Moon Positions
How many Lunar Phases are there?
8
Describe the Umbra.
The darkest, center region of the shadow that no light reaches.
Describe the positions of the Sun, Earth, and Moon during a Solar Eclipse. Draw your answer on the whiteboard.
Sun -> Moon -> Earth
How many days does it take for the moon to orbit the Earth?
27.3 days
The viewpoint of the moon for people in the southern hemisphere is ______________ compared to the northern hemisphere.
flipped; inverted
During which lunar phase does a lunar eclipse occur?
Full Moon
Describe the Penumbra.
The lighter edges of the shadow where the light source is visible. Not as dark as the umbra.
Why is a solar eclipse more rare to see than a lunar eclipse.
The size of the Earth's umbra is much larger than the moon's umbra.
During this moon phase, the moon is mostly illuminated, but the light is decreasing.
Waning Gibbous
Why does the moon change shape every night?
The moon's orbit around the Earth changes the angle at which we are able to see the light reflecting off of it.
During which lunar phase does a solar eclipse occur?
New Moon
Which is larger, the umbra or penumbra? (Covers more area)
Penumbra
What is the name for the line taken by the umbra during a solar eclipse where you are in a total solar eclipse?
Path of Totality
This is the phase directly BEFORE a Full Moon.
Waxing Gibbous
What causes Earth's tidal range to fluctuate. (difference between high and low tides).
Moon's gravitational pull; Sun's gravitational pull
During what phase does a Blood Moon occur?
Full Moon
If I am standing on Earth during a Total Solar Eclipse, I am standing in which shadow?
Umbra
If you have a larger light source than the object being cast on, will the umbra be smaller or larger?
Smaller, with more penumbra
During a Waxing Crescent Moon, what does the moon look like? (Is the light increasing or decreasing, what side is the light on, and what does it look like)
During what type of tides is their the least amount of difference between high and low tide.
Neap Tides
Why does an annular solar eclipse occur?
The moon is too far away from the Earth, so it appears smaller and doesn't cover the entire sun.
What type of shadow occurs only during an Annular Solar Eclipse?
Antumbra
The moon must lie perfectly in Earth's _________________ during a New Moon for a solar eclipse to occur.
Orbital Plane
Give all 4 intermediate phases.
New Moon, First Quarter, Full Moon, Third Quarter
Where on Earth does the moon appear to be on its side?
Equator