Khan Academy: Refraction and Snell's Law

A video lecture discussing refraction and Snell's Law. Learn about the bending of a light's path as it travels through different mediums. Understand what causes refraction and how to calculate the angle of refraction. [14:23]

The meaning and cause of refraction--as well as Snell's law of refraction--are discussed. Includes an interactive problem-solving form in which visitors relate angles of refraction to the incident angle and the indices of refraction.

Khan Academy presents the rules and processes of naming alkanes and cycloalkanes. [12:34]

This article from Khan Academy provides information about refraction and light bending. This information is intended for the Class 12 Physics Course (India).

An introduction to mechanisms and the rate determining step. Review the example of finding rate law of multistep reaction with an initial slow step. [8:36]

This article from Khan Academy provides information about refraction in water. This information is intended for high school physics students.

An explanation of keeping equilibrium using quasistatic and reversible processes. [14:36]

An introduction to oxidation states, oxidation, and reduction. Find some tips for remembering oxidation and reduction. [10:09]

Explaining group and period trends in atomic and ionic radii. [11:26]

A video lecture explaining elements and their differing properties. Also discussed is how elements relate to atoms and the particles that make up an atom. [13:08]