30.1 Vocab Flashcards
(20 cards)
A model of the solar system in which Earth is considered the center and everything revolves around it
Geocentric Model
A model of the solar system in which the moon revolves around Earth and the other planets revolve around the sun
Heliocentric Model
planets that orbit around other stars that aren’t the sun
Extrasolar Planet
Who developed the geocentric model?
Ptolemy
Who came up with the heliocentric model?
Nicholas Copernicus
Who discovered evidence to support Copernicus’ model by using a telescope?
Galileo Galilei
Who discovered that the planets move in an ellipse?
Johannes Kepler
Do planets travel at different speeds in their orbits?
Yes
What unit equals the average distance from Earth to the Sun, about 150 million km?
Astronomical Unit
Planets that are similar to the earth’s size and structure
Terrestrial Planets
What planets are known as terrestrial planets
Earth, Mercury, Venus & Mars
Giant planet are known as?
Jovian Planets
What are planets known as Jovian planets
Jupiter, Saturn, Uranus, & Neptune
What are the planets in between the Sun and asteroid belt known as?
Inner Planets
Which planets are inner planets?
Mars, Venus, Mercury, & Earth
What are planets that are beyond the asteroid belt known as?
Outer planets
Which planets are outer planets?
Jupiter, Saturn, Uranus, & Neptune
What are the planet between the Sun and the earth’s orbit known as?
Inferior Planets
What are the planets beyond Earth’s orbit known as?
Superior Planets
Planet known as superior planets
Mars, Jupiter, Saturn, Uranus & Neptune
