Question

1. if position 1 is a new moon & position 5 is a full moon, what would the moon look like from space at position 2?

a.
b.
c.
d.

1. the partial or total blocking of one object in space by another is called a(n)...

a. umbra \tc. eclipse
b. penumbra \td. orbit

1. during a total lunar eclipse the moon is in earth’s ...

a. umbra (total shadow) \tc. orbit
b. corona \td. penumbra (partial shadow)

1. how long does a lunar cycle last?

a. 1 day
b. 1 year
c. 27 days
d. 15 days

Explanation:

Question 17

Step1: Recall Moon Phases

New moon (position 1) to full moon (position 5) progresses through waxing phases. Position 2 should be a waxing crescent or early waxing, but from space, the illuminated part from the Sun's perspective. Wait, the options: a has right half dark, b has left dark (waxing crescent from Earth, but from space, the illuminated part is what? Wait, new moon is when Moon is between Earth and Sun, so at position 2 (moving from 1 to 5, so orbiting Earth), the Moon's illuminated side (from Sun) would have a small portion visible from space? Wait, no—from space (like from a satellite), the Moon's phase as seen from space: new moon is almost all dark (from Earth's view), but from space, the illuminated side is facing Sun. Wait, maybe the question is from Earth? Wait, no, "from SPACE at position 2". Wait, position 1: new moon (Moon between Earth and Sun, so from space (outside Earth-Moon-Sun line), the Moon's illuminated side is away from Earth. Position 2: moving in orbit, so the illuminated portion visible from space (towards Sun) would have a crescent? Wait, the options: d is new moon (almost dark), c is full, a and b are partial. Wait, new moon (1) to full (5) is waxing. So position 2: waxing crescent, but from space, the illuminated part is on the side towards Sun. Wait, maybe the diagram: a has right half dark (waning?), b has left dark (waxing). Wait, maybe the answer is b? Wait, no—wait, new moon (position 1) is when Moon is at 0 degrees, full at 180. Position 2 is about 45 degrees, so the illuminated portion from space (Sun's light) would have a small crescent on the right? Wait, maybe I'm overcomplicating. Alternatively, the options: d is new moon (position 1), c is full (position 5). So position 2 is between new and full, so waxing, so the Moon from space would have a portion illuminated. So the correct image is b? Wait, maybe the answer is b. But I need to check. Alternatively, maybe the question is from Earth, but it says "from SPACE". Wait, maybe the answer is b.

Step2: Match with Options

Looking at the images: a is half dark (first quarter?), b is a waxing crescent (left dark, right illuminated), d is new moon, c is full. So position 2 (after new moon) should be a waxing crescent, so from space, the illuminated part is on the side towards Sun, so the image b (since from space, the Moon's illuminated side is what we see, and position 2 is waxing, so the dark part is on the left (from space, facing Earth? No, from space, Earth is on one side. Wait, maybe the answer is b.

The partial or total blocking of one space object by another is an eclipse. Umbra/penumbra are shadow parts, orbit is a path. So the correct term is eclipse.

During a total lunar eclipse, the Moon is in Earth’s umbra (total shadow), as penumbra is partial. Corona is Sun's atmosphere, orbit is path. So the Moon is in umbra for total eclipse.

Answer:

b (the middle image, labeled b)

Question 18