Astronomy Unit 1

What is thought to be one of the main purposes of building Stonehenge?

• to predict the future

• to predict celestial events and seasons

• to create a lasting memorial to the gods

• to confound and confuse future historians

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The ability to predict seasons & celestial events were very important to the ancients because

• otherwise they would not know the time of day.

• there was no other way to figure out planetary movements.

• it allowed for crops to be planted and to keep track of time

• the phases of the Moon was very important to know.

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Retrograde motion was adequately explained by the geocentric theory and by Ptolemy's model.

• True

• False

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The "backward loops" that most planets would appear to do once a year is called

• planetary motion.

• retrograde motion.

• prograde motion.

• a mystery.

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NGSS.MS-PS2-4

The geocentric model of the universe was basically accepted for over one thousand years.

• True

• False

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NGSS.MS-ESS1-1

The Ancient Greeks considered the _____ a perfect shape and had to represent the heavens.

• parabola

• the Earth

• circle

• Moon to be

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Aristarchus (of ancient Greece) correctly predicted the _______ theory of the Universe.

• geocentric

• heliocentric

• earth-centered

• sun-centered

Heliocentric theory has the ____ revolving around the Sun, with only the ____ orbiting Earth.

• Moon, planets

• Moon, Sun

• stars, Moon

• planets, Moon

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NGSS.MS-ESS1-1

Why did Copernicus wait to publish his book on heliocentricity?

• there wasn't enough scientific data

• he wasn't sure if his theory was correct

• he was fearful of the repercussions

• the theory was originally Aristarchus' idea

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Astrology can be defined as

• the idea that the positions of the stars and planets at the time of our birth determine our personalities and influence our future.

• the scientific study of celestial objects such as planets, moons and stars.

• the scientific study of astrological phenomena such as the Big Bang Theory.

• the observation of the heavens using telescopes and other instruments.