Optics - Reflection

Front

What is reflection in optics?

Back

Reflection is the bouncing back of light rays when they strike a surface.

Tags

NGSS.MS-PS4-2

Front

What are the two main types of reflection?

Back

Specular reflection (mirror-like) and diffuse reflection (scattered).

Tags

NGSS.MS-PS4-2

Front

Define specular reflection.

Back

Specular reflection occurs when light reflects off a smooth surface, producing a clear image.

Tags

NGSS.MS-PS4-2

Front

Define diffuse reflection.

Back

Diffuse reflection occurs when light reflects off a rough surface, scattering the light in many directions.

Tags

NGSS.MS-PS4-2

Front

What is the angle of incidence?

Back

The angle of incidence is the angle between the incoming light ray and the normal (a line perpendicular to the surface).

Tags

NGSS.MS-PS4-2

Front

What is the angle of reflection?

Back

The angle of reflection is the angle between the reflected light ray and the normal.

Tags

NGSS.MS-PS4-2

Front

State the law of reflection.

Back

The law of reflection states that the angle of incidence is equal to the angle of reflection.

Tags

NGSS.MS-PS4-2

Front

What is a normal line in optics?

Back

A normal line is an imaginary line perpendicular to the surface at the point of incidence.

Tags

NGSS.MS-PS4-2

Front

What happens to light when it is absorbed by a surface?

Back

When light is absorbed, it does not reflect or refract; instead, it is converted into other forms of energy, like heat.

Tags

NGSS.MS-PS4-2

Front

What is refraction?

Back

Refraction is the bending of light as it passes from one medium to another with a different density.

Tags

NGSS.MS-PS4-2