Light and Eyes

This part of the eye has color and changes the size of pupil. What is it?

• Iris

• Retina

• Optic Nerve

• Cornea

Light enters this part of the eye. What is it?

• Lens

• Pupil

• Retina

• Optic Nerve

This part of the eye focuses the light rays on the retina. What is it?

• Retina

• Lens

• Cornea

• Iris

This outer layer that protects the eyeball What is it?

• iris

• sclera

• Cornea

• Optic Nerve

This is like a moving screen showing an upside down image of what we are seeing. What is it?

• Cornea

• Iris

• Retina

• Lens

This sends the image of what the eye sees to the brain. What is it?

• Optic Nerve

• Retina

• Lens

• Iris

How do light rays travel?

• In a straight line

• In a curved line

 

There are two types of light-sensitive cells in the human eye.

Select all that are correct.

• The two types of light-sensitive cells are found in the retina.

• They are called rods and cones.

• Both Cones and Rods are sensitive to bright light and colours

• Rods are sensitive to dim light and cones are sensitive to bright light and colours

Name the cells on the retina of an eye which are sensitive to bright light

• Cones

• Rods

The path light takes through the eye....

• Cornea, Retina, Optic Nerve, Iris, Pupil, Lens

• Cornea, Iris, Optic Nerve, Pupil, Lens, Retina

• Cornea, Iris, Pupil, Lens, Optic Nerve, Retina

• Cornea, Iris, Pupil, Lens, Retina, Optic Nerve,