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science > Moon > Flashcards

Moon Flashcards

1
Q

How many phases of the moon are there?

A

8

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2
Q

How many days it takes Earth to complete one orbit around the Sun?

A

About 365.25 days

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3
Q

A solar eclipse can only happen during which phase of the moon?

A

New Moon

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4
Q

A lunar eclipse can only occur during which phase of the moon?

A

Full Moon

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5
Q

Waning means

A

Shrinking

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6
Q

Waxing means

A

Growing

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7
Q

During waxing phases of the moon, which side appears to be lit up?

A

The right side

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8
Q

During waning phases of the moon, which side appears to be lit up?

A

The left side

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9
Q

What is a blue moon?

A

The second full moon in one month

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10
Q

What is an Aphelion?

A

The point in Earth’s revolution where it is furthest away from the sun (July)

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11
Q

What is a Perihelion?

A

The point in Earth’s revolution where it is closest to the sun (January)

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12
Q

What is the Umbra?

A

The darkest part of the moons shadow during a solar eclipse

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13
Q

What is the Penumbra?

A

The lighter part of the moons shadow during a solar eclipse

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14
Q

What is a Neap Tide?

A

Low - Low tides, Earth, moon and sun are at 90 degrees

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15
Q

What is a Spring Tide?

A

High - High tides, Earth, moon, and sun are at 180 degrees

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16
Q

How many days does it take for the moon to make 1 revolution around the Earth?

A

27.3 days

17
Q

How many days is one Lunar cycle?

A

29.5

18
Q

What is the importance of 28 days?

A

It is the middle of 29.5 and 27.3

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