CP4C Refraction Flashcards
(5 cards)
1
Q
What word is used to describe when a wave bounces off a surface
A
Reflection
2
Q
What is the normal
A
A vertical imaginary line which is a perpendicular to the boundary
3
Q
What occurs when light is reflected off a boundary
A
It bounces off a smooth flat surface so that the angle of incidence (the angle it comes in at) is the same as the angle of reflection
4
Q
What is refraction
A
Refraction is the change in speed of a wave as it reaches a boundary between two media resulting in a change in direction
5
Q
What happens to light rays when they pass from air into glass
A
The velocity decreases and slows downs so light moves towards the normal and after it travels through the glass block it speeds up and bends away from the normal
