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Light and Optics for Kids

Light & Optics

Light is a form of electromagnetic radiation that is visible to the human eye. It behaves like a particle at times and like a wave at other times. Light moves at the constant speed of about 300,000 km/sec (186,000 mi/sec) when they are in a vacuum. The light from Sun takes about seven minutes to reach Earth. And, it takes over four years for light to get to the nearest star from Sun.
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The Science of Light
Grade: 5 - 12
Find out about the light that the Sun produces, and its effects on Earth's life forms. Learn how our eyes see the light, though only a small fraction of the light spectrum. It also demonstrates how a solar eclipse takes place, how light is reflected, and its use in lasers.
3:00
 

The Visible Spectrum
Grade: 7 - 12
Lesson on electromagnetic spectrum.
4:10
 

The Electromagnetic Spectrum
Grade: 7 - 12
Learn about visible light and electromagnetic spectrum. Visible light would be just 1 inch on an electromagnetic scale of over 2,000 miles!
2:15
 

Optics: Light at Work - part 1
Grade: 7 - 12
The video provides interesting information about light, optics, optical engineering and the science behind light. It explores real world applications and new technologies based on light in nanomedicine, space telescopes, invisibility, and solar energy.
9:00
 

Optics: Light at Work - part 2
Grade: 7 - 12
The video explores optics, and the world of light and its applications. A wide variety of young scientists share what they love about optics as they go about creating things that people need.
6:15
 

Waves
Grade: 7 - 12
Lesson on waves. It explains some of the key principles applying to waves.
3:50
 

Reflection
Grade: 7 - 12
Learn about reflection and the ray model of light.
5:15
 

Refraction
Grade: 7 - 12
Learn about refraction.
4:40
 

Quantum Mechanics: The Dual Nature of Light
Grade: 7 - 12
A Fermilab physicist explains the dual nature of light as waves and photons, and the principle behind photoelectric effect.
8:55
 

Double Slit Experiment
Grade: 7 - 12
Demonstration of double slit experiment. The wave-like properties of light were demonstrated by this famous experiment first performed by Thomas Young in the early 19th century.
5:05
 

Measuring Speed of Light
Grade: 7 - 12
Light is fast. Really really fast. About 186,000 miles a second. Learn how scientists go about measuring the speed of light.
4:00
 

Physics Lesson - Reflection
Grade: 7 - 12
Physics lesson on Reflection.
4:50
 

Physics Lesson - The Law of Reflection
Grade: 7 - 12
Physics lesson on the Law of Reflection.
2:15
 

Physics Lesson - Image Formation
Grade: 7 - 12
Learn how an image forms on a plane mirror.
4:45
 

Physics Lesson - Refraction
Grade: 7 - 12
Physics lesson on Refraction.
7:10
 

Physics Lesson - Index of Refraction, part 1
Grade: 7 - 12
Learn about the Index of Refraction.
4:45
 

Physics Lesson - Index of Refraction, part 2
Grade: 7 - 12
Learn to calculate the Index of Refraction.
2:25
 

Physics Lesson - Snell's Law
Grade: 7 - 12
Physics lesson on Snell's Law.
3:40
 

Physics Lesson - Lenses, part 1
Grade: 7 - 12
Physics lesson on Lenses.
1:50
 

Physics Lesson - Lenses, part 2
Grade: 7 - 12
Learn more about Lenses.
2:45
 

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