lamp that is switchen on

UV lamp that is switched on

Question 7

7.

Explain in your own words why we see colours.

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.

Question 8

8.

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

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Question 9

9.

Explain how we can see things.

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1

1

1

1

1

Question 16

16.

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

True

False

Question 17

17.

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

True

False

Question 18

18.

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

True

False

Question 19

19.

Most colour blind people can not distinguish between red and green

True

False

Question 20

20.

Which colours are not observed by the cones?

Red

Yellow

Blue

None

Question 21

21.

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

Red and blue

Red and green

Green and blue

Question 22

22.

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

Rods dont see colours

Cones dont see colours

There is no colour present

Question 23

23.

Which colour is NOT absorbed by a red surface?

Red

Blue

Yellow

Green

Question 24

24.

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

Question 25

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?

Question 26

26.

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

True

False

Question 27

27.

The yellow ink of a printer absorbes only one colour.

True

False

Question 28

28.

Cyan absorbes red light.

True

False

Question 29

29.

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

Yellow

Blue

White

Black

Question 30

30.

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

Magenta

Red

Black

White

Question 31

31.

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

Black

White

Grey

Yellow

Question 32

32.

Do you understand the questions 16, 17 and 18?

Question 10

10.

Explain what the difference is between rods and cells

Question 11

11.

Which part of the eye is better at seeing colour?

Rods

Cones

Question 12

12.

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

Rods

Cones

Question 13

13.

Which part is better at spotting movement?

Rods

Cones

Question 14

14.

Which part is better at spotting the finer details?

Rods

Cones

Question 15

15.

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