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WorksheetsLesson 2 Colourful World Review
Total questions: 5
Worksheet time: 3mins
Name
Class
Date
1.
What are the three primary colours of light?
a)
Red, yellow, and blue
b)
Red, yellow, and green
c)
Red, green, and blue
d)
Red, yellow, and green
2.
How many RGB LEDs does a LED Module in the uKit Explore kit consist of?
a)
5
b)
6
c)
7
d)
8
3.
Which of the following statements about colours is incorrect?
a)
White light can be decomposed into seven colours of light
b)
We see an object in red because it emits red light
c)
Light, object, and eye are the three essential conditions to perceive colour
d)
Colour is a visual perception resulting from light stimulating our eyes
4.
When the value of all components is 255, what will be the resulted color?
a)
Red
b)
Green
c)
White
d)
Pure Black
5.
when all components have values of 0, What is the resulted color?
a)
White
b)
Green
c)
Pure Black
d)
Blue
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