During a lunar eclipse, what is the penumbra?(1 point)
Responses
It is the part of Earth’s shadow where the sun is completely blocked.
It is the part of Earth’s shadow where the sun is completely blocked.
It is the part of the moon’s shadow where the sun is completely blocked.
It is the part of the moon’s shadow where the sun is completely blocked.
It is the part of the moon’s shadow where the sun is only partially blocked.
It is the part of the moon’s shadow where the sun is only partially blocked.
It is the part of Earth’s shadow where the sun is only partially blocked.
It is the part of Earth’s shadow where the sun is only partially blocked.
The correct response is: It is the part of the moon’s shadow where the sun is only partially blocked. (1 point)
The correct answer is "It is the part of the moon's shadow where the sun is only partially blocked." The penumbra is the outer region of a shadow where only a portion of the light source is blocked. In the context of a lunar eclipse, the Earth casts two types of shadows onto the moon's surface: the darker, central part called the umbra, where the sunlight is completely blocked, and the lighter, outer part called the penumbra, where the sunlight is partially blocked. So, during a lunar eclipse, the moon passes through the Earth's penumbra, causing a partial blocking of sunlight, resulting in a penumbral lunar eclipse.
