Home
Explore
Exams
Search for anything
Login
Get started
Home
Science
Astronomy
Origins of the Universe
Earth, Sun, Moon System Vocabulary
4.4
(7)
Rate it
Learn
Practice Test
Spaced Repetition
Match
Flashcards
Card Sorting
1/17
Earn XP
Description and Tags
Astronomy
Origins of the Universe
8th
Add tags
Study Analytics
All
Learn
Practice Test
Matching
Spaced Repetition
Name
Mastery
Learn
Test
Matching
Spaced
No study sessions yet.
18 Terms
View all (18)
Star these 18
1
New cards
Axis
An imaginary line that passes through a plant’s center and the north and south poles, about which the planet rotates.
2
New cards
Rotation
The spinning motion of a planet on its axis.
3
New cards
Revolution
The movement of an object around another object.
4
New cards
Sun
A large gaseous body at the center of the solar system.
5
New cards
Moon
A natural satellite that orbits a planet.
6
New cards
Orbit
The path of an object as it revolves around another object in space.
7
New cards
Eclipse
The partial or total blocking of one object in space by another.
8
New cards
Penumbra
The part of a shadow surrounding the darkest part.
9
New cards
Umbra
The darkest part of a shadow.
10
New cards
Geocentric
Term describing a model of the universe in which Earth is at the center of the revolving planets and stars.
11
New cards
Heliocentric
Term describing a model of the solar system in which the Earth and other planets revolve around the Sun.
12
New cards
Equinox
Either of the two days of the year on which neither hemisphere is tilted toward or away from the Sun.
13
New cards
Solstice
Either of the two days of the year on which the sun reaches the greatest distance north or south of the equator.
14
New cards
Tide
The periodic rise and fall of the level of water in the ocean.
15
New cards
Spring Tide
The tide with the greatest difference between consecutive lows and highs.
16
New cards
Neap Tide
The tide with the least difference between consecutive lows and highs.
17
New cards
Phase
One of the different apparent shapes of the moon as seen from the Earth.
18
New cards
Law of Universal Gravitation
The scientific law that states that every object in the universe attracts every other object.