Refraction Of Waves

Question 1

Describe waves when slowed down

Answer 1

They bend towards normal

Question 2

Describe waves when sped up

Answer 2

Bend away from normal
= caused image of object to appear to have shifted position

Question 3

Adv of wave fronts

Answer 3

Make it easier to visualise lots of waves moving together

Question 4

Describe first wave fronts

Answer 4

• when wave fronts start to enter glass those parts start to slow down
  = causing parts to get closer
  = wavelengths get smaller
  = causing direction to change towards the normal
  = waves refraction

Question 5

Describe waves when perpendicular

Answer 5

Doesn’t change direction