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Earth Science Regents > Unit Nine - Astronomy - Moon > Flashcards

Unit Nine - Astronomy - Moon Flashcards

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1
Q

Definition of Moon

A

A body that orbits a planet or asteroid as they orbit the Sun

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2
Q

How long is the Moon’s elliptical orbit?

A

Orbit the Earth - 27.3 Days
Complete Phase Cycle - 29.5 Days

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3
Q

Definition of Crescent Moon

A

The phase that is between a Half Moon and a New Moon or a New Moon and a Half Moon.

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4
Q

Definition of Full Moon

A

Phase that appears as an entire circle in the sky.

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5
Q

Definition of Gibbous Moon

A

Phase that is between a Half and Full

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6
Q

Definition of New Moon

A

Phase where no part is visible in the sky.

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7
Q

Definition of Waxing Moon

A

When the moon increases in size (or where the light appears to the right part of the moon)

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8
Q

Definition of Waning Moon

A

When moon decreases in size (or where the light appears to the left part of the moon)

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9
Q

What is the definition of the solar eclipse?

A

When the moon is in between the Earth and the Sun, blocking the Sun.

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10
Q

What is the definition of a lunar eclipse?

A

The Moon moves into the Earth’s shadow, causing the Moon to be darkened

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11
Q

What phases will the moon be in an eclipse?

A

New Moon - Solar Eclipse
Full Moon - Lunar Eclipse

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12
Q

What is the Umbra?

A
  1. The cone - shaped region
  2. Complete shadow/darkness in an eclipse.
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13
Q

What is the Penumbra?

A

The region in which only a partial shadow/darkness in an eclipse.

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14
Q

What is Synchronous Rotation?

A

The rate of rotation is the same as the rate of revolution
Earth will always see the same side of the moon

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15
Q

What are the 8 Phases of the Moon?

A
  1. New Moon (Solar Eclipse)
  2. Waxing Crescent
  3. FIrst Quarter
  4. Waxing Gibbous
  5. Full Moon (Lunar Eclipse)
  6. Waning Gibbous
  7. Third Quarter
  8. Waning Crescent
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16
Q

What are High Tides (3)?

A
  1. Moon’s Gravitational Pull
  2. Forces Earth’s water to Bulge Out
  3. Towards the Moon and the Opposite Direction
17
Q

When do High Tides and Low TIdes alternate?
Why?

A
  1. Every Six Hours
  2. Earth Rotates
18
Q

What are Spring Tides

A
  1. High Tide Reaches Highest Point
  2. Moon and the Sun are Aligned, increasing the Gravitational Pull
19
Q

What are Neap TIdes

A
  1. Moon is 90 degrees (1st & 3rd Quarter) from the Sun
  2. High Tide from the Moon is Overlapping with the Low Tide from the Sun
  3. Higher Low Tide & Lower High Tide

Earth Science Regents (43 decks)

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