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NGSS1 - Science 9 > Space (ch 25) > Flashcards

Space (ch 25) Flashcards

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1
Q

Vector

A

amount of magnitude and direction

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2
Q

Revolution

A

An objects orbit

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3
Q

How to planets go around the sun?

A

Gravity and Inertia

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4
Q

Moon

A

relatively small natural body in space that revolves around a planet

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5
Q

One AU = ?

A

One astronomical unit (AU) equals the average distance from Earth to the sun

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6
Q

Nearest neighbor in space?

A

moon

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7
Q

The major surface features of the moon?

A

maria, highlands, and craters.

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8
Q

maria?

A

low, flat plains formed by ancient lunar lava flows

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9
Q

how many days for the moon to complete a full cycle of phases from full moon to new moon and back again?

A

about 29.5 days

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10
Q

Characteristics all inner planets have?

A

relatively small and dense, and have rocky surfaces

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11
Q

What 2 planets have surfaces that are marked by craters?

A

Mercury and Mars

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12
Q

How many days does it take Mercury to complete one revolution?

A

only 88 Earth days

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13
Q

Venus’s atmosphere is made up of what?

A

composed mostly of carbon dioxide

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14
Q

Mercury’s distance

A

.39 Au

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15
Q

Venus distance from sun

A

.72 au

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16
Q

Mars distance from sun

A

1.52

17
Q

How many days does it take Venus to do one rotation?

A

243 days

18
Q

Why is mars red

A

Iron red rocks give mars the red color

19
Q

Does mars have a thin or thick atmosphere

A

Very thing

20
Q

What planet other then earth have seasons

A

Mars

21
Q

Jupitars distance from sun

A

5.20 au

22
Q

Saturns distance from sun

A

9.54

23
Q

Uranus distance from sun

A

19.19

24
Q

Neptunes distance from sun

A

30.06

25
Q

What are the 4 outer planets made up of?

A

Hydrogen and helium

26
Q

One day on jupitar is how many hours?

A

10 hours

27
Q

How many moons does Jupiter have

A

63

28
Q

Why is Uranus blue?

A

Because of large amounts of methane

29
Q

How many moons does Neptune have

A

13

NGSS1 - Science 9 (5 decks)

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