ELL Light

Front

What is a light source?

Back

A light source is an object that emits light, such as a lamp or the sun.

Front

What does it mean for a line to be perpendicular to a mirror?

Back

A line is perpendicular to a mirror if it forms a 90-degree angle with the surface of the mirror.

Front

What is a ray of light?

Back

A ray of light is a straight line that represents the path along which light travels.

Front

What is specular reflection?

Back

Specular reflection is the reflection of light from a smooth surface, where light rays are reflected in a single direction.

Front

What is the difference between a light source and a reflection?

Back

A light source emits light, while a reflection is the bouncing back of light from a surface.

Front

What happens to light when it hits an object?

Back

When light hits an object, it can be reflected, absorbed, or transmitted.

Front

What is the law of reflection?

Back

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

Front

What is diffuse reflection?

Back

Diffuse reflection occurs when light hits a rough surface and is scattered in many directions.

Front

What is the role of the eye in vision?

Back

The eye receives light that reflects off objects and sends signals to the brain to create images.

Front

What is the difference between shadow and semi-shadow?

Back

A shadow is a dark area where light is blocked, while a semi-shadow is a region where light is partially blocked.