Decide whether each statement is true or false or choose the best answer to make

Question

Decide whether each statement is true or false or choose the best answer to make each statement true.

1. ( True or False ) The number of hours of daylight, the rising and setting positions of the Sun, and the altitude of the Sun at noon are the same on both equinoxes.

2. There are approximately 12 hours of daylight and 12 hours of darkness everywhere on Earth on ( the Vernal Equinox / the Autumnal Equinox / both Equinoxes ). Note: you may ignore the small effects discussed by the textbook authors on page 113 in the section titled, “Clarifications about the Real World.”

3. ( True or False ) The Sun rises due East and sets due West everywhere on Earth on both equinoxes.

4. The equinoxes are the two points where the ( ecliptic / meridian / plane of the Moon’s orbit ) crosses the ( galactic plane / zenith/nadir / celestial equator ).

Explanation / Answer

Answer 1: True.

Explanation : At equinox, the Earth's axis is tilted neither away from nor towards the Sun, resulting in a nearly equal amount of daylight at all latitudes. At yhe equator, the Sun is directly overhead at noon on these two equinoxes.

Answer 2: There are approximately 12 hours of daylight and 12 hours of darkness everywhere on Earth on Autumnal Equinox.

Explanation : On September 23, Autumnal equinox, there is 12 hours of darkness and 12 hours of daylight everywhere on Earth.

Answer 3: True.

Explanation :The Sun dises due east and sets sue west everywhere on Earth on both equinoxes.

Answer 4: The equinoxes are the two points where the ecliptic crosses the celestial equator.

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