Vicab 2 Flashcards

(36 cards)

1
Q

Gravity

A

The force that attracts a body toward the center of the earth

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2
Q

Tide

A

Tide is the cycle of rising and falling of the surface of the bodies of water.

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3
Q

Waxing

A

A waxing moon is the one that is getting larger each night.

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4
Q

Waning

A

It gets smaller every night

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5
Q

Gibbous moon

A

Between a half moon but less than a full moon

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6
Q

Crescent moon

A

It is less than half illuminated

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7
Q

Full moon

A

The whole moon is illuminated

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8
Q

New moon

A

The Whole moon is dark

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9
Q

Quarter moon

A

The moon is one half illuminated

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10
Q

Perihelion

A

The point in the orbit of a planet which is closer to the sun

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11
Q

Aphelion

A

The point in the orbit of a planet which is furthest away from the sun

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12
Q

Heliocentric

A

Representing the sun as the center as the accepted astronomical model of the solar system

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13
Q

Geocentric

A

Having or representing the earth as the center as in former astronomical systems

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14
Q

Meteorite

A

A meteor that survives its passage through the earths atmosphere

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15
Q

Meteor

A

A small body of matter from outer space

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16
Q

Comet

A

A celestial object consisting of a nucleus of ice and dust

17
Q

Asteroid

A

A small rocky body orbiting the sun

18
Q

Gas giant

A

A large planet of relatively low density

19
Q

Terrestrial

A

A rocky planet is a planet that is composed primarily of silicate rocks or metal

20
Q

Ellipse

A

A regular oval shape traced by a point moving in a plane so that the sum of its distance from two another points

21
Q

Astronomical units

A

A unit of measurement equal to 149.6 kilometers the man distance from the center of the earth

22
Q

Penumbra

A

The partially shaded outer region of the shadow cast by an opaque object

23
Q

Umbra

A

The fully shaded inner region

24
Q

Eclipse

A

An obscuring light from one celestial body by the passage of another

25
Mare
Mares are large,dark,basaltic plains on earths moon
26
Solstice
When the sun reaches its highest or lowest point in the sky at moon
27
Equinox
The sun crosses the celestial equator when day and night are equal
28
Season
One of the four periods of the year (spring,summer,autumn, and winter)
29
Revelation
The movement of one object around a center or another object
30
Rotation
The process or act of turning or circling something
31
Impact crater
A crater on a planet or the moon caused by the impact of a meteorite or another object
32
Satellite
An artificial body placed in orbit around the earth or the moon
33
Universe
All existing matter and space considered as a whole
34
Galaxy
A system of millions or billions of stars
35
Solar system
The collection of eight planets and their moons in orbit around the sun
36
Orbit
The curved path of a celestial object or spacecraft