Light Flashcards
1
Q
What is a medium?
A
Any substance that light or sound travels through.
2
Q
What is refraction?
A
When light travels from one transparent medium to another, it bends.
3
Q
What is the normal?
A
The normal is a line at a right angle (90 degrees) to the surface.
4
Q
What is the angle of incidence?
A
It is the angle at which a light ray hits a surface.
5
Q
What is the angle of reflection?
A
It is the angle at which a light ray leaves a surface.
6
Q
What is the law of reflection?
A
Angle of incidence = Angle of reflection
7
Q
What happens when light goes from a less dense medium to a more dense medium?
A
Light bends towards the normal
8
Q
What happens when light goes from a more dense medium to a less dense medium?
A
Light bends away from the normal.
