Front

What part of the eye converts light waves into electrical signals?

Back

Retina

Front

What part of the eye finely focuses light for seeing objects near and far?

Back

Lens

Front

What is the opening in the eye where light enters called?

Back

Pupil

Front

What part of the eye is the outermost layer that protects it?

Back

Cornea

Front

Does light need a medium to travel through?

Back

No

Front

What is the function of the optic nerve?

Back

Transmits visual information from the retina to the brain.

Front

What is the role of the iris in the eye?

Back

Controls the size of the pupil and the amount of light entering the eye.

Front

What is the difference between a wave and a particle in terms of light?

Back

Light exhibits both wave-like and particle-like properties.

Front

What is the speed of light in a vacuum?

Back

Approximately 299,792 kilometers per second (km/s).

Front

What happens to light when it passes through a lens?

Back

It refracts or bends, allowing us to focus images.