Space~March~ Flashcards

1
Q

Tide

A

The rise and fall of the oceans caused by the gravitational pull of the moon and sun ⭐️

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2
Q

Orbit

A

The path of an object in space as it moves around another object due to gravity.

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3
Q

Solar System

A

The Sun and it’s family of orbiting planets moons and other object

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4
Q

Galaxy

A

Millions and billions of stars held together in a group by their own gravity.

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5
Q

Universe

A

Space and all the matter and energy in it

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6
Q

Satellite

A

An object that orbits a more massive object

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7
Q

Crater

A

A round pit left behind on the surface of a planet after a smaller object strikes.

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8
Q

Axis rotation

A

An imaginary line about which a turning body such as earth rotates

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9
Q

Revolution

A

The motion of one body around another such as earth in its orbit around the sun.

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10
Q

Season

A

One of a platter of temperature changes and other weather trends over the course of a year

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11
Q

Equinox

A

In an orbit, a position and time in which sun shines equally on both hemispheres

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12
Q

Soltice

A

In and orbit a position and time during which one hemisphere recieves the maximum sunlight

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13
Q

Mare

A

A large dark plain of solidified lava on the moon

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14
Q

Eclipse

A

An event during which one object in space casts a shadow onto the moon

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15
Q

Umbra

A

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

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16
Q

Penumbra

A

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

17
Q

Astronomical Unit (AU)

A

Average distance from the Sun which is 93,000,000 miles

18
Q

Elipse

A

An oval or flattened circle

19
Q

terrestrial planet

A

A planet that has a rocky surface

20
Q

Gas giant

A

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

21
Q

Astroid

A

A small rocky body that orbits the Sun

22
Q

Comet

A

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

23
Q

Meteor

A

A brief streak of light produces by a particle entering earths almost at high speed

24
Q

Meteorite

A

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

25
Q

Geocentric

A

Earths centered theory of the Solar System

26
Q

Heliocentric

A

A sun centered theory of the universe

27
Q

Gravity

A

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

28
Q

Waxing

A

The gradual increase of the Illuminated surface of the moon

29
Q

Waning

A

The gradual decrease in the illuminated surface of the moon

30
Q

Gidious moon

A

More than half but less than fully illuminated

31
Q

Crescent moon

A

The illuminated surface is less than a quarter illuminated

32
Q

New moon

A

The entire surface of the moon is illuminated

33
Q

Quarter moon

A

Half of the moon is illuminated