Light Behavior

Front

What is absorption in the context of light behavior?

Back

Absorption is the process by which light is taken in by a material, converting the light energy into other forms of energy, such as heat.

Front

What is reflection in the context of light behavior?

Back

Reflection is the bouncing back of light rays when they hit a surface that does not absorb the light.

Front

What is refraction in the context of light behavior?

Back

Refraction is the bending of light rays as they pass from one medium to another, caused by a change in their speed.

Front

What causes light to refract when it passes from air to water?

Back

A change in speed of the light causes it to refract as it passes from air (less dense) to water (more dense).

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 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) at the point of incidence.

Front

What is the angle of reflection?

Back

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

Front

What is a normal line in the context of light behavior?

Back

A normal line is an imaginary line that is perpendicular to the surface at the point where the light ray strikes.

Front

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

Back

When light is absorbed by a black surface, it is converted into heat, and the surface becomes warmer.

Front

What is total internal reflection?

Back

Total internal reflection occurs when light traveling in a denser medium hits a less dense medium at an angle greater than the critical angle, causing all the light to be reflected back.