22C Flashcards

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1
Q

The earth’s path around the sun is called its?

A

Orbit

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2
Q

It takes the earth ___ years to completely orbit the sun?

A

One Year

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3
Q

The sun is an almost perfect ball made out of?

A

Plasma

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4
Q

The sun has a mass of about _____ times bigger than the earth?

A

330,000

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5
Q

About 3/4 of the sun’s mass consists of?

A

Hydrogen

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6
Q

The spinning of the earth is called its?

A

Rotation

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7
Q

The earth _____ and moves around the sun?

A

Spins

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8
Q

the moons point is called?

A

perigee

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9
Q

Observing the planets, moon, and stars from a moving, rotating earth is called?

A

Apparent Motions

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10
Q

Moon blocks some of the sun’s light from reaching earth

A

Solar Eclipse

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11
Q

The earth blocks the suns light that normally shines on the moon

A

Lunar Eclipse

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12
Q

Being shaped like a ring

A

Annular

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13
Q

When the moon is closest

A

Perigree

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14
Q

When the moon is farthest

A

Apogee

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15
Q

Oscillating or balancing, like a scale

A

Libration

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16
Q

Moon’s light growing larger

A

Waxing

17
Q

Moon’s like getting smaller

A

Waning

18
Q

Lunar cycle begins as the

A

New Moon

19
Q

The shape and change of the lighted face of the moon

A

Lunar Phase

20
Q

Line between the light and dark side of an astronomical body is called the

A

Terminator

21
Q

Bulge in the terminator before or after quarter moon

A

Gibbous

22
Q

How long is Lunar or Synodic month?

A

29.53 days

23
Q

Moon to orbit earth in 27.3 days?

A

Sidereal month