Earth Science 27.2

A Greek philosopher who first proposed a geocentric model of the solar system.

• Tycho Brahe

• Nicholas Copernicus

• Aristotle

• Ptolemy

A Greek philosopher who modified the geocentric model by adding epicycles to it.

• Tycho Brahe

• Nicholas Copernicus

• Aristotle

• Ptolemy

A Polish astronomer who proposed a heliocentric model of the solar system.

• Tycho Brahe

• Nicholas Copernicus

• Aristotle

• Ptolemy

Geocentric Model believes that

• Earth orbits the sun once a year

• Planets and sun circled the earth

• Earth and planets travel about the sun in elliptical orbits

Developed the Law of Universal Gravitation

• Newton

• Ptolemy

• Kepler

• Galilei

Force of attraction that occurs between masses and draws objects toward each other

• Planets

• geocentric model

• elliptical model

• Gravity

Astronomer who was from Poland

• Galilei

• Copernicus

• Kepler

• Ptomely

Invented the telescope

• Ptomley

• Kepler

• Newton

• Galilei

Discovered four moons revolving around Jupiter.

• Galilei

• Newton

• Kepler

• Copernicus

A German astronomer, (1571-1630) who took observations about planets and translated them into three mathematical laws of planetary motion.

• Tycho Brahe

• Galileo Galilei

• Johannes Kepler

• Issac Newton