Light and Vision

Front

What is light?

Back

Light is a form of energy that travels in waves and can be seen by the human eye.

Front

What is vision?

Back

Vision is the ability to see, which is made possible by light entering the eyes.

Front

What does the term 'reflection' mean?

Back

Reflection is when light bounces off a surface.

Front

What is refraction?

Back

Refraction is the bending of light as it passes from one medium to another.

Front

What is the role of the lens in the eye?

Back

The lens helps to focus light onto the retina.

Front

What is the retina?

Back

The retina is a layer of cells at the back of the eye that detects light and sends signals to the brain.

Front

What are the primary colors of light?

Back

The primary colors of light are red, green, and blue.

Front

What is a shadow?

Back

A shadow is a dark area created when an object blocks light.

Front

What is the difference between transparent, translucent, and opaque materials?

Back

Transparent materials allow light to pass through completely, translucent materials allow some light to pass through, and opaque materials do not allow light to pass through.

Front

What is the function of the cornea?

Back

The cornea is the clear front surface of the eye that helps to focus light.