Colour

Colour G12

K Warne

SAMPLE ONLY SAMPLE ONLY SAMPLE ONLY

For FULL presentation click HERE >> www.warnescience.net

Wave Speed

http://www.warnescience.net/

http://www.sciencecafe.org.za/



Vision





Colour ADDITION - Light

Primary Colours:

R, G & B

Complementary Colours:

R & Cy

M & G

Y & B






Selective Reflection

• Opaque objects - light does not pass through them.

• The color of opaque objects is dependant on the colors that are absorbed.

Cyan Magenta Yellow





Blue

• BLue is seen when red and Green are absorbed.

Blue (in white light)






How a rainbow is formed?

ROYGBIV

Same order!






Colour Problems1. When monochromatic light passes through glass its frequency changes.

T/F ?? (2)

2. Cut glass is used to make ornaments. In light, it shows all the colours of the

rainbow. Which ONE of the following is NOT an explanation for this

observation?

A White light consists of a spectrum of colours.

B Each colour in white light is refracted by different amounts in glass.

C Cut glass has its own characteristic colours.

D White light splits into colours of different frequencies as it passes through glass.

(3)

3.






Hi -

This is a SAMPLE presentation only.

My FULL presentations, which contain loads more slides and other resources, are freely

available on my resource sharing website:

www.warnescience.net

(paste into your browser if link above does not work)

Have a look and enjoy!

Keith Warne






Education

Colour