Curated OER
Seasons in 3D: Student Exploration
In this seasons exploration learning exercise, students review vocabulary and answer prior knowledge questions, then use the Seasons in 3D Gizmo to complete exploration activities.
Physics Classroom
The Physics Classroom:refraction/ray Model of Light: Optical Density/light Speed
In order to understand refraction, students will explore the factors that affect the speed at which a light wave is transported through a medium.
CK-12 Foundation
Ck 12: Wave Speed Calculations
[Free Registration/Login may be required to access all resource tools.] Students investigate and analyze characteristics of waves, including velocity, and calculate the relationship between wave speed, frequency, and wavelength.
CK-12 Foundation
Ck 12: Light
[Free Registration/Login may be required to access all resource tools.] In the following tutorial students will describe the relationships between speed, wavelength, and frequency of light. They will understand the photoelectric effect...
University of New South Wales (Australia)
University of New South Wales: School of Physics: Physclips:the Nature of Light
Physiclips thoroughly presents mechanics concepts about light with animations and film clips. Learn about light and color, wavelengths, speed of light, electromagnetic waves, Young's experiment, and photons.
University of New South Wales (Australia)
University of New South Wales: Einstein Light
Einstein Light highlights the Theory of Special Relativity and related topics. Learn how Galileo, Maxwell, and Einstein contributed to our knowledge of relativity, electricity, magnetism, and time by watching fun, interactive modules.
Other
Is the Speed of Light Constant?
Using a question and answer format, this page discusses the question: "Is the Speed of Light Constant?" Discusses some of the history and experiments performed with light and the conclusions drawn from those findings.
Physics Classroom
The Physics Classroom: Refraction and Ray Model of Light: Direction of Bending
In this interactive physics tutorial about refraction, students investigate the topic of the direction of bending of a light wave.
University of Colorado
University of Colorado: Physics 2000: Speed of Light
Using an interesting and intriguing format, this page discusses the question of "How does one measure the speed of light." Explanation focuses on Galileo's and Roemer's efforts to obtain a reasonable value. Also discusses Heinrich...
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.
Science Buddies
Science Buddies: Using a Laser to Measure the Speed of Light in Jello
Think it takes expensive, sophisticated equipment to measure the speed of light? Think again. Outfit yourself with a simple handheld laser pointer, a protractor, and Jell-O, and you're ready to get started.
Science Buddies
Science Buddies: Measuring the Speed of 'Light' With a Microwave Oven
In this experiment, you will measure the speed of light using a microwave oven, some egg white, and a ruler. This short project proves to be an extremely interesting choice for a science lab, with pictures for illustration, and thorough...
PBS
Pbs Learning Media: Observing Refraction of Light
This video segment adapted from Shedding Light on Science illustrates how light changes speed, and thus direction, in a process known as refraction. Includes background reading and discussion questions. [2:05]
American Museum of Natural History
American Museum of Natural History: Ole Roemer and the Speed of Light
This resource provides a concise overview of the speed of light and the Ole Roemer, the first man to measure it.
Science Struck
Science Struck: How Does Light Travel Through Space and Other Media?
A detailed discussion of the nature of light, how it can travel through a vacuum, and how the speed of light is affected when light travels through a medium.
Project Britain
Primary Homework Help: Light and Shadows Quiz
This resource provides information about light and shadows. In addition, there is a short quiz that can be taken.
PBS
Pbs Learning Media: Diamonds: The Science Behind the Sparkle
This illustrated essay from the NOVA Web site explains why the atomic structure of a diamond slows down light and produces a sparkle more brilliant than from any other colorless substance.
Synopsys
Synopsys: Optics for Kids: What Is Light?
This site provides a short explanation of light, how it travels, and the speed in which it travels. Many other concepts related to optics can be found on this site as well.
Science4Fun
Science4 Fun: Light
What is light? Illustrated discussion of the speed of light, how we see colors, and how light helps us.
CK-12 Foundation
Ck 12: Physical Science: Refraction of Light
[Free Registration/Login may be required to access all resource tools.] Discusses refraction of light in matter and how light changes its speed and angle of refraction according to the type of medium it is travelling through.
Symmetry Magazine
Symmetry Magazine: Explain It in 60 Seconds: Cherenkov Light
Cherenkov light is explained here as the light emitted when a charged particle travels through matter faster than light would be able to. This would be slower, however, than the maximum speed of light, which occurs in a vacuum. "Explain...
Science Buddies
Science Buddies: Measuring Speed of Moving Objects With Stroboscopic Photography
A strobe light can illuminate an entire room in just tens of microseconds. Inexpensive strobe lights can flash up to 10 or 20 times per second. This project shows you how to use stroboscopic photography to analyze motion.
Society for Science and the Public
Science News for Students: Breaking the Universal Speed Limit
Describes research into whether neutrinos travel faster than the speed of light.
NASA
Nasa Space Place: What Is a Light Year?
Brief description of light-years with examples and images.
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