P4 Properties of light

Light cannot bend over the wall to enable us to see the objects behind the wall

Based on this experiment we know that we can see object in straight line

Many objects around us are not sources of light ,however we are able to see them because they reflect light into our eyes

Based on this picture we know the process:

Object reflects light from the lamp onto the mirror then the mirror reflect the light into our eyes

The mirror allows us to see parts of the shop that are not easily seen otherwise

A periscope allows us to see objects that cannot be seen directly from where we are

is the object that allow light to pass through them, so we can see it clearly

For examples: glass, some plastics appear clear

is the object that allow only some light to pass through them

For examples: some paper, plastic cloth , frosted glass

is the object are not allow light to pass through them at all

For examples: wood, metal, some plastics, cardboard, and clay

is formed because light travels in a straight line, it cannot bend to move around objects.