reflection
when light rays reflect from a reflective surface
law of reflection
reflection ray is equal to incidence ray
Concave mirrors
Reflected rays converge
Upside down
Smaller view of object
Convex mirrors
Rays diverge
Wider view of object
Refraction
Redirection of light as it moves through different mediums
Speed of light changes as it goes through different materials
light bends when moves through objects that have different density
bends towards normal in denser object
Bends away from normal then leaves denser object
transmission
light moving through electromagnetic wave through a material
absorption
electrons absorbing energy of light wave, changing their energy state
index of refraction
measuring bending when light ray goes from one medium to another
Normal line
Imaginary line perpendicular to mirror at point of reflection
Scientists measure light ray angles surfaces
Reflected Ray
Ray of light after being reflected
Incident Ray
Ray of light before hitting reflective surface
Angle of incidence
Angle measured between normal line and incident Ray
Angle of reflection
Angle measured between normal line and reflected ray
Point of reflection
Point of which light Ray reflected
Angle of incidence equal
To the angle of reflection
opaque
Can’t see through
no light passes through
absorbs and partially reflects back
translucent
partially see through
some light passes through
only transmits, reflects
transparent
fully see through
all light passes through
absorbs, transmits, reflects light