Ancient Astronomy

The ____________ refers to an imaginary sphere of heavenly objects that seems to center on the observer.

• Constellation

• Celestial Sphere

• North Pole

• South Pole

The first person to use a telescope to study the sky was __________.

• Ptolemy

• Kepler

• Galileo

• Aristotle

The two most famous believers of the geocentric model of the universe were:

• Orville and Wilbur Wright

• Kepler and Tycho Brahe

• Copernicus and Galileo

• Aristotle and Ptolemy

What did Galileo discover about the surface of the moon when he saw it through his telescope?

• It had craters and mountains

• It was smooth

• It was all water

• It was made of cheese

How long does it take the Sun to revolve around the Celestial Sphere?

• 365.25 seconds

• 365.25 minutes

• 365.25 days

• 365.25 weeks

Kepler's 1st Law of Planetary Motion states that each planet's path around the Sun is in the shape of a/an:

• Ellipse

• Ecliptic

• Circle

• Rhombus

Tags

NGSS.MS-ESS1-2

Ptolemy hypothesized that planets travel in circular orbits centered around the Earth. He called these circular orbits __________.

• Ellipses

• Epicenters

• Epicycles

• Epic Cycles

While observing the planet Venus through his telescope, Galileo observed that it changed size and shape over a period of months. What conclusion did this help him come to?

• The Earth is round

• The Sun goes around the Earth

• Venus goes around the Sun

• Venus has four moons

Geocentric models place the _______ at the center of the universe?

• Sun

• Moon

• Earth

• Stars

Copernicus theorized that the stars do not actually move across the sky each night. That is an illusion created by what?

• Parallax

• The Zodiac

• The Sun revolving around the Earth

• The rotation of the earth