What kind of terrestrial motion is portrayed by a free-falling object in accordance to Aristotle’s belief?

• alteration             

• celestial

• natural

• violent

Which is an effect of the precession of the equinoxes?

• the phases of the moon

• the changes in solstice

• the apparent shifting in the stars

• the apparent motion of the celestial bodies

Which is NOT an argument by the Ancient Greeks about the Sphericity of Earth?

• Earth’s shadow on the moon is always round

• The sun rises in the east and sets down in the west

• Explorers going south see southern constellations rise above the horizon.

• Every portion on Earth has a tendency to be compressed and form a sphere.

Which is NOT TRUE about Aristotle’s astronomical beliefs?

• He believed in celestial spheres

• He believed that the world is a sphere

• He supported the idea of geocentric universe

• He suggested that Earth revolves around the Sun

Who was the first astronomer to suggest that Earth rotates on its axis?

• Aristarchus        

• Aristotle

• Brahe

• Eudoxus

What phenomenon in the universe did ancient astronomers explain through epicycles?

• eclipse

• lunar phases       

• planetary transits

• retrograde motion

Which phenomenon was known only with the aid of telescope?

• eclipse

• solstice

• sunspot

• supernova

It is an astronomical model in which the Earth and planets revolve around the Sun

• Eclipse

• Geocentrism

• Heliocentrism    

• Solstice

What is the biggest contribution of Tyco Brahe to astronomy?

• the phases of Venus

• the heliocentric universe

• the measurement of the Earth’s circumference

• the accurate information of stars and planets

According to Kepler’s third law of planetary motion, to which quantity is the period of revolution of a planet related?

• size of the planet

•   mass of the planet

• distance along the semimajor axis

• gravitational attraction of  the sun and the planet