Learning Path
Question & Answer1
Understand Question2
Review Options3
Learn Explanation4
Explore TopicChoose the Best Answer
A
Umbra
B
Penumbra
C
Antumbra
D
Perigee
Understanding the Answer
Let's break down why this is correct
Answer
During a lunar eclipse the Moon moves into the Earth's shadow, which has two parts: the penumbra and the umbra. The penumbra is the lighter, outer part where only part of the Sun is blocked. The umbra is the darkest, inner part where the Sun is completely hidden. When the Moon is entirely inside the umbra it is said to be in total eclipse, or simply “in the umbra. ” This is the moment when the Moon often looks reddish or dark as it passes through the Earth's full shadow.
Detailed Explanation
When the Moon reaches the center of Earth's shadow, all sunlight is cut off. Other options are incorrect because The outer region of the shadow still lets some sunlight through, so the Moon would still show a bright edge; The antumbra is a zone that creates a ring of light when the eclipsing body is smaller than the light source.
Key Concepts
Lunar Eclipse Phases
Shadow Types
Atmospheric Scattering
Topic
Lunar Eclipse Phases
Difficulty
medium level question
Cognitive Level
understand
Practice Similar Questions
Test your understanding with related questions
1
Question 1During a solar eclipse, the Moon passes between the Earth and the Sun, causing the shadow of the Moon to fall on the Earth. This phenomenon can be described as the alignment of the Earth, Moon, and _____.
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2
Question 2Arrange the following events in the correct sequence that leads to a lunar eclipse: A) The Earth casts a shadow on the Moon, B) The Sun, Earth, and Moon align, C) The Moon enters the Earth's shadow, D) The Moon is full.
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3
Question 3Classify the following events as either a Solar Eclipse, Lunar Eclipse, or neither: 1) The Moon passes between the Earth and the Sun; 2) The Earth casts a shadow on the Moon; 3) A full moon occurs without any shadowing; 4) The Moon is in the Earth's shadow during a full moon.
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4
Question 4During a solar eclipse, what type of shadow is cast by the Moon when the Sun is completely obscured, resulting in darkness for observers on Earth?
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5
Question 5During a solar eclipse, which shadow of the Moon do you need to be in to experience a total eclipse?
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6
Question 6During a solar eclipse, what part of the Moon's shadow allows some sunlight to reach the Earth?
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7
Question 7What is the correct sequence of events during a lunar eclipse, from the Moon entering the Earth's shadow to the end of the eclipse?
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8
Question 8During a lunar eclipse, a group of students observes the Moon gradually changing color as it passes through the Earth's shadow. One student thinks that this color change is due to the Moon being illuminated by other stars. Which explanation best describes why the Moon appears red during a lunar eclipse?
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Practice
9
Question 9During a lunar eclipse, which phase of the Moon typically corresponds to the Earth casting its umbral shadow on the Moon?
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Practice
10
Question 10Earth's shadow on the Moon during a lunar eclipse is to a penumbral shadow as a person's shadow under a tree is to what?
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Practice
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