Exam 3: Cycles of the Sun and Moon

The ecliptic is

Why does one cycle of lunar phases take 29.53 days even though the Moon orbits Earth in 27.32 days?

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

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

At the time of the winter solstice (the start of winter) the sunlight is at a lower angle and thus is ____ than(as) in the start of summer in the northern hemisphere.

The observed amount of difference between the perihelion of Earth in early January and aphelion in early July results in the northern hemisphere being _____.

What is the phase of the Moon shown in the above image?

An evening or morning star is a planet.

A "supermoon" is when the Moon is larger in the sky because it is closer to Earth in its elliptical orbit. This point is called ________________?

If the Earth's period of rotation were halved, but the period of revolution about the Sun stayed the same,

The figure shows the ______ and _____ Moon phases. ​

When it is winter in the northern hemisphere, it is ____ in the southern hemisphere.

The vernal equinox is the point on the sky where the Sun crosses the ____________ going north and east.

Northern hemisphere winters are colder than northern hemisphere summers because

If tonight is a full Moon then in about two weeks it will be a _______ Moon.

Choose the correct word(s) that make the statement true. A (lunar, solar) eclipse occurs when the Moon is (new, quarter, gibbous, full) and the ordering of aligned celestial objects is always Sun, Earth, Moon.

Earth is closest to the Sun during the month of January. Explain then why we do not experience our hottest weather in January in the northern hemisphere.

On the autumnal equinox the Sun is

If the plane of the Earth's equator were not tilted with respect to the ecliptic plane,

The most distant point in the Moon's orbit is called _________________.