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General Science/Mechanics/ Etc. > General Science- The Sun & The Planets etc. > Flashcards

General Science- The Sun & The Planets etc. Flashcards

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1
Q

The sun is classified as WHAT kind of star? 2 terms.

A

G2V or Yellow Dwarf

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2
Q

How hot are G2 stars on the surface?

A

Approximately 6,000 Celsius

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3
Q

What color are G2 stars?

A

Yellow

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4
Q

What are the charges of the metals that G2 stars consist of?

A

Neutral

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5
Q

What do G2 stars normally consist of?

A

Iron
Magnesium
Calcium

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6
Q

What do V’s indicate for stars?

A

That it is a dwarf star or significantly smaller.

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7
Q

What is the estimated age of the sun and is it older than the earth?

A

4.7 billion years and yes.

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8
Q

What percentage of mass does our sun contain in the entire solar system?

A

Around 99.9 percent

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9
Q

Stars consist of what?

A

Gigantic balls of superheated plasma.

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10
Q

How are stars kept so hot?

A

Atomic reactions emanating from its center.

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11
Q

What is the temperature at the core of the sun?

A

15 million Celsius

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12
Q

Temperatures on the surface of the sun range between what?

A

4,000 to 15000 Celsius

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13
Q

The diameter of the sun is about how many kilometers?

A

1.4 million kilometers

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14
Q

The diameter of the sun is by comparison to the earth how many times?

A

Over 100 times.

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15
Q

The surface area of the sun is how many times greater than the earth’s surface area?

A

12,000 times

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16
Q

The four planets closest to the sun are named what?

A

Mercury
Venus
Earth
Mars

17
Q

The four planets closest to the sun are WHAT kind of planets?

A

Terrestrial Planets

18
Q

What makes terrestrial planets?

A

Based on their similar compositions to Earth’s composition.

19
Q

What are the compositions of terrestrial planets?

A

Inner Metal Cores

Rock Surfaces

20
Q

Which 2 terrestrial planets have moons of their own?

A

Earth

Mars

21
Q

Which planet is the largest of the terrestrial planets?

A

Earth

22
Q

Which other four planets are considered Outer Planets?

A

Jupiter
Saturn
Uranus
Neptune

23
Q

Which was once considered a planet but not anymore?

A

Pluto

24
Q

What do the outer planets have?

A

Rings

25
Q

Which outer planet has the most notable rings?

A

Saturn

26
Q

What do the rings on the outer planets consist of?

A

Ice Crystals

27
Q

What is the order?

A 
Mercury
Venus
Earth
Mars
Jupiter
Saturn 
Uranus
Neptune

General Science/Mechanics/ Etc. (37 decks)

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