Solar system (LAB) Flashcards

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1
Q

The order of planets in solar system

A

Sun, mercury, venus earth mars jupiter saturn uranus neptune

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2
Q

Since when is a certain planet is no longer a planet?

A

pluto in 2006

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3
Q

How many known elements?

A

118

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4
Q

A rxn where 2 elements w/ lighter nuclei combine to form heavier one.

A

nuclear fusion

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5
Q

Natural objects or space craft that orbits a longer astronomical body

A

Satellite like the moon

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6
Q

How many moons does earth have?

A

1

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7
Q

How many moons does mars have?

A

2

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8
Q

How many moons does jupiter have?

A

95

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9
Q

How many moons does saturn have?

A

146

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10
Q

How many moons does uranus have?

A

28

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11
Q

How many moon does neptune have?

A

16

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12
Q

Which ones have 0 moons?

A

Venus and mercury

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13
Q

A small natural bodies <1000km in diameter that orbit the sun.

A

Asteroids

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14
Q

Where are asteroids found?

A

Asteroid belt and kuiper belt

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15
Q

What shape does an asteroid belt have?

A

a torus shaped region.

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16
Q

Where is the asteroid belt found?

A

between mars and jupiter

17
Q

What is in the middle of belt?

18
Q

What was first known as an asteroid and now a dwarf planet?

19
Q

Who is the ancient roman goddess of agriculture?

20
Q

Tell me about dwarf planets?

A

Smaller than mercury but has its own gravity.

21
Q

What two camps can asteroids closest to jupiter be divided into?

A

The greeks and the trojans

22
Q

5000 asteroids in asteroid belt, closest to jupiter are considered to be what?

A

Hildas ASteroids

23
Q

Asteroid belt outer solar system ?

24
Q

What planets are considered to be dwarfs?

A

Pluto, Orcus, Haumea, Makemake, Eris

25
Dwarf planet that revolves around the sun.
Eris
26
Where does the word planet come from?
Greek word 'planetes', meaning wanderers.
27
A large body that revolves around and does not radiate energy from internal nuclear fusion?
Planet
28
What must be the size to be considered a planet?
more than 1000km in diameter or larger than ceres
29
What must be the shape of a planet?
large enough to be rounded by its own gravity into a sphere
30
What does "clearing the neighborhood around its orbit" mean?
becoming gravitationally dominant
31
Why is Pluto not a planet?
shares orbital w/ many bodies in Kuiper belt and did not "clear the neighborhood around its orbit."