Light and Human Eye Quiz

Light is made of

Which is of these things is NOT true about photons

• They have no mass.

• They travel at the speed of light in a vacuum.

• They cannot be destroyed.

• They bounce off things they hit.

Why can't we see photons with our eyes?

• They are too small.

• They are too fast.

• They are too small and too fast.

• We can see photons with our eyes.

This part of the eye has color and opens and closes. 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 on what we see and makes it clearer. What is it?

• Retina

• Lens

• Cornea

• Iris

This part protects the outside of the eye. What is it?

• Retina

• Iris

• 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

What kind of light on the electromagnetic spectrum can humans see?

• All types of light

• Visible Light only

• Visibe Light and Radio Waves

• We don't see light at all.