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Astronomy Flashcards

1
Q

Define: Astronomical Unit

A

The Average Distance Between The Earth And The Sun

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2
Q

Provide An Example For: LightYear

A

Ex: It Would Take 8 Minutes To Get To The Sun When Traveling LightYears

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3
Q

What Is A Parsec????

A

A Unit Used To Define Large Distances

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4
Q

Whats A Nebula?

A

A Fuzzy Patch Of Dust In Space.

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5
Q

What Is A Constellation? How Many Constellations Are There?

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6
Q

Provide A Definition For Planetesimal.

A

A Cloud Of Rocks/Asteroids That Are Said To Form Planets.

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7
Q

Define Protoplanetary

A

Dust And Gas That Surround The Core Of A Solar System. It Can Turn Into Its Own Planet.

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8
Q

How Does Nuclear Fusion Happen?

A

The Light Atoms Of Two Or More Nuclei Are Forced Together

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9
Q

What Are The Terrestial Planets

A

Mercury, Venus, Earth, And Mars

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10
Q

Gas Giant Planets???

A

Planets That Are Made Entirely Of Gas.

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11
Q

What Is A Comet?

How Many Comets Have Passed Earth?

A

A Comet Is An Object Consisting Of Gas, Ice, And Beautiful Energy. There Has Been Billions Of Comets That Passed Earth

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12
Q

Asteroids?

A

An Asteroid Is A Giant Rock That Floats In Space.

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13
Q

What Does A Cosmologist Do?

A

Hes/Shes A Space Scientist That Studies How Space Evolves And Changes.

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14
Q

What Is Angular Velocity?

A

The Rate Of Movement Or Change Of An Object

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15
Q

How Does Orbit Work?

A

When Something Is In Orbit It Usually Floats Around Until Its Pushed Out

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16
Q

Define: Period

A

How Long Something Takes To Complete Its Own Cycle

17
Q

Revolve?

A

To Rotate Around In Object. Or To Rotate On Its Own.

18
Q

Rotation

A

The Action Of Turning Or Revolving Of An Object.

19
Q

Sidereal Day

A

The Time Between Two Rotations Of The Earth.

20
Q

Solar Day?

A

Its The Time Between Two COMPLETE Days On Earth.

21
Q

How Long Is A Year?

A

365 Or 366 Days On Earth.

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