Light

hi this is my post,

Light travels both in straight lines and through reflection, which is a process in which light enters a prism and bends. Discover how light bends when going from one material to another with information from a science teacher in this video on physical science.




This is another video that shows about the refraction of light.



After viewing this 2 videos,let me explain again about light.Light,is an important source of energy,it enables us to see.Light also travels in straight lines because if it doesn't,what we see will not be accurate.A better example on whether light travels in straight lines are shown below.


as you can see,light travels through the holes in a straight horizontal position to the eye because it is traveling in straight lines.

Reflection,can occur when the light rays hit the surface of another medium.These mediums can be either mirrors,glasses or things that has a smooth surface.There also different types of mirrors,e.g:Plane Mirrors,Concave Mirrors and Convex Mirrors.
Images reflected in a plane mirrors has Characteristics.These characteristic are shown below.

Characteristics: -Distance of the image from the mirror is equal to the distance
of the object from the mirror.
-Same Size
-Upright
-Laterally Inverted
-Virtual

Refraction,occurs when light travels from one medium into another medium of different density(e.g AIR to WATER).The light changes its direction and bends when refracted.Light travels at different speeds for different materials.The speed of light depends on the optical density of the material.Light travels at slower speed in materials which has a higher optical density.TheBending of light is caused by changes in speed of light.


Done By R0n@Ll) Class:2e3 Index Number:34 :)