Light and Eye STUDY GUIDE

Front

What is the fastest medium for light to travel through?

Back

Empty Space

Front

What is the function of the lens behind the pupil in the eye?

Back

Allows us to see objects near and far.

Front

What is an example of a natural light source?

Back

The sun.

Front

What does the Law of Reflection state?

Back

The angle of incidence is equal to the angle of reflection.

Front

What is a wave?

Back

A disturbance that transfers energy from one place to another.

Front

What is the role of the cornea in the eye?

Back

The cornea helps to focus light onto the retina.

Front

What is refraction?

Back

The bending of light as it passes from one medium to another.

Front

What is the difference between a convex lens and a concave lens?

Back

A convex lens converges light rays, while a concave lens diverges them.

Front

What is the retina?

Back

The light-sensitive layer at the back of the eye that converts light into electrical signals.

Front

What is the purpose of the iris in the eye?

Back

The iris controls the amount of light entering the eye.