Waves and the Electromagnetic Spectrum

Front

What transfers information about the image to the brain?

Back

Optic nerve

Front

What do we call it when rays 'bounce off' an object?

Back

Reflect

Front

When light rays enter a new medium, they bend or _____________.

Back

Refract

Front

What is the black hole at the center of the eye that lets light in?

Back

Pupil

Front

What part of the eye bends and focuses light into images you can see?

Back

Lens

Front

What is a wave?

Back

A disturbance that transfers energy from one place to another.

Front

What is the electromagnetic spectrum?

Back

The range of all types of electromagnetic radiation.

Front

What is reflection in terms of light?

Back

The bouncing back of light rays when they hit a surface.

Front

What is refraction in terms of light?

Back

The bending of light rays as they pass from one medium to another.

Front

What is the role of the retina in the eye?

Back

It converts light into electrical signals for the brain.