Exam 3: Cycles of the Sun and Moon

The gibbous Moon is never visible in the daytime sky.

The lowest amount of solar energy per square meter is incident upon the surface of Earth in the northern hemisphere on or about

Explain why people who live close to the equator do not experience major changes in the seasons.

The Moon always keeps the same side facing Earth and therefore Earth always keeps the same side facing the Moon.

Choose the correct word(s) that make the statement true. The stars appear to rise and set from east to west, but really the sky is not moving and Earth is rotating from (north, south, east, west) to (north, south, east, west).

Assume you lived on the Moon and noticed the Earth high in the sky. From that location, how often would the Earth set below your horizon

The equator receives the same amount of sunlight from season to season.

Give two reasons why summer days are warmer than winter days.

Complete the following analogy: ____________::______________ as spin::orbit.

Earth's orbit is nearly circular, varying by only a few percent in distance from the Sun over one orbital period.

The ____________________ of the Sun is not visible during a total solar eclipse.

Why are penumbral eclipses less obvious than partial eclipses

Describe how a small change in the relative distance of Earth from the Sun at perihelion could affect the formation of glaciers on Earth.

For a northern hemisphere observer the ____________________ Moon is visible in the south-eastern sky just after sunset.

Choose the correct word(s) that make the statement true. Say you live in the southern hemisphere and the date is March 20. For you, summer is ending. Therefore, the March 20th date is the first day of (spring, summer, fall, winter), an event called the (vernal equinox, summer solstice, autumnal equinox, winter solstice) .

In the picture shown, what phase is the Moon

The vernal equinox occurs above the same geographic point on Earth from year to year.

Describe the difference between an umbral and a penumbral lunar eclipse as seen by an observer on Earth.

Why is the eclipse year shorter than 365.25 days

Relative to the stars in the sky, the Sun moves