Heliocentric Theory
Geocentric Thoery
Early Astronomers
Revolution & Rotation
It's All Tilted
100
The meaning of heliocentric
What is the sun is at the center of the solar system?
100
The main crystal spheres proposed in the geocentric theory.
What are deferents?
100
The age that brought about a rebirth of interest in culture, including science.
What is the Renaissance?
100
The force that holds planets in their orbits?
What is gravity?
100
The angle between the earth's axis and a line perpendicular to the plane of its orbit.
What is 23 1/2 degrees?
200
The man who played a major role in the development of the heliocentric theory.
Who is Copernicus?
200
The object located at the center of the universe in the geocentric theory.
What is the earth?
200
The first person to use a telescope for astronomy.
Who is Galileo?
200
The earth's movement around the sun.
What is revolution?
200
The tilt of the Northern Hemisphere during the summer.
What is toward the sun?
300
A modification to the geocentric theory that accounts for the temporary backward movement of planets.
What is epicycle?
300
The Christian astronomer who formulated the three laws of planetary motion.
Who is Kepler?
300
The spin of the earth on its axis.
What is rotation?
300
The location on the earth where a Foucault pendulum would not be deflected.
What is at the equator?
400
The day on which the sun's overhead noon position appears to be directly over the equator.
What is equinox?
400
The orbit of a planet that did not orbit with the earth exactly at the center of its circular path.
What is eccentric?
400
The English mathematician and scientist who formulated the law of universal gravitation.
Who is Sir Isaac Newtom?
400
The object the earth revolves around
What is the sun?
400
The location of the Tropic of Cancer.
What is 23 1/2 degrees north of the equator?
500
Kepler's major contribution to the Copernican theory.
What is elliptical orbits?
500
The German astronomer who demonstrated that the orbits of the planets have elliptical shapes.
Who is Johannes Kepler?
500
The astronomer known for very accurate observations.
Who is Tycho Brahe?
500
The most recent evidence that established that the earth moves, not the sun.
What is direct observation of astronauts from the moon?
500
The day on which a portion of the earth experiences the most daylight.
What is summer solstice?
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