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All main topics / Science / Light

Science Vocab and Review Questions (27 Cards)

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Infrared light
a type of electromagnetic wave with a wavelength between 1mm and 700 nm
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visible light
a type of electromagnetic wave with a wavelength between 700 and 400 nm
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Dispersion
describes the variation in the refractive indices of different colors of light
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Electromagnetic Wave
a wave of oscillating electric and magnetic fields that moves at the speed of light
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Electromagnetic Spectrum
the entire range of electromagnetic waves, including all possible frequencies
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Radio Wave
the lowest frequency of electromagnetic waves with a wavelength greater than tens of centimeters
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Microwave
a type of electromagnetic wave with a wavelength 30 cm and 1 mm
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Ray diagram
a diagram that uses lines and arrows to show how light rays travel through and optical system
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X-Ray
high frequency waves that are used extensively in medical and manufacturing applications
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White Light
the equal combination of all the colors of light
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Optics
the science and technology of the behavior of light
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Light Ray
an imaginary line that represents a thin beam of light
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Converging lens
A lens that bends light rays so they come together
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Diverging Lens
A lens that bends light rays so they spread apart
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Prism
An optical device used to refract and reflect light in precise ways
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Transparent
Describes a material that allows light to pass through things with little or no scattering
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Translucent
describes a material that allows some light to pass through and scatter
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Incident Ray
a light ray that strikes a surface
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law of reflection
when light ray reflects off a surface, the angle of incidence is equal to the angle of reflection
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Ultraviolet
electromagnetic waves with a wavelength shorter than visible light but longer than X rays; can't be seen by the human eye
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Intensity
a measure of the amount of light energy per second falling on a surface
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Index of Refraction
a ratio that gives a measure of a materials ability to bend light
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Gamma Ray
electromagnetic waves with wavelengths less that 0.001 nm; high energy photons emitted spontaneously in nuclear reactions
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Understand how light is affected by matter
If something is in the way of light, light refracts
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Learn the relationship among the frequency, energy and wavelength of light
frequency and light use each other for light waves
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Identify the different kinds of electromagnetic waves
microwaves, ultraviolet waves, visible light
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learn how the speed of light changes in different materials
It speeds up in water and slows down in air
Flashcard set info:
Author: cutiepie1842
Main topic: Science
Topic: Light
Published: 27.05.2010
Tags: science, light, vocab, review questions
 
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