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Understanding Light: Properties, Behavior, and the Electromagnetic Spectrum

Explore the fascinating world of light, its properties, and behaviors, from the electromagnetic spectrum to the colors of the spectrum identified by physicist Roy G. Biv. Learn how light travels in straight lines and its interactions with various materials, including transparent, opaque, and translucent substances. Discover the principles of reflection and refraction, including the law of reflection, and the concept of chromatic aberration. Dive into how light shapes our perception of the environment and the essential role it plays in phenomena like rainbows and the greenhouse effect.

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Understanding Light: Properties, Behavior, and the Electromagnetic Spectrum

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Presentation Transcript

  1. Let the light shine • Sources of Light • Luminous • Produces light • Incandescent • Light due to high temperatures • Electromagnetic Spectrum • A range of electromagnetic radiation ranging from very short wavelengths to very long wavelengths Long waves Short waves Low energy High energy Radio Visible X-rays

  2. Let the light shine • Remember this from the well know Physicist: Roy G. Biv • Colors of the spectrum • Red • Orange • Yellow • Green • Blue • Indigo • Violet • Red = Short word = Long wave • Violet = Long word = Short wave

  3. Let the light shine • Path of light • Always in a straight line • Why can we see when in the shade of a tree ???? • Transparent • Light passes through • Opaque • Reflects & absorbs light • Translucent • Light can pass through • Speed of Light • 186,000 mi./sec.

  4. Let the light shine • Reflection & Refraction: Which is which • Law of Reflection & Refraction • Angle of incidence is equal to the angle of . . . . • Reflection • We see something because light “bounces” reflects off of the object • Reflecting surfaces • Concave (in) • Convex (out) • First surface mirror

  5. Let the light shine • Refraction • Light passing through but is bent as it passes through the medium • Refraction is due to a change in the velocity of light • Chromatic aberration

  6. Let the light shine • A System of Lenses • Camera and The Eye • The Rainbow • Conditions • A process of refraction & reflection • Greenhouse Effect

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