Required practical - Investigating refraction (AQA GCSE Physics): Flashcards
📚Flashcards
Practise the cards
12 cards from this deck
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Practise the cards
12 cards from this deck
What is refraction?
What is refraction?
Light changes direction when moving between different materials
Two things that change during refraction
Two things that change during refraction
Direction of light ray and speed of light
What happens to light speed: air → glass
What happens to light speed: air → glass
Light slows down
What happens to light speed: glass → air
What happens to light speed: glass → air
Light speeds up
Angle of refraction vs incidence (entering denser material)
Angle of refraction vs incidence (entering denser material)
Angle of refraction is always smaller
More optically dense: glass or Perspex?
More optically dense: glass or Perspex?
Glass
Which bends light more: glass or Perspex?
Which bends light more: glass or Perspex?
Glass
Direction change when light travels along normal (0°)
Direction change when light travels along normal (0°)
No change in direction
Where are all angles measured from?
Where are all angles measured from?
From the normal line, not the surface
Definition of the normal line
Definition of the normal line
Line perpendicular to the surface
Aim of the refraction practical
Aim of the refraction practical
Investigate how light changes direction between materials
Safety precaution for ray box
Safety precaution for ray box
Gets hot when used for long periods - avoid burns