Chapter 5 Review

What is the main difference between the Geocentric and Heliocentric models of the solar system?

• The Geocentric model places Earth at the center, while the Heliocentric model places the Sun at the center.

• Both models place the Sun at the center but in different positions.

• The Geocentric model places the Sun at the center, while the Heliocentric model places Earth at the center.

• The Geocentric model includes only the Moon, while the Heliocentric model includes all planets.

Who was the ancient philosopher most associated with the Geocentric model?

• Nicolaus Copernicus

• Claudius Ptolemy

• Johannes Kepler

• Galileo Galilei

Which astronomer proposed the Heliocentric model of the solar system in the 16th century?

• Isaac Newton

• Nicolaus Copernicus

• Aristotle

• Tycho Brahe

What was one major observation made by Galileo that supported the Heliocentric model?

• The discovery of Neptune

• The retrograde motion of Mars

• The moons of Jupiter orbiting Jupiter, not Earth

• The elliptical orbits of planets

Why was the Geocentric model widely accepted in ancient times?

• The Bible explicitly stated Earth was the center.

• Aristotle and Ptolemy wrote about it extensively.

• It appeared that everything in the sky moved around Earth.

• The Sun was too small to be considered the center.

Who calculated that the orbits of each planet are elliptical?

• Isaac Newton

• Galileo Galilei

• Aristarchus

• Johannes Kepler

What is at the center of our solar system?

• Earth

• The Moon

• The Sun

• Jupiter

How many planets are there in our solar system?

• 9

• 7

• 8

• 10

Which of these is NOT a dwarf planet?

• Pluto

• Ceres

• Europa

• Eris

What is the largest planet in our solar system?

• Earth

• Saturn

• Neptune

• Jupiter