Question

In: Physics

-Solar eclipses do not happen every month because the shadow of the moon is usually too...

-Solar eclipses do not happen every month because

the shadow of the moon is usually too short to reach the Earth.

over the entire world, the weather is more often cloudy than clear.

the nodes of the moon's orbit are not stationary.

the moon’s orbital plane is tilted to the plane of the ecliptic.

the Earth speeds up and slows down in its orbit around the sun.

_________

-During an 18.61-year interval, solar and lunar eclipses cycle through all of the seasons. Eclipses can be seen in all parts of the sky because

the nodes of the moon's orbit are not stationary. They regress westward in an 18.61- year period.

the moon revolves around the Earth continually changing its position.

the Earth orbits the sun, continually changing its position.

the Earth speeds up and slows down in its orbit around the sun.

__________

-It is a true fact that central solar eclipses are more common than total lunar eclipses. If surveyed, why will a greater number of people say they have seen more total lunar eclipses than central solar eclipses? There are TWO CORRECT answers.

The umbral shadow of the moon in a central solar eclipse is a narrowing cone.

The observer must usually travel a considerable distance to reach the position on the Earth over which the moon's shadow or negative shadow will pass.

The entire nighttime hemisphere of the Earth is exposed to the lunar eclipse, giving (more than) half of the Earth’s surface availability to the event.

When a solar eclipse is total it is more difficult to observe.

The Earth presents a larger target to the moon's shadow than the Earth's shadow does to the moon.

Total are lunar eclipses more common than total solar eclipses. The above statement is not accurate.

____________

-What might be the only solar eclipse "joke" with some truth associated with it?

Group of answer choices

How did the ocean say hello to the sun after the eclipse? It waved.

How do you organize a solar eclipse party? You have to planet.

Did you hear about the new book about total solar eclipses? It’s called “The Dark,” by I. M. A. Fraid.

What’s the most famous painting of an eclipse? The Moona Lisa…

What did the sun bring to the solar eclipse party? A light snack…

What did the sun say when it reappeared after an eclipse? Pleased to heat you again.

______________

Expert Solution

1. A solar eclipse occurs when the Moon casts a shadow over Earth. They do not happen every month because the moon’s orbital plane is tilted to the plane of the ecliptic or in other words the Earth's orbit around the sun is not in the same plane as the Moon's orbit around the Earth.

2. The points where the Moon crosses the plane of the Earth’s orbit are known as nodes. Due to Sun's gravitational pull, they move counterclockwise around the Moon’s orbit. The regression of the nodes is cyclical, and the nodes return to the same location after approximately 18.61 years. Any two eclipses separated by 18.61 yr occur at the same node with the Moon at nearly the same distance from Earth and at the same time of year.

3. A greater number of people say they have seen more total lunar eclipses than central solar eclipses because the entire nighttime hemisphere of the Earth is exposed to the lunar eclipse, giving (more than) half of the Earth’s surface availability to the event. Moreover, the Earth casts a much larger shadow on the Moon during a lunar eclipse than the Moon casts on Earth during a solar eclipse and the umbral shadow of the moon in a central solar eclipse is a narrowing cone.

4. Solae eclipse occurs when the Sun, Moon and Earth are aligned. The combined gravitational pull of the Sun and moon cause high tides during the solar eclipse.

How did the ocean say hello to the sun after the eclipse? It waved

genius_generous answered 2 years ago

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