KS3 Waves 09: Understanding Light and Colour

What are the three primary colours?

• Red, Green, Blue

• Red, Yellow, Blue

• Green, Yellow, Blue

• Red, Green, Yellow

What determines the colour of an object?

• The angle of light it refracts

• The frequency of light it absorbs

• The intensity of light it emits

• The wavelength of light it reflects

What can be used to split white light into a spectrum of colours?

• A lens

• A mirror

• A filter

• A prism

Which colours are seen at higher frequencies of light?

• Indigo and Yellow

• Green and Yellow

• Red and Orange

• Blue and Violet

What colour is seen when red light and green light are mixed?

• White

• Blue

• Yellow

• Orange

What happens when all three primary colours are mixed together?

• Green light is seen

• White light is seen

• Black light is seen

• Yellow light is seen

What does a lemon reflect?

• Red light

• Blue light

• Green light

• Yellow light

What is white light from the Sun made up of?

• A mixture of colours

• A single colour

• Only green and yellow

• Only red and blue

What is the middle colour in the spectrum of visible light?

• Yellow

• Blue

• Red

• Green

What is the role of light and colour in photography?

• To change the shape of objects

• To bring out certain features

• To increase the size of objects

• To decrease the brightness of objects