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Freedman and Kaufmann - Universe 10/e (Homework)

James Finch

Astronomy, section 1, Fall 2019

Instructor: Dr. Friendly

Current Score : 9 / 14

Due : Monday, January 28, 2030 00:00 EST

Last Saved : n/a Saving...  ()

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9/14 (64.3%)

  • Instructions

    W. H. Freeman and WebAssign



    Universe by Roger A. Freedman, Robert M. Geller and William J. Kaufmann III published by W. H. Freeman is now available as a WebAssign Premium product--designed to provide you with the most powerful online homework solution to complement your course and your students with a fully interactive and affordable learning experience!

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    • INTERACTIVE TUTORIALS reinforce the concepts presented in the classroom, providing students with self paced explanation and practice. Developed by prominent astronomy education researchers, the 62 Tutorials present astronomy topics in a flexible multimedia environment.
    • ANIMATION QUESTION TYPES provide you with varied options for testing your students. In addition to the standard multiple-choice and numerical questions for each chapter, we offer questions for visual learners.
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1. 0/1 points  |  Previous Answers FKAstro10 3.3.AQ.038. My Notes
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You are watching a lunar eclipse from some place on the Earth's night side. Will you see the Moon enter the Earth's shadow from the east or from the west?
     Incorrect: Your answer is incorrect.

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2. 2/2 points  |  Previous Answers FKAstro10 3.1.RQ.002. My Notes
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(a) Explain why the Moon exhibits phases.
     Correct: Your answer is correct.

(b) A common misconception about the Moon's phases is that they are caused by the Earth's shadow. Explain why this not correct. (see figure below)
     Correct: Your answer is correct.

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3. 1/1 points  |  Previous Answers FKAstro10 3.1.A.001. My Notes
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View the animation and answer the corresponding question below.

Phases of the Moon

The name of one of the lunar phases in the Dakota language means "diminishing moon." To which phase would this term most likely apply?
     Correct: Your answer is correct.

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4. –/3 points FKAstro10 3.2.AQ.031. My Notes
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–/3
 
(a) The Moon moves noticeably over the space of a single night. To show this, calculate how long it takes the Moon to move through an angle equal to its own angular diameter (1/2°) against the background of stars. Give your answer in hours.
hours

(b) Through what angle (in degrees) does the Moon move during a 7 hour night?
°Can you notice an angle of this size? (Hint: See the figure below.)
    

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5. 1/1 points  |  Previous Answers FKAstro10 3.PSP.3.023. My Notes
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The Moon completes an orbit around the Earth each synodic month. Why don't we see a solar eclipse each calendar month?
     Correct: Your answer is correct.

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6. –/1 points FKastro10 3.TB.4.115. My Notes
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During a total lunar eclipse, the Moon is
    

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7. 5/5 points  |  Previous Answers FKAstro10 3.5.QCQ.002. My Notes
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Tutorial Quick Check Quiz: Solar Eclipses

1. Most people who observe a solar eclipse tend to observe a total solar eclipse.
     Correct: Your answer is correct.
Correct. Right! Since the penumbral shadow is so much larger than the umbral shadow, more people will see a partial solar eclipse rather than a total solar eclipse.
2. During a total solar eclipse, the Moon completely blocks our view of any part of the Sun.
     Correct: Your answer is correct.
Correct. Right! While the Moon blocks our view of the Sun's photosphere, it does not block our view of the Sun's corona.
3. How long do solar eclipses last, for an observer at a given location?
     Correct: Your answer is correct.
Correct. Because the umbral shadow of the Moon on the Earth is small, and the Earth rotates under it, a given observer will be able to observe the eclipse typically for only a few minutes.
4. What if the Moon's orbit were larger than it currently is? Which type(s) of solar eclipse(s) would still occur?
     Correct: Your answer is correct.
Correct. The Moon would be farther away, and so wouldn't completely block the Sun, but it could still block part of it, either as a partial eclipse or an annular eclipse.
5. Eclipse paths move eastward across the Earth due to Correct: Your answer is correct. .
Correct. Right! The Moon moves counter-clockwise around the Earth, when viewed from the Earth's North Pole. While the Earth also rotates in this manner, the shadow of the Moon will move across the Earth faster than the Earth spins.

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