chapter 29.3 Flashcards

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1
Q

is a rise or fall in the ocean surface

A

tide

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2
Q

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

A

moon phase

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3
Q

occurs when the moon moves directly between the sun and earth and casts 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

the dark-colored, flat, lava-filled regions on the moon’s surface

A

maria

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6
Q

a 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

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8
Q

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

A

synoptic month

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9
Q

do we ever see the back side of the moon

A

we only see on side

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10
Q

what causes a tide to rise or fall

A

gravitational pulls of the sun and the moon

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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 farther from earth, the sun or the moon

A

sun

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14
Q

does the moon or the sun cause a greater effect on earth’s tide

A

moon

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15
Q

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

A

the sun the earth and the moon are in a straight

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16
Q

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

A

90 degree angle

17
Q

what does the phase of the moon you see depend on

A

the positions of the moon, earth and the sun relative to one another

18
Q

when does a new moon occur

A

when the moon is 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 waxing phases

A

the illuminated portion that we see appears larger each night

21
Q

what is the definition of waning phases

A

after a full moon, the illuminated portion that we see begins less and less

22
Q

what are the moon phase names

A

new moon, waxing crescent, 1 quarter, waxing grievous, full moon waning grievous, 3rd quarter, waning crescent

23
Q

where is the word month derived from

A

root ward as moon

24
Q

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

A

sun,moon, and earth

25
Q

what is an umbra

A

the darkest portion of the moons shadow

26
Q

what is a penumbra

A

the lighter shadow of the moon that is casted on earth

27
Q

how is the earth,moon and sun aligned during a lunar eclipse

A

the earth is between the sun and the moon

28
Q

how are the depressions on the moon formed

A

by asteroids, meteorites and comets

29
Q

are there mountains on the moon

A

yes

30
Q

which side of the moon is thicker

A

the back side

31
Q

is the mantle of the moon a solid or a liquid

A

solid

32
Q

what did the clementine spacecraft do

A

it confirmed the thickness of the crust and provided information om the mineral content of moon rocks

33
Q

what did the lunar prospector do

A

took pictures of the moon surface and even-dents of the presents of the water-ice and confirmed that the moon has a iron rich core

34
Q

what is the giant impact theory

A

a mars side object the clided with earth and left debre