Science Optics Notes

Flashcards for Science Optics Notes

Medium

Something through which light can pass.

Reflection

When light bounces off a surface.

Specular Reflection

Reflection from smooth surfaces.

Diffuse Reflection

Reflection from rough surfaces.

Refraction

The bending of light when it passes through one medium to another.

Light

A form of energy that travels in waves.

Wave Lengths

Radio, microwave, infrared, visible, ultraviolet, X-ray, gamma ray.

Amplitude

Height of crest.

Trough

Lowest point of a wave.

Crest

Highest point of a wave.

Wave Length

Length of a single wave cycle.

Sun

Biggest source of light; solar radiation.

Law of Reflection

The incident angle is equal to the reflective angle in a flat mirror.

Critical Angle

Minimum angle of incidence when the angle of incidence is greater than the critical angle; light goes back into a denser medium.