CH 30 Flashcards
(46 cards)
what is a geometric model
Earth is considered the center and everything else that revolves around it
what is a heliocentric model
statement that the moon revolves around the earth and the other planets revolve around the Sun
what is a extrasolar planets
planets in orbit around stars other than the sun
who discovered the geocentric model
Ptolemy
who discovered heliocentric model
Nicholas Copernicus
who discovered evidence to support Copernicus’s model by using a telescope
Galileo Galilei
who discovered that planets travel around the sun in ellipse, not a perfect spheres
Johannes Kepler
do planets travel at different speeds in their orbit
yes
average distance from Earth to sun
astronomical unit
what are the planets called that are similar to Earth
terrestrial planets
which planets are considered to be terrestrial planets
Mercury, Venus, Mars
what are gas planets known as
Jovian
what planets are considered to be Jovian planets
Jupiter, Saturn, Uranus, Neptune
what are the planets known as when their location is between the sun and asteroid belt
inner planets
which planets are inner planets
Mercury, Venus, Earth, Mars
what are the planets outside the asteroid belt known as
outer planets
what are the names of the outer planets
Jupiter, Saturn, Uranus, Neptune
What are the planets known as between the sun and earth’s orbit
inferior planets
what are the names of inferior planets
Mercury, Venus
what are the planets known as that are past the earth’s orbit
superior planets
what are the names of superior planets
Mars, Jupiter, Saturn, Uranus, Neptune
Mars
fourth planet from sun, the red planet
Venus
second from the sun
Earth
third planet from sun
