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Astronomy Chapter 5

Astronomy

QuestionAnswer
joule measurement of energy flow - 1 watt = 1 joule/s
power rate of energy flow
spectrum a prism split into the rainbow of light
emission light that is emitted
absorption light that is absorbed
transmission light that is transmitted
reflection light that is reflected
transparent materials that transmit light
opaque material that absorb light
wavelength distance from one peak to the next
frequency number of peaks passing by any point each second
light waves vibrations of both electric and magnetic fields
photons individual pieces of light
electromagnetic spectrum complete spectrum of light
electromagnetic radiation name for light itself
infrared light with wavelengths longer that red light
radio waves longest-wavelength light
microwaves between infrared and radio waves that range from micrometers to millimeters
ultraviolet light with wavelength shorter that blue light
x-rays light with shorter wavelength than ultraviolet
gamma rays light with the shortest wavelengths
atomic number number of protons in a nucleus
atomic mass number combined number of protons and neutrons in an atom
ionization process of stripping electrons from atoms
Created by: sgw005
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