Ray Model of Light (slide 4) Flashcards
Ray Model of Light
angle of incidence
normal
angle of reflection
Luminous objects produce and radiate light
in all
directions
Light ray
A straight line (with an arrow) on a diagram representing the
direction and path that light is travelling
When light hits an object, it may be:
Transmitted
– flow of energy through an object
Absorbed –
– interception of energy (converted to different energy) -clothing/plants
Reflected –
– light changing directions by bouncing off an object (mirror)
Refracted –
light changing directions by bending through an object
Opacity of Objects
ability to transmit light
Transparent Object
allows all or most light to pass through
Translucent Object
some light passes through the object (reflected or absorbed)
Opaque Object
No light passes through (all the light is absorbed or reflected)
Mirror
Any polished surface reflecting an image
Reflection
The bouncing back of light from any surface
Plane Mirror
Flat mirror
Incident ray
Ray of light that travels from the source towards the surface of an object