Historical Astronomers

__________________ is the scientific study of the universe.

• Heliocentric

• Geocentric

• Astronomy

• Aristotle

___________ Theory is Ptolemy's model of the universe with Earth in the center- planets & sun orbit the Earth

• Heliocentric

• Geocentric

• Copernicus

• Astronomy

Claudius _________________ was a Greek Astronomer that lived in Rome around 100 AD.

• Coperincus

• Kepler

• Newton

• Ptolemy

The Geocentric Theory was not challenged for over _______ years - until Copernicus' theory.

• 13

• 130

• 13000

• 1300

Nicholas __________ was born in 1473 in Poland and studied, among other subjects, mathematics and astronomy.

• Copernicus

• Newton

• Kepler

• Ptolemy

__________________ Theory is Copernicus' Model of the universe with the Sun in the center & all the planets orbit it.

• Geocentric

• Heliocentric

• Newton

• Big Bang

Johannes ____________ , German astronomer who discovered three major laws of planetary motion & lived 1571 - 1642

• Newton

• Copernicus

• Ptolemy

• Kepler

Kepler proposed that the planets orbited the sun in an ___________ orbit instead of a circular orbit.

• Irregular

• Circular

• Elliptical

• Elongated

True or False.

Kepler's law said a planet moves quickly when it is closer to the Sun.

• True

• False

_________ , an Italian astronomer, mathematician, physicist, philosopher & professor who lived from 1564 - 1642.

• Newton

• Kepler

• Galileo

• Copernicus