Optics 6b: Colours of Light II

• Physics
• Secondary Education
• Age 13

Forces and Motion

Lesson 13. 

Colours of Light

How are you today?

😒🙁😐🙂😃

Highlights of the Day

• describe how colours of light can be added, subtracted, absorbed, and reflected

• Values :  Responsibility and Determination

Hear the Colours

Hear the Colours !

GREEN

BLUE

RED

MAGENTA

CYAN

YELLOW

GREEN

BLUE

RED

MAGENTA

CYAN

YELLOW

GREEN

BLUE

RED

MAGENTA

CYAN

YELLOW

Recall Questions

TRUE or FALSE:
The primary colours cannot be made by mixing any other colours of light.

1. TRUE
2. FALSE

Which of the following is NOT a primary colour?

1. red
2. blue
3. green
4. yellow

TRUE or FALSE:

The primary colours of light are the same from the primary colours in paints.

1. TRUE
2. FALSE

Red + Green =

Red + Blue =

Blue + Green =

Red + Green + Blue =

Yellow

Cyan

Magenta

White

What is a light filter used for?

1. remove white colours
2. remove colours from light
3. make beautiful shots

Only the green light can pass through a green transparent filter.

1. TRUE
2. FALSE

Subtracting Colours of Light

Light Colours

Substracting colours of light

A common example of coloured filters is in traffic lights.

The traffic lights use three identical white lamps. In front of each lamp is a coloured filter for red, yellow, and green.

[

Filters

White Light

White Light

White Light

How do we see colours from an object?

Self-survey: Rate your level of understanding and participation in this lesson.

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