Exam 3: Eclipses and the Motion of the Moon

The Moon is now in its waxing crescent phase. If you could view the far side of the Moon it would be:

If on a particular day the Sun is at one of the solstices and the Moon is at one of the equinoxes, then the lunar phase on that day is:

Total solar eclipses seen at approximately the same latitude occur in a sequence with a time interval, the saros, of 223 lunar sidereal months. How many eclipse years is this?

Aristarchus measured the Sun-Earth-Moon angle at quarter moon to be 87° and calculated that the Sun is 20 times as far away as the Moon. Actually, the Sun is almost 400 times as far away as the Moon. Thus the actual Sun-Earth-Moon angle at quarter moon must be:

You are standing at the equator of the Moon and a particular star is overhead at that time. How long will it be before that star is approximately overhead again?

If the Moon is now in its waxing crescent phase, 2 weeks from now it will be:

When will the first quarter moon rise, approximately? (You may want to examine Figure 3-2 of Universe, 11th ed., and think about where you would need to stand on Earth to see the first quarter moon rising.) ​

At the ancient Egyptian city of Syene, the Sun was directly overhead only at summer solstice. Thus, Syene must have been very close to:

Suppose the Moon rotated on its axis with the same period it has now but in the opposite direction. Which of the following would change?

During a month we see only approximately half of the moon's surface. Which one of the following changes would allow us to see all of the Moon's surface during 1 month?

In about 280 B.C., Aristarchus devised a method of estimating the relative distance of the Sun and the Moon from Earth by:

If the Moon is located at the vernal equinox on September 20, what is the phase of the Moon?

Which one of the following affects the rate at which the Moon goes through its phases?

The gravitational pull of the Sun on the Moon causes each one of the changes listed below EXCEPT ONE. Which one is the EXCEPTION?

The ancient Greek astronomer Aristarchus is famous for devising a method for measuring the:

The Greek astronomer who first measured the radius of Earth reasonably accurately was:

Which significant observation led the Greeks to accept the idea that Earth was a sphere?

The waxing gibbous phase of the Moon occurs when the Moon passes:

Eratosthenes, an ancient Greek astronomer, is famous for:

In 1 hour, the motion of the Moon across our sky as seen against the background of stars is: (Hint: Through what angle around the sky does the Moon move in 1 month?)