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Ntnu Virtual Physics Lab: Thick Lens Java Applet
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.
Other
Propagation of Light Using Geometry
A discussion of Christian Huygens' contribution to wave optics, and particularly to our understanding of the reflection and refraction of light. Excellent diagrams and a geometric proof on why the law of reflection is mathematically...
Better Lesson
Better Lesson: Refraction Extravaganza!
Fourth graders learn how light waves bend differently in different mediums.
My Science Site
B J Mst: Behaviour of Light
This resource explores light reflection and refraction by providing colorful illustrations and examples.
University of Texas at Austin
The University of Texas Mc Donald Observatory: Super Gelatin
Students measure the angles of refraction of laser light traveling through gelatin, then plot their data to calculate the gelatin's index of refraction.
Science Education Resource Center at Carleton College
Serc: Com Padre: The Magic of Optics: Now You See It, Now You Don't
A lesson demonstrating the concept of refraction. It uses a highly engaging 'magic' trick where a smashed glass tube is seemingly put back together.
Exploratorium
Exploratorium: Science Snacks: Disappearing Glass Rods
In this activity, you will make a glass object disappear by eliminating the reflection from and the refraction by the glass object.
TeachEngineering
Teach Engineering: Needing Illumination: Investigating Light
This is the first instructional activity of this unit to introduce light. In this instructional activity, students learn the five words that describe how light interacts with objects: "transparent," "translucent," "opaque," "reflection"...
Other
Center for Game Science: Refraction
Use your knowledge of fractions, to save animals who have gotten stuck in space. Game practices the following concepts: equal partitioning, addition, multiplication, mixed numbers, improper fractions, and common denominators. Teacher can...
Physics Classroom
The Physics Classroom: Optical Density and Light Speed
A tutorial page explaining how the speed of light is dependent upon the optical density of the material through which it moves. Optical density is related to the index of refraction; sample values are given.
Utah Education Network
Uen: Trb 6:6: Activity 4 Lemon Light
An exploration of light refraction using lemon gelatin.
Exploratorium
Exploratorium: Critical Angle
Students can see light reflected and refracted in this demonstration. They will also discover the total internal reflection of light.
Optical Society
Optical Society of America: Optics for Kids: Make Money Appear Before Your Eyes
A simple experiment that clearly demonstrates how light bends when it passes through water. Accompanied by a good explanation of what's happening, and a link to an article on refraction.
CK-12 Foundation
Ck 12: Plix: Refraction: Light Entering Water
[Free Registration/Login Required] Explore how water distorts the location of objects due to the speed at which light travels through different mediums by moving the red point to adjust the angle of the fisherman's line of vision.
Physics Classroom
The Physics Classroom: Refraction and the Ray Model of Light: Converging Lenses
An illustrated tutorial which takes students step-by-step through the process of drawing ray diagrams.
American Association of Physics Teachers
Com Padre Digital Library: Open Source Physics: Ejs Reflection and Refraction Between Taut Strings Model
In this simulation, two strings with different densities are held tautly as a wave pulses along them. Variables can be changed to alter the relative densities of the strings, as well as the type of wave pulse.
John Wiley & Sons
Wiley: Physical Geography: Animation: Wave Refraction
A brief animation that demonstrates the impact of waves on headlands and on bays explaining how waves shape sea arches and beaches.
Physics Classroom
The Physics Classroom: Refraction and the Ray Model of Light: Anatomy of a Lens
Illustrated diagrams in this tutorial help students understand the properties and functions of lenses.
Physics Classroom
The Physics Classroom: Refraction/ray Model of Light: Image Formation Revisited
Students take an in-depth look at the physics behind image formation.
Physics Classroom
The Physics Classroom: Refraction/ray Model of Light: The Anatomy of the Eye
An introduction to the human eye as it relates to the physics ray model of light and image formation.
Physics Classroom
The Physics Classroom: Refraction/ray Model of Light: Image Formation/detection
Students discover the four parts of the eye are the most instrumental in the task of producing images that are discernible by the brain.
Physics Classroom
The Physics Classroom: Refraction/ray Model of Light: Farsightedness/correction
A brief introduction to the physics side of farsightedness, and how lenses correct this vision defect.
Physics Classroom
The Physics Classroom: Refraction/ray Model of Light: Nearsightedness/correction
A brief introduction to the physics side of nearsightedness, and how lenses correct this vision defect.
University of Chicago
Telescopes at Yerkes Observatory / Virtual Tour
This site describes the difference between reflective and refractive telescopes and includes a virtual tour of Yerkes Observatory which houses the largest refracting telescope in the world.
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