Reflection Flashcards
What is reflection?
Reflection is when light bounces of a smooth, shiny surface making you to see a clone of an object or person. E.g a mirror
What is the incident ray?
The incident ray is the light moving towards the mirror (or reflective surface).
What is the reflected ray?
The refelcted ray is light moving away from the mirror (or reflective surface).
What is the normal line?
The normal line is the line which we measure angles it is always a right angle (90 degrees).
True or false
The incident ray is always the same angle as the reflected ray
True
What measuring instrument should you use to measure the angle?
A protractor
What happens to light that is not reflected?
It turns into heat enregy.
Why does the moon show light if it does not produce light?
The reason is the sun reflects light onto the moon.
Why can’t light reflect through rough surfaces?
Light can only reflect if the surface is smooth and shiny. E.g paper is actually not smooth or shiny so light cannot reflect through the paper.
True or false
Light cannot reflect on translucent objects
True
