# Study Guide

Topics: Earth, Planet, Sun Pages: 53 (8834 words) Published: February 17, 2013
* Question 1
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| 1. After a new moon, about how long is it until a 1st quarter moon? Answer| | | | | Selected Answer:| B. Two weeks|
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* Question 2
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| 2. If there is a full moon visible from Paris one evening, twelve hours later in Australia there will be a _________ visible. Answer| | | | | Selected Answer:| B. New moon.|
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* Question 3
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| 3. Directly above the Earth's equator lies the ______________ in the sky.Answer| | | | | Selected Answer:| A. North celestial pole|
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* Question 4
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| 4. In which season is the Earth closest to the Sun? Answer| | | | | Selected Answer:| A. When it is winter in North America| Correct Answer:| A. When it is winter in North America|

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* Question 5
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| 5. The equinox is the time whenAnswer| | | |
| Selected Answer:| D. All the nights are equally long through out the month| Correct Answer:| C. The ecliptic crosses the celestial equator|
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* Question 6
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| 6. Why do the constellations that are visible in the sky at night change with the seasons? Answer| | | | | Selected Answer:| D. Because the Earth revolves around the Sun| Correct Answer:| D. Because the Earth revolves around the Sun|

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* Question 7
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| 7. What is the ecliptic? Answer| | | |
| Selected Answer:| B. The extension of the Earth's path on the celestial sphere| Correct Answer:| B. The extension of the Earth's path on the celestial sphere|
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* Question 8
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| 8. What causes the seasons? Answer| | | |
| Selected Answer:| C. The fact that the ecliptic is tilted with respect to the celestial equator| Correct Answer:| C. The fact that the ecliptic is tilted with respect to the celestial equator|

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* Question 9
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| 9. When does the full Moon phase occur? Answer| | | | | Selected Answer:| A. When the Earth is between the Sun and the Moon| Correct Answer:| A. When the Earth is between the Sun and the Moon|

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* Question 10
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| 10. During which phase of the Moon do you expect to observe a solar eclipse? Answer| | | | | Selected Answer:| B. New Moon|
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* Question 11
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| 11. Which of the following statements about eclipses is true? Answer| | | | | Selected Answer:| C. A lunar eclipse is visible from any location on the night-side of the Earth| Correct Answer:| E. All of the above|

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* Question 12
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| 12. Kepler's third, or harmonic, law states that the Answer| | | | | Selected Answer:| A. Period of an orbit cubed equals the semi-major axis squared.| Correct Answer:| B. Semi-major axis of an orbit cubed equals the period squared.|

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* Question 13
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| 13. The paths of the planets on the sky are tilted with respect to the celestial equator by about Answer| | | | | Selected Answer:| B. 23 degrees|
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* Question 14
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| 14. Copernicus' heliocentric model failed to work as well as it might to predict the positions of planets because Copernicus insisted the orbits were Answer| | | | | Selected Answer:| B. Elliptical.|

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* Question 15
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| 15. _________ was the first person to measure the circumference of the Earth.Answer| | | | | Selected Answer:| C....