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1-3 Mixing colours (1.1)
Mixing colours (p. 16)
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Natuurkunde
Middelbare school
havo
Leerjaar 2
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Mixing colours (p. 16)
Bluetooth
- On
Stationary
- Books
- Pen and pencil
- iPad
Report
- NO
Lessonup
- Yes
Bags
in
the cuboard
Phones
in the phone holder
Slide 1 - Diapositive
Lesson goals:
What happens when we mix colours of light?
What happens when we mix colours of paint?
Slide 2 - Diapositive
Activity 2 (p. 19)
Slide 3 - Diapositive
Slide 4 - Diapositive
Mixing paint
Groups of two
Take a piece of paper
Place on it about 10 drops of each colour of paint.
Mix the colours together and write what the result is.
Write an explanation for the difference you observed when you mixed colours of paint and when you mixed colours of light.
timer
8:00
Slide 5 - Diapositive
Why do you think there is a difference when you mix licht as compared to when you mix paint?
Slide 6 - Question ouverte
Mixing colours of paint
When mixing the primary colours of paint, you get dark colours.
When it comes to paint, you must not so
much look
at which colours are reflected.
It is more about which colours are absorbed.
With yellow, magenta and cyan paint, we can make diffrent colours.
Slide 7 - Diapositive
Which colours does a printer have?
Slide 8 - Diapositive
When you look at a blue jersey through a red filter, it will appear black.
Slide 9 - Diapositive
An inkjet printer usually only has four colours of ink: magenta, cyan, yellow and black
A
True
B
False
Slide 10 - Quiz
The yellow ink of a printer absorbes only one colour.
A
True
B
False
Slide 11 - Quiz
Cyan ink absorbes red light.
A
True
B
False
Slide 12 - Quiz
Which colour will you see if you project yellow light on a blue screen?
A
Yellow
B
Blue
C
White
D
Black
Slide 13 - Quiz
Which colour will you see if you project magenta on a red screen?
A
Magenta
B
Red
C
Black
D
White
Slide 14 - Quiz
Which colour will you see if red, green and blue are projected on a white screen?
A
Black
B
White
C
Grey
D
Yellow
Slide 15 - Quiz
phet.colorado.edu
Slide 16 - Lien
Do the following questions:
16 to 18 (p. 17)
In your writingbook
Rules:
- 6 minutes
- No talking
Finished early: play with the simulation
timer
5:00
Slide 17 - Diapositive
In a nutshell:
When mixing colours of light, focus on which colours are reflected,
and when mixing colours of paint, focus on which colours are absorbed.
Slide 18 - Diapositive
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