Question

name
date
use with textbook pages 296 to 299.
additive and subtractive colours
answer the questions below.

1. complete each statement.

a) the additive primary colours are _, _, and _.
these colours are the same as the subtractive _ colours.
b) the subtractive primary colours are _, _, and _.
these colours are the same as the additive _ colours.

1. complete the following colour equations.

a) red + blue =
e) white-(cyan + yellow)=
b) green + blue =
f) white-(magenta + yellow)=
c) red + green + blue =
g) white-(cyan + magenta + yellow)=
d) cyan + red =
h) white-(green + magenta)=

1. connect each pair of complementary colours.

124 mhr - unit 4 light and applications of optics 978 - 0 - 07 - 031863 - 4

Explanation:

1a) Additive primary colours are red, green, and blue which are the same as subtractive secondary colours.
1b) Subtractive primary colours are cyan, magenta, and yellow which are the same as additive secondary colours.
2a) Red + blue = magenta.
2b) Green + blue = cyan.
2c) Red + green + blue = white.
2d) Cyan + red = white.
2e) White - (cyan + yellow) = red.
2f) White - (magenta + yellow) = green.
2g) White - (cyan + magenta + yellow) = black.
2h) White - (green + magenta) = blue.

1. Complementary colour pairs: red - cyan, green - magenta, blue - yellow.

Answer:

1. a) red, green, blue; secondary

b) cyan, magenta, yellow; secondary

1. a) magenta

b) cyan
c) white
d) white
e) red
f) green
g) black
h) blue

1. red - cyan; green - magenta; blue - yellow