Unit 10 Lesson 39.2 Copernicus and Kepler

What was the geocentric theory?

• The sun is at the center of the universe
• The planets travel in ovals around the sun
• The Earth is at the center of the universe
• The stars are at the center of the universe

What did Aristotle teach about the geocentric theory?

• The stars are at the center of the universe
• The sun is at the center of the universe
• The Earth is flat
• All heavenly bodies move in circles

What did Ptolemy create to account for the observed movements of planets?

• The geocentric theory
• The theory of evolution
• The heliocentric theory
• The theory of relativity

What did Copernicus propose in his heliocentric theory?

• The planets travel in ovals around the Earth
• The Earth is at the center of the universe
• The sun is at the center of the universe
• The stars are at the center of the universe

Why did Copernicus believe his theory was simpler and more satisfying than Ptolemy's?

• Because it was more complicated
• Because it accounted for the observed movements of planets
• Because it was supported by the Bible
• Because it was taught by Aristotle

What was the name of Copernicus's book?

• The Origin of Species
• The Principia
• The Bible
• On the Revolutions of the Heavenly Spheres

Why was Copernicus's book attacked by some Church officials and scientists?

• Because it was too long
• Because it was too short
• Because it was too complicated
• Because it contradicted the Bible

What did Kepler realize about the orbits of the planets?

• They are triangles
• They are circles
• They are squares
• They are ovals

What did Kepler write to describe the planets' movements around the sun?

• A novel
• A poem
• Precise mathematical laws
• A play

What did Kepler's laws coincide with?

• Ptolemy's theory
• Aristotle's teachings
• The Bible
• Actual observations