chapter 29.3 Flashcards
a rise or a fall in the ocean
tide
what is it called when the moon changes appearance seen from the Earth?
moon phase
what is it called when the moon moves directly between the sun and Earth and casts a shadow on Earth?
solar eclipse
what is it called when Earth passes between the sun and the Moon and casts a shadow on the Moon?
lunar eclipse
what are the dark-colored flat lava-filled region on the moon’s surface?
Marian
what is a layer of dusty lunar material produced by collisions between asteroids and comets and the moon?
Regolith
how many days does it take the moon to revolve around the Earth?
27.3 days
a complete lunar phase cycle takes 29.5 days what is it called ?
synodic month
do we ever see the back side of the moon?
no
what cause a tide to rise or fall?
gravitational pulls form the moon and the sun
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 drop?
six hours later
which is father from the Earth, the sun , or the moon?
sun
does the moon or the sun cause a greater effect on Earth’s tides ?
moon
how does the sun the Earth and the moon aligned for a spring tide?
they are aligned in a straight line
how does the sun , the Earth and the moon aligned for a neap tide?
in an 90 degree angle or L shape
what does the phase of the moon you see depend on?
the positions of the moon earth and sun relative to one another
when does a new moon occur?
when the moon is between the Earth and the sun
how many phases of the moon are there?
8
what is the definition of waxing phases?
the illuminated portion that we see appears larger each night
what id the definition of waning phases?
the illuminated portion that we see begins to appear smaller
what are the moon phases names?
new moon waxing crescent 1st quarter waxing gibbous full moon waning gibbous 3rd quarter waning crescent
where is the word month derived from?
same root word as moon
How is the Earth, moon, and sun aligned during a solar eclipse?
sun,moon, earth
what is an umbra?
the shadow
what is a penumbra?
you would be in the lighter shadow
how is the earth aligned during the lunar eclipse?
sun earth moon
how are the depressions on the moon formed?
meteorites
asteroids
comets
are there mountains on the moon?
yes
which side of the moon is thicker?
far side the one that is not facing earth
is the mantle of the moon a solid or a liquid?
solid
what did the Clementine spacecraft do?(2 things)
confirmed the thickness side of the moon
provided info on the mineral content of moons rock
what did the Lunar prospector do? (3 things)
took photographs of the lunar surface
confirmed the moon has small iron-rich core
collected evidence that supports the present of water-ice on the moon
what is the Giant Impact Theory?
state that a mars size object collided with Earth and when this happened debris was kicked into orbit and created the Moon
