Reflection & Refraction

Front

What is reflection?

Back

Reflection is the bouncing back of light when it hits a surface.

Front

What is refraction?

Back

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

Front

What is a medium in terms of light?

Back

A medium is a material through which light can travel, such as air, water, or glass.

Front

Why does a straw look bent in a glass of water?

Back

The straw looks bent because of the refraction of light as it passes from water to air.

Front

What happens to light when it hits a mirror?

Back

When light hits a mirror, it is reflected, allowing us to see our image.

Front

What is the path of light?

Back

Light travels in straight lines unless it is reflected or refracted.

Front

What is the difference between reflection and refraction?

Back

Reflection is the bouncing back of light, while refraction is the bending of light.

Front

What do we call the angle at which light hits a surface?

Back

The angle of incidence.

Front

What do we call the angle at which light is reflected?

Back

The angle of reflection.

Front

What is optical density?

Back

Optical density refers to how much a material can slow down light, affecting refraction.