chapter 29.3 Flashcards

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1
Q

a rise fall in the ocean surface

A

tide

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2
Q

reflects the change in appearance of the moon as seen from earth

A

moon phase

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3
Q

occurs when the moon directly between the sun and earth and cast a shadow on earth

A

solar eclipse

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4
Q

occurs when earth passes between the sun and the moon and casts a shadow on the moon

A

lunar eclipse

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5
Q

dark-colored flat lava-filled regions on the moons surface

A

maria

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6
Q

layer of dusty lunar material produced by collisions between asteroids and comets and the moon

A

regolith

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7
Q

how many days does it take the moon to revolve around 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

synotic 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 tide to rise or fall

A

gravitational poles from the sun

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11
Q

what is the rise of sea level called

A

high tide

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12
Q

after the sea level rises how many hours does it take for the sea level drop

A

6 hours

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13
Q

which is father from Earth, the sun or the moon?

A

sun

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14
Q

does the moon or the sun cause greater effect on Earth’s tides

A
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15
Q

how are the sun, the earth, and the moon aligned for a spring tide

A

luna

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16
Q
A

the moon earth sun are alignd in a staright

17
Q
A

positions of the moon earth and the sun

18
Q
A

8 phases

19
Q
A

illuminated postion that we begins

20
Q

how is the earth moon and sun aligned during a solar eclipse

A

straight line

21
Q

what is an umbra

A

total solar eclipse darker

22
Q

which side is thicker on moon

A

dark side of the moon

23
Q

is the mantle of the moon a solid or a liquid

A
24
Q

what did the clementine spacecraft do

A

confirmed thickness of crust on the side facing earth is much thinner than on the far side

25
Q

what did the lunar prospector do

A

confirmed moon has small iron-rich core
photos of the lunar surface
collected evidence supports presence of water-ice on moon

26
Q

what is the giant impact theory

A

moon formed 4.6 billion years ago mars-sized object collided with earth