Refraction Flashcards
What happens when a Ray enters a block at 90°? 
It carries on going straight
What happens when a ray enters a block at any other angle
It bends (refracted )
What happens when the ray comes out of the box at 90°?
It carries on going straight
What happens when the ray comes out of the block any other angle?
It bends back to the same angle it went in
What’s the difference between the direction of the ray entering the block and the direction of the ray emerging from the other side
they are parallel lines but no longer in line with each other
When does refraction occur
Refraction occurs when a wave moves from one medium to another different medium and changes speed and direction
What happens when light moves from air to glass
It slows down
What happens when light moves from glass to air
It speeds up
Will light bend if it enters a different material at 90°
No
What do you notice about the laser beam as it enters water
It bends downwards
Does the laser beam bend away or towards the imaginary normal line as it enters water
Towards
Why does light bend when it travels from one medium to another?
It changes speed
Where does light travel slower
In opticly denser materials
Where does light travel fastest
A vacuum
