Download Solar System: An In-depth Exploration of Planets, Models, and Historical Figures and more Quizzes Physics in PDF only on Docsity! TERM 1 solar system DEFINITION 1 a complex system of moving masses held together by gravitational forces TERM 2 the Sun DEFINITION 2 at the center of the solar system TERM 3 8 planets, over 160 satellites, asteroids, comets, meteroids, dust, gases, and solar wind DEFINITION 3 everything that is revolving around the Sun TERM 4 geocentric model DEFINITION 4 the Earth-centered model TERM 5 geocentric and heliocentric models DEFINITION 5 two historical theories of the solar system TERM 6 Prolemy DEFINITION 6 developed the geocentric model TERM 7 geocentric model DEFINITION 7 the Sun, moon, planets, and stars were thought to revolve around the Earth TERM 8 heliocentric model DEFINITION 8 Sun-centered model of the solar system TERM 9 Nicolaus Copernicus DEFINITION 9 developed the heliocentric model TERM 10 Kepler's laws of planetary motion DEFINITION 10 what Johannes Kepler formulated in the 1600s TERM 21 earth DEFINITION 21 what the Latin word "terra" means TERM 22 Jupiter, Saturn, Uranus, and Neptune DEFINITION 22 the Jovian planets TERM 23 rings DEFINITION 23 what all Jovian planets have TERM 24 Roman god Jove DEFINITION 24 who the Jovian planets are named after TERM 25 My Very Excellent Mother Just Sent Us Nachos DEFINITION 25 mnemonic for listing the planets TERM 26 Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune DEFINITION 26 list the planets in order TERM 27 counterclockwise (prograde) DEFINITION 27 direction all planets revolve around the Sun in TERM 28 prograde motion DEFINITION 28 the other name for counterclockwise TERM 29 counterclockwise DEFINITION 29 direction all planets except for Venus, Uranus, and Pluto rotate TERM 30 retrograde motion DEFINITION 30 the other name for clockwise TERM 31 Venus, Uranus, and Pluto DEFINITION 31 the retrograde motion planets TERM 32 nebular theory DEFINITION 32 modern theory that states the Sun and planets formed together from a cloud of dust and gas TERM 33 nebula DEFINITION 33 a cloud of dust and gas TERM 34 protosun DEFINITION 34 the hot, central portion of the flat nebular disk that became the Sun when thermonuclear fusion ignited it TERM 35 plasma state DEFINITION 35 phase of matter consisting of ions and electrons rather than atoms
