1/37
Looks like no tags are added yet.
Name | Mastery | Learn | Test | Matching | Spaced |
---|
No study sessions yet.
consists of the sun, planets, their moons, and a variety of smaller objects
solar system
what is at the center of the solar system with other objects orbiting around it
the sun
what holds the objects in their orbit around it
force of gravity
one (__) is the average distance measured from the center of the sun to the center of earth
astronomical unit
how many AU does the entire solar system extend to
100,000 AU
a gaseous body much larger than anything else in our solar system
sun
how long is the sun expected to burn for
5 billion years
is round; orbits the sun; has cleared its orbit of other objects
planet
describe the 4 inner planets
closer to the sun, small, made of rock and metal
describe the 4 outer planets
farther from the sun, very large; made mostly of gas or liquid
the time it takes for one day (spin)
rotate
an object that orbits the sun; has enough gravity to be spherical, has not cleared its orbit
dwarf planet
a natural satellite that orbits a planet
moon
what is between a planet and its moon that keeps the moon in its orbit
force of gravity
small, mostly rocky bodies, found in an area between the orbits of mars and jupiter
asteroids
chunks of rock or dust smaller than asterioids
meteroids
a streak of light made when a meteoroid’s friction creates heat
meteor
a meteoroid that passes through te atmosphere and has hit Earth’s surface
meteorite
loose balls of ice and rock, have very long and narrow orbits
comets
what do comets develop as they orbit the sun
tails
describe the structure of the sun
no solid surface, completely gaseous; its mass is hydrogen and helium
what is hydrogen and helium in the form of in the structure of the sun
plasma
which state of matter is plasma
fourth state
very hot fluid-like gas consisting of electrically charged particles
plasma
what does the sun’s interior include (in order)
1- convection zone, 2- radiative zone, 3- the core
what is the sun’s atmosphere made out of
hydrogen and helium
what are the three main layers of the sun’s atmosphere
photosphere, chromosphere, and corona
which main layer of sun’s atmosphere is the inner layer
photosphere
which layer of the sun’s atmosphere is the middle layer
chromosphere
which layer of the sun’s atmosphere is the outer layer and looks like a white halo around the sun
corona
which features of the sun are the most visible
sunspots, prominences, and solar flares
what are sunspots
dark areas on the sun’s surface
sunspots are the areas of plasma (cooler/hotter) than the plasma around them
cooler
what does cooler plasma give off less of
less light
what does changing positions of sunspots indicate
the sun rotating
huge loops of plasma that are polarized
prominences
loops in sunspot regions connect, releasing large amount of magnetic energy; this energy heats plasma millions of degrees causing it to erupt into space
solar flares
what are eruptions called
solar flares