The sun appears to move through the celestial sphere at a rate of: a) 4 degrees

Question

The sun appears to move through the celestial sphere at a rate of: a) 4 degrees per day b) 15 degrees per day c) one degree per day d) one degree per month e) one degree per year f) 180 degrees per year g) 15 degrees per month.

Sun rises and sets due east and west_____________. Select all that apply. a) at the vernal equinox b) at the winter solstice c) at the autumnal equinox d) on the day that earth is farthest from the sun e) only on leap years f) only at the start of each century g) on the day that the earth is closest to the sun h) at the summer solstice.

Explanation / Answer

First question -

Option (c) one degree per day, is the correct answer.

Explanation -

There are about 365.25 days in a year and 360 degrees in a circle. Therefore, the sun appears to move along the ecliptic at a rate (360 deg / 365.25 days) = 0.98 deg = approx. 1 deg. per day.

Second Question -

Option (a) at the vernal equinox' and option (c) at the autumnal, both are the correct answers.

Explanation -

I think both the options are correct for the above question because, equinox is the event which occurs two times of the year when the Earth's axis is tilted neither towards nor away from the sun. This results in a nearly equal amount of daylight and darkness at all latitudes. And in our case the vernal and the autumnal both are the equinoxes.

Related Questions

Navigate

• Browse (All)
• Browse T
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.