6.4 Colours of light [Should Do]

Red objects appear 'red' because:

• red objects are made from red materials
• red objects absorb red light
• red objects absorb all other colour except red light
• red objects don't reflect any light

What colours is white light made from?

• Orange, Green, Pink, Magenta, Peach, Rose, Lemon
• Red, Orange Yellow, Green, Black, Indigo, Violet
• Red, Orange, Yellow, Green, Blue, Indigo, Violet
• Red, Orange, Yellow, Grey, Blue, Indigo, Violet

Which image correctly shows how light would interact with the t-shirt and shorts?

• A

• B

• C

• D

Why does this the t-shirt appear red and the shorts appear blue?

• The t-shirt reflects red light, the shorts reflect green light, other colours are absorbed.

• The t-shirt reflects blue light, the shorts reflect red light, other colours are absorbed.

• The t-shirt reflects red light, the shorts absorb yellow light, all other colours are reflected

• The t-shirt reflects red light, the shorts reflect blue light, other colours are absorbed.

If you are using a green color filter, what color will you only see?

• blue
• green
• white
• red

Which color reflects all light?

• White
• Black
• Orange 
• Green

Which color absorbs all light?

• White
• Black
• Orange
• Green

Which pair of colours do NOT combine to make the correct secondary colours?

• Red + Blue = Magenta

• Red + Green = Yellow

• Blue + Green = Cyan

• Red + Green = orange

Which image correctly shows how a magenta filter and a yellow filter produce coloured light?

• A

• B

What are the correct reasons why a magenta filter and a yellow filter produce coloured light?

• Magenta and yellow filters allow only one wavelength (colour) of light to pass through.
• Magenta and yellow filters allow primary colours of light to pass through. These colours mix to make yellow and magenta.