Language: English

Get these flashcards, study & pass exams. For free! Even on iPhone/Android!

Science Vocab and Review Questions (27 Cards)

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

Card tags:
All cards (27)
no tags