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Science Vocab 4
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orbit
path an object in space fallows as it revolves around another object
galaxy
million or billions of stars held together in a group by their own gravity
universe
space and all the matter and energy in it
electromagnetic radiation
energy that travels across distances as certain types of waves
electromagnetic spectrum
radiation from a source separated into a range of wavelengths; the range of colors that appear in a beam of visible light
wavelength
the distance between one peak and the next peak in a wave
radio telescope
type of telescope that has a curved metal surface, called a dish, that gathers radio waves and focuses them onto an antenna
reflecting telescope
type of telescope that has a curved mirror that gathers light and reflects the image off a second mirror to the eyepiece
refracting telescope
type of telescope that has an objective lens that gathers light and focuses it to the end of the tube where the eyepiece is located
solar system
the sun and its family of orbiting planets, moons, and other objects
Author
jsn_man
ID
58565
Card Set
Science Vocab 4
Description
Vocab List #4
Updated
2011-01-07T21:21:43Z
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