Understanding Moon Phases and Orbits

The video tutorial explains the phases of the Moon, detailing how the Moon orbits the Earth in an anti-clockwise direction, completing one orbit in about 28 days. As the Moon orbits, it is illuminated by the Sun, with half always in daylight. The phases, such as new moon, crescent, half, gibbous, and full moon, are observed from Earth based on the illuminated and shaded regions. The video also explains the concepts of waxing and waning, describing how the visible portion of the Moon changes as it moves through its orbit.

How long does it take for the Moon to complete one orbit around the Earth?

• 14 days

• 28 days

• 30 days

• 365 days

In which direction does the Moon orbit the Earth?

• Clockwise

• Anti-clockwise

• Vertically

• Horizontally

What fraction of the Moon is always illuminated by the Sun?

• One third

• Half

• One quarter

• Three quarters

What causes the phases of the Moon as seen from Earth?

• The Earth's shadow on the Moon

• The Sun's position in the sky

• The Moon's rotation on its axis

• The Moon's position in its orbit

What is the appearance of the Moon when it is in the 'new moon' phase?

• Partially visible

• Not visible

• Half illuminated

• Fully illuminated

What is the term for the Moon phase when it appears as a thin sliver?

• Half Moon

• Gibbous Moon

• Crescent Moon

• Full Moon

Which phase of the Moon is characterized by most of its surface being illuminated?

• Half Moon

• New Moon

• Gibbous Moon

• Crescent Moon

During which phase is the entire disk of the Moon visible from Earth?

• Gibbous Moon

• Crescent Moon

• Full Moon

• New Moon

What does the term 'waning' refer to in the context of the Moon's phases?

• The Moon staying the same size

• The Moon getting smaller

• The Moon getting larger

• The Moon disappearing

What does 'waxing' mean in relation to the Moon's phases?

• The Moon staying the same size

• The Moon getting smaller

• The Moon getting larger

• The Moon disappearing