light - refraction and reflection

are rays of light bent with refraction or reflection?

refraction

why does light bend?

because it slows down

how are angles of incidence and refraction measured?

between the normal and the corresponding ray of light

what cases a greater refraction?

a greater speed

why is light more bent by glass than by water?

glass is more dense than water so it slows down more

what is reflection?

when light hits a surface it reflects back and changes direction

is light a transverse or longitudinal wave?

transverse

the angle the ray is reflected is always the same as what?

the angle that hit the mirror with both angles being measured from the normal

what is the angle reflected equal to?

the angle of incidence

what diagram shows the path of light rays which are reflected and how images are formed in a mirror?

a ray diagram

what happens when waves hit some materials?

the energy is absorbed