CH 29.3 Flashcards
How many days does it take the moon to revolve around?
27.3 days
A complete lunar phase cycle takes 29.5 days, what is this called?
29.5 days and called a synodic month
Do we ever see the back side of the moon?
NO
What causes a tide to rise or fall?
the gravitational pulls of the sun and the moon.
What is the rise of sea level called?
High tide
After the sea level rises how many hours does it take for the sea level to drop?
About 6 hours
Which is farther from Earth, the sun or the moon?
The sun
Does the moon or the sun cause a greater effect on Earths tides?
The moon
How are the sun, the earth and the moon aligned for a spring tide?
The sun the earth and the moon are in a straight line.
How are the sun the earth and the moon aligned for a neap tide?
an L
What does the phrase of the moon you see depend on?
The phase you see depends on the positions of the moon.
When does a new moon occur?
How many phases of the moon are there?
8
What is the definition of waxing phases?
The illuminated portion that we see appears
What is the definition of waning phases?
The waning crescent occurs before another new moon.
What are the moon phase names?
New, waxing crescent, 1st quarter, waxing gibbous, full, waning gibbous, 3rd quarter, waning crescent,
Where is the word month derived from?
From the same root word as Moon.
How is the earth, moon and sun aligned during a solar eclipse?
aligned in a straight line.
What is an umbra?
What is a penumbra?
How is the earth, moon and sun aligned during a lunar eclipse?
How are the depressions on the moon formed?
By meteorites, asteroids, and comets which strike the surfaces of planets and their satellites.
Are there mountains on the moon?
Which side of the moon is thicker?
the back side.
Is the mantle of the moon a solid or a liquid?
A solid
What did the Clementine spacecraft do?
Confirmed that the crust on the side facing Earth is much thinner than the
What did the lunar prospector do?
orbited the moon, Taking photographs of the lunar surface.
What is the giant impact theory?
Gas and other debris were throw into orbit.
The remainder condensed into a large mass, forming the moon.
