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Bioms > Space > Flashcards

Space Flashcards

1
Q

Orbit

A

The circular path of an object as it revolves around the solar system

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2
Q

Solar system

A

A system of objects that revolve around a star

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3
Q

Galaxy

A

A group of solar systems , dust , and gas held together by gravity

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4
Q

Universe

A

Everything that exists in on and around the earth

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5
Q

Satellite

A

A natural or artificial object that revolves around an other object in space

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6
Q

Impact crater

A

A crater on a planet or moon caused by the impact of a meteorite

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7
Q

Rotation

A

The spring of a celestial body such as a planet around an axis

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8
Q

the orbiting of an object around another object

A

Revolution

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9
Q

Season

A

A period of year determined by the position of earth as it revolves

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10
Q

Equlox

A

The time or date at which the sun crosses the eelestial

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11
Q

Solstice

A

The twice a year occurred during which the sun appears at the highest point in the sky

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12
Q

Mare

A

Large dark basaltic plains

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13
Q

Eclipse

A

An event where by one astromical body passes another body between tow astronomical bodies

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14
Q

Umbra

A

The fully shaded inner region of a shadow

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15
Q

Penumbra

A

The dartially shaded outer region of the shadow

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16
Q

Astronomical unit (AU)

A

The mean distance from the center of the sun

17
Q

Ellipses

A

A regular oval shaped traced by a point moving in a plane

18
Q

Terrestrial planet

A

Earth like planets made out of rock or metal

19
Q

Gas giant

A

A large planet of relatively low density

20
Q

Asteroid

A

A small object made out of rock or metal

21
Q

Comet

A

A body of ice and dust that travels in a long narrow orbit around the sun

22
Q

Meteor

A

A streak of light in the sky that forms into rock

23
Q

Geocentric

A

Having the earth as the center

24
Q

Heliocentric

A

When the sun is in the center

25
Q

Gravity tied

A

Based on the gravitational at tractev force

26
Q

Waxing

A

Waxing is growing with light until a full moon

27
Q

Waring

A

Waring is decreasing after a full moon

28
Q

Gibbous moon

A

More than half of a moon

29
Q

Crescent moon

A

The moon as it appears early in its first quarter

30
Q

Full moon

A

The moon appears the eye for two or three nights

31
Q

New moon

A

The phase of the moon when it is in continuous

32
Q

Quarter moon

A

It occurs when we see the Half moon

33
Q

Aphelion

A

The point in the orbit of a planet asteroid or comet

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