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Read the questions carefully and choose the best answer.
This activity contains 30 questions.
A geocentric model holds that Earth is the center of the universe.
Aristarchus professed a Sun-centered or ___________ view of the universe.
Eratosthenes used the angles of the noonday Sun in two Egyptian cities to calculate the size of Earth.
Probably the greatest of the early Greek astronomers was Tycho Brahe, best known for his star catalog.
The apparent westward movement of a planet against the background of stars is called
The early Greeks believed that there were nine wandering heavenly bodies.
This early civilization recorded the appearance of Halley's comet for at least 10 centuries.
Who was the ancient Greek who developed a geocentric model of the universe explaining the observable motions of the planets?
Any variance in the orbit of a body from its predicted path is called precession.
Copernicus was the first astronomer to use a telescope.
Gravity is directly proportional to mass.
The farther away a star is, the greater its parallax will be.
The shape of a planet's orbit is
Tycho Brahe is best known for
designing and using the first telescope
predicting a solar eclipse
the laws of planetary motion
proposing a Sun-centered Universe
explaining the principle of stellar parallax
Which of the following discoveries is
credited to Galileo Galilei?
planets are circular disks, not points of light
Venus has phases just like the Moon
four of Jupiter's moons
characteristics of the Sun, including sunspots
Galileo was burned at the stake during the Inquisition for proving the Copernican theory.
In his model, Copernicus used circles to represent the orbits of the planets.
Kepler wrote about planetary motions in his work
"The Harmony of the Worlds."
The apparent shift in the position of a star caused by Earth's motion is called
The first modern astronomer to propose a Sun-centered solar system was
88 constellations divide the sky into recognizable units.
Another name for the star Polaris is
The right ascension is usually measured in hours.
The angular distance measured eastward along the celestial equator from the position of the vernal equinox describes the
none of the above
The most visible stars in a constellation are generally named in order of their ____________ by the letters of the Greek alphabet.
The apparent path of the Sun against the backdrop of the celestial sphere is called
A(n) ____________ eclipse occurs when the Moon casts its shadow on Earth.
A solar eclipse cannot be seen with every new Moon because
solar eclipses occur during the full Moon phase
the Moon is not part of a solar eclipse
they occur at night
the Moon's orbit is inclined approximately 5 degrees
Half of the illuminated disk of the Moon is visible from Earth during the _________ phase of the Moon.
The cycle of the Moon through its phases as seen from Earth is called the sidereal month.
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