Early views of the universe

Which is not true about Aristotle's astronomical beliefs?

• He suggested that Earth revolves around the sun

• He supported the idea of a geocentric universe

• He believed that the world is a sphere

• He believed in the celestial sphere

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

• Eclipse

• Lunar phase.

• planetary motion

• retrograde motion.

Which is not true about Galileo?

• He discovered the sunspot

• He invented the first telescope

• He observed the phases of Venus

• He discovered the moon of jupiter

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

• Gravitational attraction of the sun and the planet

• Distance among the semimajors axis

• size of the planet

• mass of the planet

According to Galileo's discovery, which of the following does not surround Jupiter?

• Ganymede

• fixed stars

• Europa

• Callisto

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

• violent

• natural

• celestial

• alteration

Who was the first astronomer to suggest that the Earth rotate on it's own axis?

• Brahe

• Aristotle

• Eudoxus

• Aristarchus

What is the effect of the precession of the equinoxes?

• The apparent motion of the celestial bodies

• The apparent shifting of the stars.

• the changes of the solstices

• the phases of the moon.

Who uses Brahe's data to come up with his own laws of planetary motion? A. B. C. D.

• Nicolaus Copernicus

• King Frederick II

• Galileo

• Johannes Kepler

What is the biggest contribution of Tycho Brahe to astronomy?

• The accurate observation of stars and planet.

• The measurement of Earth's circumference

• Heliocentric theory

• the phases of Venus