Eclipses Flashcard

Front

What happens to an object placed entirely in the umbra of another object?

Back

It is completely blocked from light and not visible.

Front

Why is the penumbra lighter than the umbra?

Back

Some light reaches the penumbra, but not the umbra.

Front

During a lunar eclipse, where is the moon located?

Back

In Earth’s umbra.

Front

What are the two parts of Earth's shadow in space?

Back

Umbra (completely dark) and Penumbra (partially shaded).

Front

What is the umbra?

Back

The darker, center part of a shadow where light is completely blocked.

Front

What is the penumbra?

Back

The outer part of a shadow where some light is still visible.

Front

What causes a solar eclipse?

Back

The moon passes between the Earth and the sun, blocking sunlight.

Front

What causes a lunar eclipse?

Back

The Earth passes between the sun and the moon, blocking sunlight from reaching the moon.

Front

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

Back

In a total eclipse, the light is completely blocked; in a partial eclipse, only part of the light is blocked.

Front

What is the path of totality?

Back

The area on Earth where a total solar eclipse can be observed.