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Science > Moon Phases > Flashcards

Moon Phases Flashcards

1
Q

The spinning of Earth on its axis

A

Rotation

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2
Q

The movement of one object around another

A

Revolution

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3
Q

A planet sized object collided with Earth to form the moon

A

Collision Ring Theory

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4
Q

A device used to observe distant objects by making them appear closer

A

Telescope

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5
Q

Telescopes that have a mirror

A

Reflecting

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6
Q

Telescopes with objective lenses

A

Refracting

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7
Q

Dark, flat areas on the moon made of hardened rock formed from lava flows that occurred 3-4 billion years ago

A

Maria

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8
Q

Lighter, rough mountain areas of the moon

A

Highlands

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9
Q

Bowl shaped areas created by the impact of meteoroids (small chunks of rock from space)

A

Crater

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10
Q

The moon rotates ____ for every revolution around the Earth, so we never see the far side of the moon

A

Once

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11
Q

Different shapes of the moon you see from Earth

A

Phases

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12
Q

When the moon passes directly between the Earth and the sun, blocking sunlight from Earth. The moon’s shadow hits Earth.

A

Solar Eclipse

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13
Q

When Earth blocks sunlight from reaching the moon

A

Lunar Eclipse

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14
Q

During a total lunar eclipse, the moon is in earth’s _____

A

Umbra

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15
Q

The darkest part of the moon or Earth’s shadow

A

Umbra

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16
Q

The largest part of the shadow

A

Penumbra

17
Q

The force of _______ pulls the moon and Earth towards each other.

A

Gravity

18
Q

The sun, moon, and Earth are in line during a new moon. The gravity of the sun and the moon pull in the same direction. Their combined forces produce a tide with the greatest difference between consecutive low and high tides. Occurs twice a month during new and full moon.

A

Spring tide

19
Q

Occurs twice a month during 1st and 3rd quarter phases. The line between the Earth and sun is at a right angle to the line between the Earth and the moon, which produces tide that has the least difference between consecutive low and high tides.

A

Neap tide

20
Q

The force that attracts all objects towards each other

A

Gravity

21
Q

Every object in the universe attracts every other object.

A

Newton’s law of universal attraction

22
Q

The strength of gravity depends on the ____ of objects and the ________ between the objects.

A

Mass, distance

23
Q

The tendency of an object to resist a change in motion. The greater the mass, the greater the _______. (Also known as Newton’s 1st law of motion)

A

Inertia

24
Q

_______ and _______ combine to keep Earth in orbit around the sun and the moon in orbit around the Earth.

A

Gravity, Inertia

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