Light

Front

What is light?

Back

A form of energy that travels in straight lines.

Front

What is a medium?

Back

A form of matter that may or may not allow light to pass through it.

Front

What happens to light when it changes speed?

Back

Its path is changed, and light rays are bent as they pass through, a process called refraction.

Front

What is refraction?

Back

The bending of light rays as they pass through different mediums.

Front

What surfaces absorb light best?

Back

Dark surfaces absorb light best.

Front

What are the three main types of mediums?

Back

Solid, Liquid, and Gas.

Front

What is NOT one of the three main types of mediums?

Back

Plastic.

Front

What is reflection?

Back

The bouncing back of light when it hits a surface.

Front

What is absorption in terms of light?

Back

The process by which light is taken in by a surface.

Front

What is the difference between transparent and opaque materials?

Back

Transparent materials allow light to pass through, while opaque materials do not.