Moon Phases, Eclipses and Tides Flashcard

Front

What are the phases of the Moon?

Back

The phases of the Moon are the different appearances of the Moon as seen from Earth, which include New Moon, Waxing Crescent, First Quarter, Waxing Gibbous, Full Moon, Waning Gibbous, Last Quarter, and Waning Crescent.

Front

What is a lunar eclipse?

Back

A lunar eclipse occurs when the Earth passes between the Sun and the Moon, causing the Earth's shadow to cover the Moon.

Front

What is a solar eclipse?

Back

A solar eclipse occurs when the Moon passes between the Sun and the Earth, blocking all or part of the Sun's light from reaching the Earth.

Front

What is the difference between a total lunar eclipse and a partial lunar eclipse?

Back

In a total lunar eclipse, the entire Moon passes through the Earth's umbra (full shadow), while in a partial lunar eclipse, only a part of the Moon enters the umbra.

Front

What are neap tides?

Back

Neap tides are the tides with the least difference between high and low tide, occurring during the first and third quarters of the Moon.

Front

What are spring tides?

Back

Spring tides are the tides with the greatest difference between high and low tide, occurring during the full moon and new moon.

Front

Why can a lunar eclipse only be observed at night?

Back

A lunar eclipse can only be observed at night because it occurs when the Moon is in the Earth's shadow, which is only visible when the Sun is not illuminating the Moon.

Front

What alignment is required for a solar eclipse to occur?

Back

For a solar eclipse to occur, the Moon must be aligned in a straight line between the Sun and the Earth.

Front

How often do full moons occur?

Back

Full moons occur approximately every 29.5 days, which is the length of a lunar month.

Front

What is the significance of the Moon's position in relation to tides?

Back

The Moon's gravitational pull affects the Earth's oceans, causing tides. The position of the Moon relative to the Earth and Sun determines the type of tide (neap or spring).