[Free Registration/Login Required] In the scenario shown here, the laser cannot shine through the black barrier but can hit all three targets by reflecting off of the floor. Use the red dot to change the angle of the laser generator and...

Focusing on the question, "By how much does light refract when it crosses a boundary?" this physics tutorial will allow students the opportunity to explore these concepts of refraction.

Illustrated examples and interactive practice problems that introduce students to the concept of the critical angle, the angle of incidence that provides an angle of refraction of 90-degrees.

This site from Georgia State University is an indexing page for several other pages on the topic of reflection. Topics are treated in an understandable manner and utilize meaningful graphics.

Use the angle of incidence and the angle of refraction to determine the index of refraction for a material.

An interesting and engaging activity where students work in groups with a laser pointer and small mirrors. They must use their knowledge of angles of reflection to bounce the laser beam from mirror to mirror until it hits a target at the...

Through illustrated examples and interactive practice problems, students explore the details of Snell's Law.

In this illustrated physics tutorial, students investigate several of the types of problems that you will have to solve, and learn the task of tracing the refracted ray if given the incident ray and the indices of refraction.

In this interactive physics tutorial, students will learn about a mathematical equation relating these two angles and the indices of refraction of the two materials on each side of the boundary.

Contains a four step procedure to deriving the law of reflection using algebra, Fermat's principle, and calculus (simple derivatives). This is good for an in-class theoretical exercise.

A video and a short quiz on the properties of light.

In this illustrated physics tutorial, students investigate the connection between light reflection and light refraction.

A fairly short biographical sketch of Willebrord Snell (1591-1626 CE). Discusses his upbringing, education and professional life.

In this exploration, students will investigate how light reflects off smooth surfaces, learn about angles of reflection, and apply that knowledge in a relay experiment.

An interactive Java applet which allows the user to investigate the path of light through a lens shape object. The shape of the object, the index of refraction of the material, and the location of the incident rays can be altered.

This unit helps students learn to apply the concept of solar energy conservation. They are introduced to angles and their effect on the amount of light reflected, and they will also design, construct, manipulate, critique, evaluate and...

In this activity, students actually find the angles of reflection and incidence.

This PDF document from the Centers for Disease Control and Prevention contains detailed information about pertussis from several different angles. Information is provided on the clinical features, the complications, the incidence and the...

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.