5.1 Flashcards
1
Q
what is a ray
A
A straight line showing the direction of light
2
Q
what is the law of the reflection
A
when light hits a mirror there is a ray entering and a ray leaving
3
Q
what is incident ray
A
incoming ray
4
Q
what is reflected ray
A
the ray that bounces off
5
Q
what is normal
A
a line perpendicular to the reflective surface that stands between the incidence ray and reflective ray
6
Q
what is the angles of incidence
A
angles between the normal and incident ray
7
Q
what is the angles of reflection
A
angles between the normal and reflected ray
8
Q
what is transparent
A
all or most light is transmitted
9
Q
what is translucent
A
some light rays get though
10
Q
what is opaque
A
prevents any light
