our marvelous moon2
TRANSCRIPT
VoilaVoila, La Lune, La Lune FormationFormation Physical featuresPhysical features Lunar CycleLunar Cycle Ocean TidesOcean Tides EclipsesEclipses
Moon Formation TheoriesMoon Formation Theories Fission TheoryFission Theory
Moon breaks off from EarthMoon breaks off from Earth Problems?Problems?
Earth rotation too slowEarth rotation too slow
Capture TheoryCapture Theory Earth’s gravitational pullEarth’s gravitational pull Problems?Problems?
Need extended Earth atmosphereNeed extended Earth atmosphere
Giant Impact TheoryGiant Impact Theory Proto-Earth is hitProto-Earth is hit
Accretion forms moonAccretion forms moon Problems?Problems?
Undetermined relative sizesUndetermined relative sizes
Physical FeaturesPhysical Features
DiameterDiameter 3.5 km3.5 km ( (1/4 Earth1/4 Earth))
Surface AreaSurface Area < .1% of Earth< .1% of Earth
Orbital PeriodOrbital Period 27.3 days27.3 days
Surface GravitySurface Gravity 17% of Earth17% of Earth
So what is so special about the moon, anyways?
Lunar CycleLunar Cycle Repeats every Repeats every 29.5 days29.5 days SynodicSynodic Period Period
Harvest MoonHarvest Moon
WaningWaning Decreasing sizeDecreasing size
WaxingWaxing Increasing sizeIncreasing size
Ocean TidesOcean Tides
High TideHigh Tide Two “bulges”Two “bulges”
Elevated Sea LevelElevated Sea Level
Low TideLow Tide Water rushes to Water rushes to
bulgesbulges
Earth RotationEarth Rotation Friction on seafloorFriction on seafloor
Lunar EclipseLunar Eclipse
EarthEarth is between Moon & is between Moon & SunSun
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