Moon and Eclipse Study Guide

What phase is the Moon in when it is completely illuminated from Earth's perspective?

• New Moon

• First Quarter

• Full Moon

• Third Quarter

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DOK Level 1: Recall

Which part of the Moon's shadow covers the smallest area on Earth during a solar eclipse?

• Penumbra

• Umbra

• Antumbra

• None of the above

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DOK Level 1: Recall

What is a lunar eclipse?

• The Moon moves into Earth's shadow.

• The Earth moves into the Moon's shadow.

• The Sun moves behind the Moon.

• The Sun moves behind the Earth.

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DOK Level 1: Recall

During which moon phase can a solar eclipse occur?

• Full Moon

• New Moon

• First Quarter

• Last Quarter

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DOK Level 1: Recall

What is the term for the lighter part of the shadow from which part of the Sun is still visible?

• Umbra

• Penumbra

• Antumbra

• Photosphere

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DOK Level 1: Recall

How does the moon appear during the "New Moon" phase?

• Fully illuminated

• Partially illuminated on the right side

• Not visible

• Partially illuminated on the left side

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DOK Level 2: Skill/Concept

What must happen for a solar eclipse to be observed from Earth?

• The Moon must be between the Sun and Earth.

• The Earth must be between the Sun and the Moon.

• The Sun must be between the Earth and the Moon.

• The Moon must be behind the Earth.

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DOK Level 2: Skill/Concept

Why do lunar eclipses not occur every month?

• The Moon's orbit is tilted relative to Earth's orbit around the Sun.

• The Earth's orbit is perfectly circular.

• The Sun's light does not reach the Moon.

• The Moon is too far from Earth.

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DOK Level 2: Skill/Concept

Explain why a solar eclipse is shorter in duration than a lunar eclipse.

• The Moon moves faster than Earth's shadow.

• The Earth rotates very quickly.

• The shadow of the Moon on the Earth is smaller than the Earth's shadow on the Moon.

• Solar eclipses occur more frequently.

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DOK Level 2: Skill/Concept

What causes the red color of the Moon during a total lunar eclipse?

• The Moon is closer to the Sun.

• Sunlight passing through Earth's atmosphere scatters shorter wavelengths and allows longer wavelengths to reach the Moon.

• The Moon's surface reflects red light from Mars.

• The Sun turns red during the eclipse.

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DOK Level 3: Strategic Thinking