Astronomy Unit 1 MCQ

When the moon passes directly between the Earth and the Sun there is a

solar eclipse

The far side of the moon cannot be seen from earth because

the moon turns so that the near side is always facing the earth.

Summertime in the northern hemisphere is when the

northern hemisphere is tilted toward the Sun.

Approximately when does a New Moon rise?

sunrise

A solar eclipse occurs on the Earth when the

Moon casts a shadow on the Earth.

A lunar eclipse does not occur at every full Moon because the

moon's orbit around the Earth is slightly tilted away from the Earth's orbit around the sun.

The nightly motion of objects across our sky from horizon to horizon is caused by the

rotation of the Earth on its axis.

Which of the following statements about eclipses in the Sun-Earth-Moon system is correct?

A total eclipse of the Sun occurs only at new Moon.

Stars rise in the East and set in the West due to the

Rotation of the Earth

Different constellations are visible at different times of year due to the

Revolution of the Earth

The ecliptic can be defined as the

path traced out by the Sun in our sky over one year against the background stars.

One essential condition for “seasons” to occur on a planet is that the planet's

rotation axis is tilted away from a direction perpendicular to it's orbit.

For the Moon to appear as a crescent shape to an observer, the

Moon must be closer to the Sun than the observer is and somewhere between the Sun and the observer.

The full Moon always occurs

when the Moon is farther from the Sun than the Earth is.

If the moon rises in the East at the same time the Sun sets in the West, the moon must be in the _ phase.

Full

What phase is the moon in during a Solar Eclipse?

New

What phase is the moon in during a Lunar Eclipse?

Full

Why do we see different phases of the Moon?

The motion of the Moon in its orbit around Earth causes us to see different amounts of the sunlit side of the Moon.

Precession causes

the earth's axis to point to different parts of the sky over long periods

The difference between a solar day and a sidereal day happens because of

the motion of the earth around the sun

Solar eclipses

are always shorter than lunar eclipses