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39 Cards in this Set
- Front
- Back
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Name the Terrestrial planets: |
mercury venus earth mars |
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The inner Terrestrial planets are composed of __________ and have ________densities. |
rock |
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Name the Jovian planets:
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Jupiter, Saturn, Uranus, Neptune |
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The Jovian planets are composed of __________ and have _________ average densities
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gas |
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Planet interiors are layered with each zone becoming more dense as you get to the core. This separation of density during planet formation is a result of the force of ______________ |
gravity |
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The reason that the Moon and Mercury have far more impact craters than the Earth is because they don't have _____________ |
Atmospheres |
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Impact events from asteroids/comets/meteors have in the past caused mass ____________
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extinctions |
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Why does the moon go through a cycle of phases?
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it revolves around the Earth
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How long does it take for the moon to complete a cycle of phases?
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29.5 days
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How long does it take the moon to revolve around the Earth?
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27.3 days look it up on page 15 ESRT
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Why do we only see one side of the moon from Earth?
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it rotates and revolves at the same rate
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What are the two moon phases when eclipses are possible?
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full and new |
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What type of eclipse occurs when the moon is blocked out by Earth’s shadow? |
a lunar |
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What 2 moon phases result in spring tides (large tidal difference)
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full and new
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What phases result in neap tides? |
first and last quarter
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Which position is the full moon |
5 |
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Draw the moon phase as seen |
Waxing gibbous |
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Which 2 positions would result |
3 and 7 the first and last quarter |
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When did the the solar system form? |
5 billion years ago |
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Why does the moons apparent diameter appear to change! |
Because the distance between earth and the moon change due to the moons elliptical orbit |
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Approximately how many hours will pass in between two high tides! |
12 |
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A New moon and Full moon occur every month, why then don't eclipses occur more frequently? |
Because the moon's orbit is tilted |
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What types of an eclipse occurs when the moon's shadow falls on the Earth's? |
Solar |
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Where are most asteroids found? |
In the asteroid belt between Mars and Jupiter . |
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What are asteroids made of? |
Rock and metal |
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Where are most comets found? |
Kuiper belt |
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What are comets made of? |
Rocks and ice |
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Which group of planets have the longest years? |
Jovian/ gas giant |
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Which. Group of planets are small and dense? |
Terrestrial |
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How did the moon form? |
From an object that impacted the early Earth |
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What is the shape of the moon's orbit? |
An oval (ellipse) |
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The highest high tide will occur during which two moon phases? |
New and full |
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Why do we only see one side of the moon from the Earth? |
It rotates and revolves at the same rate |
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What does the period of rotation for a planet measure? |
The length of day |
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A planet's year is a measurement of how long it takes to....... |
Revolve |
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Which celestial object has a characteristic tail? |
A comet |
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When the moon is becoming more illuminated we say that it is ......... |
Waxing |
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What phase is the moon in when zero percent of the lit side is visible from Earth? |
New |
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Which type of planets have rings? |
Jovian |
