Origin of the Solar System and Its Theory Models
暂无描述。系统推荐的高质量记忆内容，适合每天坚持背诵学习。
卡片预览 (24 张)
IDENTIFY THE THEORY: The Sun and planets formed simultaneously from a cloud of dust and gas in a state of _______. Relies on rapid collisions and matter coalescing in different places due to turbulence.
protoplanet theory, violent disturbance
IDENTIFY THE THEORY: The Sun formed first; it used gravitational force to pull matter from a passing ____; this matter collapsed to form _____.
capture theory, protostar, protoplanets
IDENTIFY THE THEORY: A rotating nebula cooled and collapsed into ________; solid dust grains in the core slowed the Sun’s rotation due to friction making Sun rotate slower today than faster as it contracts.
modern laplacian theory, concentric rings
IDENTIFY THE THEORY: The system began as a slowly rotating nebula; planets originated from a 0.01 - 0.1 solar masses ______ of hot gas and dust.
solar nebula theory, dense disk
It is the collection of eight planets and their moons in orbit around the sun, together with smaller bodies in the form of asteroids, meteoroids, and comets.
solar system
The term “solar system” comes from the Latin words “____,” meaning ____, and “_____,” meaning ____.
sol, sun; sistema, system
the solar system sits roughly 27,000 light years from the galactic center settled in the _____
orion arm
a spiral shaped region filled with gas and dust
orion arm
A vast cloud of gas and dust began to gather in space triggered by a shockwave of ______.
formation of solar nebula, supernova
Over time, the cloud started to collapse _____ due to its own gravity.
contraction of solar nebula, inward
As the cloud collapsed, it spinned faster and flattened into a spinning disk shape. This effect is known as ____.
formation of accretion disk, conservation of angular momentum
At the center of the disk, a dense region formed due to accretion, heating up and glowing the ball of gases as nuclear fusion ignited.
formation of protostar
Small particles within the disk began to crash, collide, and clump together, forming larger objects called ______.
formation of planetesimals
Rocky materials in the inner solar system, known as planetesimals, grew and shaped through collisions and gravity. These planetesimals tolerates ____ conditions which made planets rocky in hot inner solar system.
formation of terrestrial planets, hot
A cratered, airless world with extreme temperature swings; the smallest planet.
mercury
Earth’s “toxic twin” with a thick CO2 atmosphere that makes it the hottest planet.
venus
Our home and the only planet with liquid surface water and life.
earth
natural satellite of earth
luna
The “Red Planet,” home to the largest volcanoes and canyons in the Solar System.
mars
natural satellites of mars
phobos and deimos
The largest object in the asteroid belt but a dwarf planet. A fossil of the early solar system.
ceres
A massive gas giant with a Great Red Spot storm larger than the Earth.
jupiter
It formed from the rapid accumulation of gas and ice due to strong gravity. These gases and ice condense in the cold outer system which made these planets _____.
formation of jovian planets, gaseous
famous natural satellites of jupiter
io, europa, ganymede, callisto