wavelength

Wave model of light

Model used to explain the characteristics and behaviour of light energy

Wavelength

The distance from the crest of one wave to the crest of the next

Frequency

The number of times the medium vibrates in a given unit of time

Theory of a colour addition

Theory that explains what happens when coloured lights are mixed together

Primary colours

The colours used to create white light (red, blue and green)

Longest waves

Radio waves, microwave, infrared waves

Shortest waves

ultraviolet, x-rays and gamma rays

Longest wavelength

Red

Shortest wavelength

Purple