WORDS Flashcards

1
Q

the circular path of an object as it revolves around another object

A

Orbit

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2
Q

The sun and it’s family of orbiting planets and moons and other objects

A

Solar System

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3
Q

Millions or billions of stars held together in a group 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 obits a more massive object

A

Satellite

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6
Q

A round pit left behind on the surface of a planet or other 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 body such as earth rotates

A

Axis of Rotation

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8
Q

One part of a patten of temperature changes and other weather changes tends over a course of a year

A

Season

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9
Q

In a obit a position and time in which sunlight shines equally on the Northern and Southern Hemispheres a time of the year when daylight and darkness are nearly equal are nearly equal for most parts of earth

A

Equinox

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10
Q

In an obit a position and time during which one hemisphere receives it maximum are of sunlight while the other hemisphere receives it minimum amount the time of year when the days are either longest or shortest

A

Solstice

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11
Q

A large dark plain of solidified lava on the moon

A

Mare

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12
Q

An event during which one object in space cast a shadow onto another

A

Eclipse

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13
Q

The dark central region of a shadow such as the cone of complete shadow cast by an object

A

Umbra

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14
Q

A region of lighter shadow that may surround a dark central region. The spreading come of lighter shadow cast by an object

A

Penumbra

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15
Q

Average distance from the Sun which is approximately 93,000,00 miles or 150 millions kilometers

A

Astronomical Unit (AU)

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16
Q

An oval or flattened circle

17
Q

A planet that has a rocky surface

A

Terrestrial Planet

18
Q

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

19
Q

a small rocky body orbiting the sun

20
Q

a body that produce a coma of gas and dust, a small icy body that orbits the Sun

21
Q

a brief streak of light produced by a particle entering Earths atmosphere it high speed

22
Q

a small object from outer space that passes through Earths atmosphere and reaches the surface

23
Q

Earth centering theory of the solar system

A

Geocentric

24
Q

A sun centering theory of the solar system

A

Heliocentric

25
The force that objects exert on one another because of their mass
Gravity
26
the rise and fall of the ocean levels caused by the gravitational pull of the moon
Tide
27
The gradual increase of the illuminated surface of the moon
Waxing
28
(of the moon) have a progressively smaller part of its visible surface illuminated, so that it appears to decrease in size.
Waning
29
convex at both edges, as the moon when more than half full.
Gibbous Moon
30
A crescent is a thin, curved shape that's thicker in the middle and tapers to thin points at each end, like the little sliver of moon you might notice in the sky. Crescent was first used to describe the shape of the waxing, or growing moon, and if you listen closely you can hear its similarity to increase.
Crescent Moon
31
the phase of the moon in which its whole disk is illuminated.
Full Moon
32
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.
New moon
33
Third Quarter. The moon is one-half illuminated by the sun. Occurs when the moon's illumination is decreasing, Waning Crescent. The moon is less than one-half illuminated by the sun but less than one quarter illuminated.
Quarter Moon