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Astrology & Geology > Moon > Flashcards

Moon Flashcards

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Astrology flashcards
1
Q

What is the moon?

A

A natural satellite

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2
Q

Compare the Earth’s and Moon’s size

A

Earth: 7930 mi
Moon: 2160 mi

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3
Q

Compare the Earth’s and Moon’s tilt

A

Earth: 23.5
Moon: 7

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4
Q

Compare the Earth’s and Moon’s temperature

A

Earth: -73 to 48 C
Moon: -107 to 153 C

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5
Q

Compare the Earth’s and Moon’s atmosphere

A

Earth: Thick, mild greenhouse effect
Moon: None

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6
Q

Compare the Earth’s and Moon’s liquid water

A

Earth: At surface
Moon: Ice at poles in shadows

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7
Q

Describe the Moon’s temperature

A

Extreme temperature
Day = 130 C
Night = -190 C

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8
Q

How did the moon form?

A

Formed from impact of Mars-sized “planetsimal” on Earth, debris from both objects melted together to form the moon

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9
Q

When did the moon form?

A

4-5 billion years ago

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10
Q

What are Rolled?

A

Trenchlike valleys

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11
Q

What are Highlands?

A

Mountains up to 7500m tall

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12
Q

How were Craters formed?

A
  1. Meteorite impact on the moon

2. Volcanic action inside the moon

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13
Q

What is Maria?

A

Darkest part of lunar landscape

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14
Q

What was Maria originally thought to be?

A

Seas

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15
Q

How long does it take the moon to orbit the earth?

A

271/3 days

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16
Q

How long does it take for the moon to rotate?

A

27 days

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17
Q

What is a full moon?

A

When the moon is completely visible to us

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18
Q

What is a new moon

A

When the moon is completely invisible to us

19
Q

Why does the same side of the moon always face the Earth?

A

The moon is also rotation

20
Q

What is the far side of the moon like?

A

More craters, very few maria, thicker crust

21
Q

Describe the full moon phase

A

The moon is fully illuminated

22
Q

Describe the new moon phase?

A

The moon is not illuminated at all

23
Q

Describe the waxing phases of the moon

A

The moon is growing in illumination

24
Q

Describe the waning phases of the moon

A

The moon is shrinking in illumination

25
Q

Describe the crescent phases of the moon

A

The phases where the moon is less than half illuminated

26
Q

Describe the gibbous phases of the moon

A

The phases where the moon is more than half illuminated

27
Q

Draw a diagram of the phases of the moon

A

Sj

28
Q

Describe a Lunar Eclipse

A
  1. Moon moves into the Earth’s shadow
  2. Happens 2 to 3 times per year
  3. Lasts 4 hours
29
Q

Describe a solar eclipse

A

Moon moves between Earth and Sun and casts a shadow on part of the Earth

30
Q

What is an Umbra?

A

The darker part of a shadow

31
Q

What is a Penumbra?

A

The lighter part of the shadow

32
Q

What are the 3 lunar eclipses?

A
  1. Penumbral LE
  2. Partial LE
  3. Total LE
33
Q

Describe a Penumbral Lunar Eclipse

A

The moon passes through Earth’s penumbral shadow

34
Q

Describe a partial lunar eclipse

A

A portion of the moon passes through Earth’s umbral shadow

35
Q

Describe a total lunar eclipse

A

The entire moon passes through Earth’s umbral shadow

36
Q

What are the 3 types of solar eclipses?

A
  1. Partial
  2. Annular
  3. Total
37
Q

Describe a partial solar eclipse

A

Part of the sun is covered by the moon

38
Q

Describe a annular solar eclipse

A

The Sun’s center is covered by the moon, leaving its edges uncovered

39
Q

Describe total solar eclipse

A

The Sun is completely covered by the moon

40
Q

How does the moon cause tides?

A

The pull of the Moon’s gravity

41
Q

Where is high tide?

A

On the sides facing the moon and on the side facing away from the moon

42
Q

Where is low tide?

A

On the sides of the Earth

43
Q

How often do the tides change?

A

Every 12hrs, and 25 1/2 mins

44
Q

How many high tides and low tides are there in a day?

A

2 each per day

Astrology & Geology (10 decks)

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