1) White light is made up of ... a) All the colour frequencies in the spectrum b) Black, White and Grey c) Sunlight 2) Light is a form of "......................". that we can see when its reflected off the surface of an object back into our eyes a) Movement b) Darkness c) Food d) Energy 3) All wavelengths of light are visible to humans a) True b) False 4) Which colour light has the highest frequency? a) Ultraviolet light b) Green light c) Blue light d) Red light 5) Infrared radiation is emitted by what type of objects a) Any red coloured object b) Any object that is emitting thermal (heat) energy  c) Wild animals 6) Which cells are sensitive to how intense or bright a light is?  a) Rod cells  b) Cone cells  7) Which cells are sensitive to different wave frequencies of light or colours? a) Cone cells b) Rod cells 8) Ultraviolet light is emitted by sunbeds and nail curing machines a) True b) False

Electromagnetic Spectrum (Quiz)

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