Space Flashcards

1
Q

A path of an object in space as it moves around another planet due to gravity

A

Orbit

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2
Q

The sun and its family of another planets moons and other objects

A

Solar system

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3
Q

Millions of billions of stars held together by their own gravity

A

Galaxy

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4
Q

Space and all the matter and energy in it

A

Universe

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5
Q

An object that orbits a more massive objects

A

Satellite

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6
Q

A round pit left behind on the surface of a planet or body in space after a smaller object strikes the surface

A

Impact crater

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7
Q

an imaginary line about which a turning object rotates

A

Axis

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8
Q

the motion of one body of another

A

Revolution

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9
Q

One part of a pattern of weather changes of a pattern of year

A

Season

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10
Q

In an orbit a position and time in which sunlight shines equally on the Northern and Southern Hemisphere

A

Equinox

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11
Q

In an orbit a position and time doing which one hemisphere receives its maximum area of sunlight while the other hemisphere receives its minimum amount

A

Solstice

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12
Q

A large dark plane of solidified lava on the moon

A

Mare

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13
Q

And event during Which one object in space casts a shadow onto another

A

Eclipse

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14
Q

The dark Central region of a shadow such as the cone of complete shadow cast by and object

A

Umbra

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15
Q

A region of lighter shadow that may surround a dark circle region

A

Penumbra

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16
Q

Average distance from the sun which is a approximately 93,000,00 miles or 150 million kilometers

A

Astronomical unit

17
Q

An oval or flattened circle

A

Ellipse

18
Q

a large planet that consist mostly of gases in a dense form

A

Gas giant

19
Q

A small solid rocky body that orbits the sun

A

Asteroid

20
Q

A body that can produce a coma of gas and dust a small icy body that orbits the sun

A

Comet

21
Q

A brief streak of light produced by the particle entering earth Atmosphere at high-speed

A

Meteor

22
Q

Earth centered theory and Solar System

A

Geocentric

23
Q

A sun centered theory of the solar system

A

Heliocentric

24
Q

The force that objects exert on one another because of their mass

A

Gravity

25
Q

The rise and fall of ocean levels caused by the gravitational pull of the moon

A

Tide

26
Q

The gradual increase of the illuminated surface of the moon

A

Waxing

27
Q

(of the moon) have a progressively smaller part of its visible surface illuminated, so that it appears to decrease in size.

A

Waning

28
Q

(of the moon) having the observable illuminated part greater than a semicircle and less than a circle.

A

Gibbous moon

29
Q

the curved sickle shape of the waxing or waning moon.

A

Crescent

30
Q

the phase of the moon in which its whole disk is illuminated

A

Full moon

31
Q

the phase of the moon when it is in conjunction with the sun and invisible from earth, or shortly thereafter when it appears as a slender crescent.

A

New moon

32
Q

Waxing Crescent. The moon is less than one-half illuminated by the sun but less than one quarter illuminated. Occurs when the moon’s illumination is increasing, First Quarter. The moon is one-half illuminated by the sun.

A

Quarter moon

33
Q

A planet that has a rocky surface

A

Terrestrial planets

34
Q

A small object from outer space that passes through earths atmosphere and reaches the surface

A

Meteorite