Year 9 Lenses and the Eye Worksheet
Red parallel rays of lights are going through a convex lens and a concave lens.
Construct the path way the light rays will take as it passes through each lens
The diagram below shows the light entering the eye through the cornea.
Complete the diagram by showing how the light is refracted to the retina
The diagram shows 2 different vision problems.
Identify and describe which diagram is myopia (short sight) and hyperopia
(long sight)
Draw and explain what type of lens (convex/concave) will correct the vision
problem.
With a blue pen, draw a line representing the corrected light pathway.
The muscles attached to the lens either contracts or relaxes to focus on
objects from different distances.
Complete the table below to explain what happens when the muscle
contracts or relaxes.
Muscle contracts
The distance of the
object the eye focuses
on.
Does the lens become
more thinner or fatter?
Through the lens, is the
light bent more or
little?
Muscle relaxes