Ch 4.2 Properties of Visible Light
- light -wave that travels through empty space
- one explanation how the light behave is-wave model of light
- visible light is light that can be seen, have colours of the rainbow
- different colours are caused by light waves of different wavelengths
- bending of a wave at the border between mediums-refraction
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light waves of different wavelengths refract in different angles
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colours of visible light: red (longest wavelength, less frequency),orange,yellow,green,blue,indigo, and violet (shortest wavelength,more frequency)
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seven colour categories of visible light together-visible spectrum
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reflection-when a light wave touches an object and bounces off ex. when we look at a red cloth, we notice that the cloth is absorbing all the colours in the white light except for the red light.
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different meterials absorb and reflect different wavelengths of light
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red, green, and blue- additive primary colours of light
If you know everything in this section, why not take a short quiz?
Go to: http://www.bcscience.com/bc8/pgs/quiz_section4.2.htm