Reflection, Absortion, Transmission Flashcards
When does reflection occur?
Reflection occurs when light encounters a material and is bounced away from it
When hitting the object the rays of light are known as?
Incident rays
When being bounced away from the object the rays are known as?
Reflected rays
The angle at which light hits an object is called?
The angle of incidence
The angle at which light is reflected away from the object is called?
The angle of reflection
What is the normal?
The normal is an imaginary line that is perpendicular to the reflective surface
The wavelengths of light that are reflected away from an object decide what?
They decide the colour of an object
If all wavelengths of light are reflected away from an object what colour will the object appear?
The object will appear white (because all combined wavelengths form white light)
When does absorption occur?
Absorption occurs when light encounters a material and is absorbed is absorbed as a different form of energy
An object can absorb some of the light or all of it, if all light is absorbed and none is reflected the object will appear ______
Black
What happens to the wavelengths of light that are not absorbed?
They get reflected away
What is an example of absorption?
The creation of shadows
How is the creation of shadows an example of absorption?
Because shadows are created because an object is blocking them, and this object is blocking them and the object is absorbing all the light (or reflecting it) therefore preventing any of it from getting to the other side
When does transmission occur
Transmission occurs when light encounters a material and passes through it
Refraction is a type of ________
Transmission
