Match the following vocabulary words with their definitions. 1 .
heliocentric theory
Force or pull in the universe that makes heavenly bodies tend to move toward each other
2 .
eyepiece
Primary light-gathering lens or mirror on an optical instrument
3 .
reflecting telescope
Telescope in which a lens gathers and focuses light and the resulting image is magnified by the eyepiece
4 .
objective lens
Having or representing the sun as the center
5 .
refracting telescope
Lens, or set of lenses, in a telescope or microscope that is nearest the eye of the user
6 .
ocular
Eyepiece of a telescope or microscope
7 .
gravitation
Telescope in which a mirror gathers and focuses light and the resulting image is magnified by the eyepiece