Learning Path
Question & Answer1
Understand Question2
Review Options3
Learn Explanation4
Explore TopicChoose the Best Answer
A
A sharp shadow cast by a streetlamp
B
A fading shadow as the sun sets
C
A shadow created by a cloudy sky
D
A shadow cast by a nearby building
Understanding the Answer
Let's break down why this is correct
Answer
The Earth's shadow on the Moon during a lunar eclipse is the umbra, a full, dark shadow. A penumbral shadow is a lighter, partial shadow, like a shadow with a fuzzy edge. A person’s shadow under a tree is a full, dark shadow, just as the Earth's umbra is. The penumbral shadow is therefore analogous to a shadow on a sunny day that has a softer, less defined edge. Thus, a person’s shadow under a tree is to a shadow on a sunny day as the Earth's umbra is to a penumbral shadow.
Detailed Explanation
A penumbral shadow is soft and not sharply defined. Other options are incorrect because Many think a penumbral shadow looks sharp like a streetlamp’s shadow; A cloudy sky diffuses light, giving a dull shadow.
Key Concepts
Lunar Eclipse Phases
Shadows and Light
Atmospheric Scattering
Topic
Lunar Eclipse Phases
Difficulty
easy 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 2During 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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3
Question 3During a solar eclipse, which shadow of the Moon do you need to be in to experience a total eclipse?
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4
Question 4During a solar eclipse, what part of the Moon's shadow allows some sunlight to reach the Earth?
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5
Question 5What 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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6
Question 6During a lunar eclipse, the Moon passes through the Earth's shadow, and when it is completely within the darkest part of the shadow, it is said to be in the _____.
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7
Question 7During 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
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