Interactions of light

reflection, absorption, refraction, and scattering.


When light bounces off of a surface.Most object do not emit light


When light energy is transformed into heat energy in the material it is hitting.


The speed of light in a vacuum is constant at 300,000,000 m/s

the speed slows down when it passes through a medium.

Light changes direction when it changes medium

this change in direction or change in angle is known as refraction.


A scattering of light happens when light travel out out in many different direction as it passes through a medium.

example-the sky