29.3 Flashcards

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1
Q

Tide

A

Rise or fall in the ocean surface

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2
Q

Moon phase

A

Reflects the change in appearance of the moon

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3
Q

Solar Eclipse

A

The moon moves directly between the sun and earth and cast a shadow on earth

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4
Q

Lunar eclipse

A

When earth passed between the sun and the moon and casts a shadow on the moon.

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5
Q

Maria

A

The dark colored flat lava filled regions on the moons surface.

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6
Q

Regolith

A

The layer of dusty lunar material produced by collisions between asteroids and comets and the Moon.

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7
Q

How many days does it take the moon to revolve around the Earth?

A

27.3 days

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8
Q

A complete lunar phase cycle takes 29.5 days, what is this called?

A

Synodic month

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9
Q

Do we ever see the back side of the moon?

A

No

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10
Q

What causes a ride to rise or fall?

A

The gravitational pulls of the sun and the moon

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11
Q

What is the rise of the sea called?

A

High tide

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12
Q

After the sea level rises how many hours does it take for the seal level to drop?

A

6 hours

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13
Q

Which is farther from Earth, and the sun or the moon?

A

Sun

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14
Q

Does the moon or the sun cause a greater effect on Earths tides?

A

Moon

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15
Q

How are the sun, the Earth and the moon aligned for the spring tide

A

The sun the earth and the moon are in a straight line.

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16
Q

How are the sun the wary and the moon aligned for a neap tide?

A

They make a ninety degree angle

17
Q

What does the phase of the moon you see depend on?

A

Depends on the position of the moon earth and the sun relative to another.

18
Q

When does a new moon occur?

A

When the moon is in between the earth and the sun

19
Q

How many phases of the moon are there?

A

8

20
Q

What is the definition of a waxing phase?

A

The illuminated portion that we see appears larger each night.

21
Q

what is the definition of waning phase?

A

Where the portion of the moon that we see gets smaller and smaller every night.

22
Q

What are the moon phase names?

A

1st quarter waxing crescent new waning crescent 3rd quarter waning gibbous full waxing gibbous

23
Q

Where is the word month derived from?

A

Moon

24
Q

How is the earth moon and sun aligned during a solar eclipse?

A

Straight line

25
Q

How is the earth moon and sun aligned during a lunar eclipse?

A

They are in a straight like and it’s sun moon earth

26
Q

Are there mountains on the moon?

A

Yes

27
Q

Which side of the moon is thicker?

A

Dark side of the moon

28
Q

Is the mantle or the moon a solid or a liquid?

A

Solid

29
Q

What did the Clementine spacecraft do? (2 things)

A

Confirmed the thickness of the crust of the moon and provided information on the mineral content of rocks

30
Q

What did the Lunar Prospector do? (3 things)

A

Took surface photos of the moon confirmed the moon has a small iron rich cure and collected presence if ice-water on the moon.

31
Q

What is the Giant Impact Theory?

A

The moon formed about 4.6 billion years ago when a marsh sized object collided with earth and gas and debit were thrown into orbit then it condenser into the moon

32
Q

What is an umbra?

A

Total eclipse darkest shadow

33
Q

What is a penumbra?

A

Partial exlipse

34
Q

How are the depressions on the moon formed?

A

Meteors