Topic: The Moon. The Moon The Earth’s only natural satellite A satellite is a body that revolves...
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Transcript of Topic: The Moon. The Moon The Earth’s only natural satellite A satellite is a body that revolves...
Topic: The Moon
The MoonThe Earth’s only natural satellite
A satellite is a body that revolves in a
regular orbit around a planet
Moon at Perigee (closest to Earth)—221,000 mi
Moon at Apogee (furthest from Earth)—253,000 mi
How would the Moon look when it is Closer to the Earth compared to when it is Further away?
The Moon appears to change in size depending on where it’s located on its orbit. This is called ______________.
Moon at Perigee (closest to Earth)—221,000 mi
Moon at Apogee (furthest from Earth)—253,000 mi
As the Moon gets closer to the Earth the Apparent Diameter _________ and as the Moon moves further away Apparent Diameter ___________.
• No Atmosphere– ---– ---
Moon’s Rotation Vs. Revolution
Moon’s Rotation
ESRT pg 15
Moon’s Revolution around Earth
ESRT pg 15
Moon’s rotation period = ___________
The same side faces the Earth
We, on Earth, NEVER see the far side of the Moon from Earth
Fixed direction in space
Earth
Moon
Earth orbits around Sun => Direction toward Sun changes!
29.53 days
•Synodic period (based on Sun) = 29.53 days
(about 1 month).
FQ: Why does only one side of the Moon always
face Earth?
Topic: Phases of the Moon
Phases of the Moon caused by:
---, Moon and Sun, as the Moon revolves around the Earth
• Moon completes phases in 29 ½ days
Phases of the Moon:Caused by the Moon’s revolution
around Earth
Like the Earth, half of the Moon is always lit
by the Sun.• Also like the Earth, half of the moon
is completely dark.• The moon does not really change, it
____________________
You have to ____ the car before it _____
• As the Moon becomes more illuminated, it is called a ______
• As the Moon becomes darker, after the full Moon phase, it is called a __________
New Moon
• When the Moon is in between the Sun and the Earth, we cannot see the Moon. This part of the Moon is in the shade.
• This is called a _______
Full Moon
• When the Earth is in between the Moon and the Sun, we see the whole part of the Moon which is lit up by the Sun.
• This is called a _______
Quarter Moon
• When the Moon is above or below the Earth, we can only see half of the lit area of the Moon.
• This is called a _________
Crescent Moon
• When the Moon is in between the new moon and the quarter moon, we are only able to see a little sliver of the illuminated side of the Moon.
• This is called a __________
Earth Shine-
Moon Simulation
• http://www.eram.k12.ny.us/education/components/docmgr/default.php?sectiondetailid=17500&fileitem=4942&catfilter=452
Final Question• Which phase of the
Moon is seen from Earth when the Moon is in Position 5?
• Final Question